Commit a1bf3268 authored by Florian Kaltenberger's avatar Florian Kaltenberger

moving old simulators

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7228 818b1a75-f10b-46b9-bf7c-635c3b92a50f
parent 486b48f9
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any implied license or other defenses to infringement that may
otherwise be available to you under applicable patent law.
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14. Revised Versions of this License.
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Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
include $(OPENAIR_HOME)/common/utils/Makefile.inc
TOP_DIR = $(OPENAIR1_DIR)
OPENAIR1_TOP = $(OPENAIR1_DIR)
OPENAIR2_TOP = $(OPENAIR2_DIR)
OPENAIR3 = $(OPENAIR3_DIR)
CFLAGS += -DPHYSIM -DNODE_RG -DUSER_MODE -DPC_TARGET -DPC_DSP -DNB_ANTENNAS_RX=2 -DNB_ANTENNAS_TXRX=2 -DNB_ANTENNAS_TX=2 -DPHY_CONTEXT=1 -rdynamic -DMALLOC_CHECK_=1 # -Wno-packed-bitfield-compat
LFLAGS = -lm -lblas -lxml2 -lrt
CFLAGS += -m32 -DOPENAIR_LTE #-DOFDMA_ULSCH #-DIFFT_FPGA -DIFFT_FPGA_UE
#CFLAGS += -DTBS_FIX
CFLAGS += -DCELLULAR
ASN1_MSG_INC = $(OPENAIR2_DIR)/RRC/LITE/MESSAGES
ifdef EMOS
CFLAGS += -DEMOS
endif
ifdef DEBUG_PHY
CFLAGS += -DDEBUG_PHY
endif
ifdef MeNBMUE
CFLAGS += -DMeNBMUE
endif
ifdef MU_RECEIVER
CFLAGS += -DMU_RECEIVER
endif
ifdef ZBF_ENABLED
CFLAGS += -DNULL_SHAPE_BF_ENABLED
endif
ifdef RANDOM_BF
CFLAGS += -DRANDOM_BF
endif
ifdef PBS_SIM
CFLAGS += -DPBS_SIM
endif
# Debugging flags
#CFLAGS += -DDEBUG_DLSCH_CODING
#CFLAGS += -DDEBUG_DLSCH_DECODING
#CFLAGS += -DDEBUG_LOGMAP
# Always use this flag with relaysim. Will be fixed in future versions.
CFLAGS += -DREL_AMPLIFY_FORWARD
# Use this flag if you want to run relaysim with only 1 relay node.
#CFLAGS += -DSINGLE_RELAY
# This is a flag to use different patterns for RVI (redundancy versions)
# Normally it is (0,0,1,1). If you use this flag, it is used as (0,1,1,0).
CFLAGS += -DRVI_PATTERN_ALT
# This flag is used in relayQMFsim where relays are Quantize-Forward relays.
# with this option you get results which assumes there is no error in the first link (Source-Relays).
# This kind of an upper bound to the performance of QMF relays in this scenario after LLR adjustment at the destination.
#CFLAGS += -DQF_UPPER_BOUND
CFLAGS += -DNO_RRM #-DOPENAIR2 -DPHY_ABSTRACTION
ifdef XFORMS
CFLAGS += -DXFORMS
LFLAGS += -lforms
endif
ifdef PERFECT_CE
CFLAGS += -DPERFECT_CE
endif
ifdef BIT8_TX
CFLAGS += -DBIT8_TX
endif
CFLAGS += -DNO_RRM -DOPENAIR1 #-DOPENAIR2 #-DPHY_ABSTRACTION
CFLAGS += -I/usr/include/X11 -I/usr/X11R6/include
ifdef ENABLE_FXP
CFLAGS += -DENABLE_FXP # Fxp only
else
ifdef ENABLE_FLP
CFLAGS += -DENABLE_FLP # dual_stream_correlation(), channel_compensation_prec() and qam16_qam16_mu_mimo() are flp (independently)
else
ifdef ENABLE_FULL_FLP
CFLAGS += -DENABLE_FULL_FLP # Flp inside of rx_pdsch() (dlsch_detection_mrc(), dual_stream_correlation(), channel_compensation_prec(), qam16_qam16_mu_mimo() and dlsch_16qam_16qam_llr)
else
CFLAGS += -DENABLE_FXP # Fxp only by default
endif
endif
endif
ifdef COMPARE_FLP_AND_FXP
CFLAGS += -DCOMPARE_FLP_AND_FXP
endif
include $(TOP_DIR)/PHY/Makefile.inc
#SCHED_OBJS = $(TOP_DIR)/SCHED/phy_procedures_lte_common.o $(TOP_DIR)/SCHED/phy_procedures_lte_eNb.o $(TOP_DIR)/SCHED/phy_procedures_lte_ue.o
include $(TOP_DIR)/SCHED/Makefile.inc
include $(TOP_DIR)/SIMULATION/Makefile.inc
include $(OPENAIR2_DIR)/LAYER2/Makefile.inc
include $(OPENAIR2_DIR)/UTIL/Makefile.inc
include $(OPENAIR2_DIR)/RRC/LITE/MESSAGES/Makefile.inc
CFLAGS += $(L2_incl) -I$(ASN1_MSG_INC) -I$(TOP_DIR) -I$(OPENAIR3) $(UTIL_incl)
# EXTRA_CFLAGS =
#STATS_OBJS += $(TOP_DIR)/ARCH/CBMIMO1/DEVICE_DRIVER/cbmimo1_proc.o
#LAYER2_OBJ += $(OPENAIR2_DIR)/LAYER2/MAC/rar_tools.o
LAYER2_OBJ = $(OPENAIR2_DIR)/LAYER2/MAC/lte_transport_init.o
OBJ = $(PHY_OBJS) $(SIMULATION_OBJS) $(TOOLS_OBJS) $(SCHED_OBJS) $(LAYER2_OBJ) $(LOG_OBJS) #$(ASN1_MSG_OBJS)
#OBJ2 = $(PHY_OBJS) $(SIMULATION_OBJS) $(TOOLS_OBJS)
ifdef XFORMS
OBJ += ../../USERSPACE_TOOLS/SCOPE/lte_scope.o
endif
OBJ += openair_hw.o
all: relaysim
$(OBJ) : %.o : %.c
@echo
@echo Compiling $< ...
$(CC) -c $(CFLAGS) -o $@ $<
relaysim : $(OBJ) relaysim.c
@echo "Compiling relaysim.c ..."
$(CC) relaysim.c -o relaysim $(CFLAGS) $(OBJ) $(LFLAGS) #-static -L/usr/lib/libblas
clean :
rm -f $(OBJ)
rm -f *.o
cleanall : clean
rm -f relaysim
rm -f *.exe*
showcflags :
@echo $(CFLAGS)
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
#include <string.h>
#include <math.h>
#include <unistd.h>
#include <execinfo.h>
#include <signal.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include "SIMULATION/TOOLS/defs.h"
#include "PHY/types.h"
#include "PHY/defs.h"
#include "PHY/extern.h"
#include "MAC_INTERFACE/extern.h"
#ifdef IFFT_FPGA
#include "PHY/LTE_REFSIG/mod_table.h"
#endif
#include "ARCH/CBMIMO1/DEVICE_DRIVER/cbmimo1_device.h"
#include "ARCH/CBMIMO1/DEVICE_DRIVER/defs.h"
#include "ARCH/COMMON/defs.h"
#include "ARCH/CBMIMO1/DEVICE_DRIVER/extern.h"
#include "SCHED/defs.h"
#include "SCHED/extern.h"
#include "LAYER2/MAC/extern.h"
TX_RX_VARS dummy_tx_rx_vars;
int pci_buffers[2*NB_ANTENNAS_RX];
int openair_fd,fc;
unsigned int bigphys_top;
unsigned int mem_base;
int setup_oai_hw(LTE_DL_FRAME_PARMS *frame_parms,
PHY_VARS_UE *phy_vars_ue,
PHY_VARS_eNB *phy_vars_eNB)
{
int i,j;
frame_parms->dual_tx = 0;
frame_parms->freq_idx = 0;
fc = 0;
printf("Opening /dev/openair0\n");
if ((openair_fd = open("/dev/openair0", O_RDWR)) <0) {
fprintf(stderr,"Error %d opening /dev/openair0\n",openair_fd);
exit(-1);
}
ioctl(openair_fd,openair_DUMP_CONFIG,frame_parms);
sleep(1);
// ioctl(openair_fd,openair_GET_BUFFER,(void *)&fc);
ioctl(openair_fd,openair_GET_VARS,&dummy_tx_rx_vars);
ioctl(openair_fd,openair_GET_BIGPHYSTOP,(void *)&bigphys_top);
if (dummy_tx_rx_vars.TX_DMA_BUFFER[0]==NULL) {
printf("pci_buffers not allocated\n");
close(openair_fd);
exit(-1);
}
printf("BIGPHYS top 0x%x\n",bigphys_top);
printf("RX_DMA_BUFFER[0] %p\n",dummy_tx_rx_vars.RX_DMA_BUFFER[0]);
printf("TX_DMA_BUFFER[0] %p\n",dummy_tx_rx_vars.TX_DMA_BUFFER[0]);
mem_base = (unsigned int) mmap(0,
BIGPHYS_NUMPAGES*4096,
PROT_READ|PROT_WRITE,
MAP_SHARED|MAP_FIXED,//MAP_SHARED,
openair_fd,
0);
if (mem_base != -1)
msg("MEM base= 0x%x\n",mem_base);
else {
msg("Could not map physical memory\n");
close(openair_fd);
exit(-1);
}
if (phy_vars_ue) {
// replace RX signal buffers with mmaped HW versions
for (i=0; i<frame_parms->nb_antennas_rx; i++) {
free(phy_vars_ue->lte_ue_common_vars.rxdata[i]);
phy_vars_ue->lte_ue_common_vars.rxdata[i] = (int32_t*)((int)dummy_tx_rx_vars.RX_DMA_BUFFER[0]-bigphys_top+mem_base);
printf("rxdata[%d] @ %p\n",i,phy_vars_ue->lte_ue_common_vars.rxdata[i]);
}
for (i=0; i<frame_parms->nb_antennas_tx; i++) {
free(phy_vars_ue->lte_ue_common_vars.txdata[i]);
phy_vars_ue->lte_ue_common_vars.txdata[i] = (int32_t*)((int)dummy_tx_rx_vars.TX_DMA_BUFFER[0]-bigphys_top+mem_base);
printf("txdata[%d] @ %p\n",i,phy_vars_ue->lte_ue_common_vars.txdata[i]);
}
}
if (phy_vars_eNB) {
// replace RX signal buffers with mmaped HW versions
for (i=0; i<frame_parms->nb_antennas_rx; i++) {
free(phy_vars_eNB->lte_eNB_common_vars.rxdata[0][i]);
phy_vars_eNB->lte_eNB_common_vars.rxdata[0][i] = (int32_t*)((int)dummy_tx_rx_vars.RX_DMA_BUFFER[0]-bigphys_top+mem_base);
printf("rxdata[%d] @ %p\n",i,phy_vars_eNB->lte_eNB_common_vars.rxdata[0][i]);
}
for (i=0; i<frame_parms->nb_antennas_tx; i++) {
free(phy_vars_eNB->lte_eNB_common_vars.txdata[0][i]);
phy_vars_eNB->lte_eNB_common_vars.txdata[0][i] = (int32_t*)((int)dummy_tx_rx_vars.TX_DMA_BUFFER[0]-bigphys_top+mem_base);
printf("txdata[%d] @ %p\n",i,phy_vars_eNB->lte_eNB_common_vars.txdata[0][i]);
for (j=0; j<16; j++) {
printf("txbuffer %d: %x\n",j,phy_vars_eNB->lte_eNB_common_vars.txdata[0][i][j]);
phy_vars_eNB->lte_eNB_common_vars.txdata[0][i][j] = 16-j;
}
// msync(openair_fd);
}
}
return(openair_fd);
}
This file is created by Emre Atsan. emre.atsan@epfl.ch, ARNI, EPFL, CH.
------------------------------------------------------------
Link level simulations for CONECT project Diamond Relay Network Scenario.
We assume Half-Duplex relays and a proper scheduling in which two relays never transmit at the same time.
* relaysim: This file is an extension to dlsim with additional channels created for the second source-relay and relay-destination paths. Relays are AF (Amplify-Forward relays in this simulation).
* relayQMFsim: Similar to relaysim, except relays are Quantize-Forward relays.
/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
#include <string.h>
#include <math.h>
#include <unistd.h>
#include <execinfo.h>
#include <signal.h>
#include "SIMULATION/TOOLS/defs.h"
#include "PHY/types.h"
#include "PHY/defs.h"
#include "PHY/vars.h"
#include "MAC_INTERFACE/vars.h"
#ifdef IFFT_FPGA
#include "PHY/LTE_REFSIG/mod_table.h"
#endif
#include "ARCH/CBMIMO1/DEVICE_DRIVER/vars.h"
#include "SCHED/defs.h"
#include "SCHED/vars.h"
#include "LAYER2/MAC/vars.h"
#include "OCG_vars.h"
#include "UTIL/LOG/log.h"
#ifdef XFORMS
#include "forms.h"
#include "../../USERSPACE_TOOLS/SCOPE/lte_scope.h"
#endif
//#define AWGN
//#define NO_DCI
#define BW 7.68
//#define ABSTRACTION
//#define PERFECT_CE
/*
#define RBmask0 0x00fc00fc
#define RBmask1 0x0
#define RBmask2 0x0
#define RBmask3 0x0
*/
PHY_VARS_eNB *PHY_vars_eNB;
PHY_VARS_UE *PHY_vars_UE;
void handler(int sig)
{
void *array[10];
size_t size;
// get void*'s for all entries on the stack
size = backtrace(array, 10);
// print out all the frames to stderr
fprintf(stderr, "Error: signal %d:\n", sig);
backtrace_symbols_fd(array, size, 2);
exit(1);
}
#ifdef XFORMS
void do_forms(FD_lte_scope *form, LTE_DL_FRAME_PARMS *frame_parms, short **channel, short **channel_f, short **rx_sig, short **rx_sig_f, short *dlsch_comp, short* dlsch_comp_i, short* dlsch_rho,
short *dlsch_llr, int coded_bits_per_codeword)
{
int i,j,ind,k,s;
float Re,Im;
float mag_sig[NB_ANTENNAS_RX*4*NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT],
sig_time[NB_ANTENNAS_RX*4*NUMBER_OF_OFDM_CARRIERS*NUMBER_OF_OFDM_SYMBOLS_PER_SLOT],
sig2[FRAME_LENGTH_COMPLEX_SAMPLES],
time2[FRAME_LENGTH_COMPLEX_SAMPLES],
I[25*12*11*4], Q[25*12*11*4],
*llr,*llr_time;
float avg, cum_avg;
llr = malloc(coded_bits_per_codeword*sizeof(float));
llr_time = malloc(coded_bits_per_codeword*sizeof(float));
// Channel frequency response
cum_avg = 0;
ind = 0;
for (j=0; j<4; j++) {
for (i=0; i<frame_parms->nb_antennas_rx; i++) {
for (k=0; k<NUMBER_OF_OFDM_CARRIERS*7; k++) {
sig_time[ind] = (float)ind;
Re = (float)(channel_f[(j<<1)+i][2*k]);
Im = (float)(channel_f[(j<<1)+i][2*k+1]);
//mag_sig[ind] = (short) rand();
mag_sig[ind] = (short)10*log10(1.0+((double)Re*Re + (double)Im*Im));
cum_avg += (short)sqrt((double)Re*Re + (double)Im*Im) ;
ind++;
}
// ind+=NUMBER_OF_OFDM_CARRIERS/4; // spacing for visualization
}
}
avg = cum_avg/NUMBER_OF_USEFUL_CARRIERS;
//fl_set_xyplot_ybounds(form->channel_f,30,70);
fl_set_xyplot_data(form->channel_f,sig_time,mag_sig,ind,"","","");
/*
// channel time resonse
cum_avg = 0;
ind = 0;
for (k=0;k<1;k++){
for (j=0;j<1;j++) {
for (i=0;i<frame_parms->ofdm_symbol_size;i++){
sig_time[ind] = (float)ind;
Re = (float)(channel[k+2*j][2*i]);
Im = (float)(channel[k+2*j][2*i+1]);
//mag_sig[ind] = (short) rand();
mag_sig[ind] = (short)10*log10(1.0+((double)Re*Re + (double)Im*Im));
cum_avg += (short)sqrt((double)Re*Re + (double)Im*Im) ;
ind++;
}
}
}
//fl_set_xyplot_ybounds(form->channel_t_im,10,90);
fl_set_xyplot_data(form->channel_t_im,sig_time,mag_sig,ind,"","","");
*/
// channel_t_re = rx_sig_f[0]
//for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX; i++) {
for (i=0; i<NUMBER_OF_OFDM_CARRIERS*frame_parms->symbols_per_tti/2; i++) {
sig2[i] = 10*log10(1.0+(double) ((rx_sig_f[0][4*i])*(rx_sig_f[0][4*i])+(rx_sig_f[0][4*i+1])*(rx_sig_f[0][4*i+1])));
time2[i] = (float) i;
}
//fl_set_xyplot_ybounds(form->channel_t_re,10,90);
fl_set_xyplot_data(form->channel_t_re,time2,sig2,NUMBER_OF_OFDM_CARRIERS*frame_parms->symbols_per_tti,"","","");
//fl_set_xyplot_data(form->channel_t_re,time2,sig2,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,"","","");
// channel_t_im = rx_sig[0]
//if (frame_parms->nb_antennas_rx>1) {
for (i=0; i<FRAME_LENGTH_COMPLEX_SAMPLES; i++) {
//for (i=0; i<NUMBER_OF_OFDM_CARRIERS*frame_parms->symbols_per_tti/2; i++) {
sig2[i] = 10*log10(1.0+(double) ((rx_sig[0][2*i])*(rx_sig[0][2*i])+(rx_sig[0][2*i+1])*(rx_sig[0][2*i+1])));
time2[i] = (float) i;
}
//fl_set_xyplot_ybounds(form->channel_t_im,0,100);
//fl_set_xyplot_data(form->channel_t_im,&time2[640*12*6],&sig2[640*12*6],640*12,"","","");
fl_set_xyplot_data(form->channel_t_im,time2,sig2,FRAME_LENGTH_COMPLEX_SAMPLES,"","","");
//}
/*
// PBCH LLR
j=0;
for(i=0;i<1920;i++) {
llr[j] = (float) pbch_llr[i];
llr_time[j] = (float) j;
//if (i==63)
// i=127;
//else if (i==191)
// i=319;
j++;
}
fl_set_xyplot_data(form->decoder_input,llr_time,llr,1920,"","","");
//fl_set_xyplot_ybounds(form->decoder_input,-100,100);
// PBCH I/Q
j=0;
for(i=0;i<12*12;i++) {
I[j] = pbch_comp[2*i];
Q[j] = pbch_comp[2*i+1];
j++;
//if (i==47)
// i=96;
//else if (i==191)
// i=239;
}
fl_set_xyplot_data(form->scatter_plot,I,Q,12*12,"","","");
//fl_set_xyplot_xbounds(form->scatter_plot,-100,100);
//fl_set_xyplot_ybounds(form->scatter_plot,-100,100);
// PDCCH I/Q
j=0;
for(i=0;i<12*25*3;i++) {
I[j] = pdcch_comp[2*i];
Q[j] = pdcch_comp[2*i+1];
j++;
//if (i==47)
// i=96;
//else if (i==191)
// i=239;
}
fl_set_xyplot_data(form->scatter_plot1,I,Q,12*25*3,"","","");
//fl_set_xyplot_xbounds(form->scatter_plot,-100,100);
//fl_set_xyplot_ybounds(form->scatter_plot,-100,100);
*/
// DLSCH LLR
for(i=0; i<coded_bits_per_codeword; i++) {
llr[i] = (float) dlsch_llr[i];
llr_time[i] = (float) i;
}
fl_set_xyplot_data(form->demod_out,llr_time,llr,coded_bits_per_codeword,"","","");
fl_set_xyplot_ybounds(form->demod_out,-1000,1000);
// DLSCH I/Q
j=0;
for (s=0; s<frame_parms->symbols_per_tti; s++) {
for(i=0; i<12*25; i++) {
I[j] = dlsch_comp[(2*25*12*s)+2*i];
Q[j] = dlsch_comp[(2*25*12*s)+2*i+1];
j++;
}
//if (s==2)
// s=3;
//else if (s==5)
// s=6;
//else if (s==8)
// s=9;
}
fl_set_xyplot_data(form->scatter_plot,I,Q,j,"","","");
fl_set_xyplot_xbounds(form->scatter_plot,-2000,2000);
fl_set_xyplot_ybounds(form->scatter_plot,-2000,2000);
// DLSCH I/Q
j=0;
for (s=0; s<frame_parms->symbols_per_tti; s++) {
for(i=0; i<12*25; i++) {
I[j] = dlsch_comp_i[(2*25*12*s)+2*i];
Q[j] = dlsch_comp_i[(2*25*12*s)+2*i+1];
j++;
}
//if (s==2)
// s=3;
//else if (s==5)
// s=6;
//else if (s==8)
// s=9;
}
fl_set_xyplot_data(form->scatter_plot1,I,Q,j,"","","");
fl_set_xyplot_xbounds(form->scatter_plot1,-2000,2000);
fl_set_xyplot_ybounds(form->scatter_plot1,-2000,2000);
// DLSCH I/Q
j=0;
for (s=0; s<frame_parms->symbols_per_tti; s++) {
for(i=0; i<12*25; i++) {
I[j] = dlsch_rho[(2*25*12*s)+2*i];
Q[j] = dlsch_rho[(2*25*12*s)+2*i+1];
j++;
}
//if (s==2)
// s=3;
//else if (s==5)
// s=6;
//else if (s==8)
// s=9;
}
fl_set_xyplot_data(form->scatter_plot2,I,Q,j,"","","");
//fl_set_xyplot_xbounds(form->scatter_plot2,-1000,1000);
//fl_set_xyplot_ybounds(form->scatter_plot2,-1000,1000);
free(llr);
free(llr_time);
}
#endif
void lte_param_init(unsigned char N_tx, unsigned char N_rx,unsigned char transmission_mode,uint8_t extended_prefix_flag,uint8_t fdd_flag, uint16_t Nid_cell,uint8_t tdd_config,uint8_t N_RB_DL,
uint8_t osf)
{
LTE_DL_FRAME_PARMS *lte_frame_parms;
int i;
printf("Start lte_param_init\n");
PHY_vars_eNB = malloc(sizeof(PHY_VARS_eNB));
PHY_vars_UE = malloc(sizeof(PHY_VARS_UE));
//PHY_config = malloc(sizeof(PHY_CONFIG));
mac_xface = malloc(sizeof(MAC_xface));
randominit(0);
set_taus_seed(0);
lte_frame_parms = &(PHY_vars_eNB->lte_frame_parms);
lte_frame_parms->N_RB_DL = N_RB_DL; //50 for 10MHz and 25 for 5 MHz
lte_frame_parms->N_RB_UL = N_RB_DL;
lte_frame_parms->Ncp = extended_prefix_flag;
lte_frame_parms->Nid_cell = Nid_cell;
lte_frame_parms->nushift = 0;
lte_frame_parms->nb_antennas_tx = N_tx;
lte_frame_parms->nb_antennas_rx = N_rx;
lte_frame_parms->phich_config_common.phich_resource = oneSixth;
lte_frame_parms->tdd_config = tdd_config;
lte_frame_parms->frame_type = (fdd_flag==1)?0 : 1;
// lte_frame_parms->Csrs = 2;
// lte_frame_parms->Bsrs = 0;
// lte_frame_parms->kTC = 0;44
// lte_frame_parms->n_RRC = 0;
lte_frame_parms->mode1_flag = (transmission_mode == 1)? 1 : 0;
init_frame_parms(lte_frame_parms,osf);
//copy_lte_parms_to_phy_framing(lte_frame_parms, &(PHY_config->PHY_framing));
phy_init_top(lte_frame_parms); //allocation
lte_frame_parms->twiddle_fft = twiddle_fft;
lte_frame_parms->twiddle_ifft = twiddle_ifft;
lte_frame_parms->rev = rev;
PHY_vars_UE->is_secondary_ue = 0;
PHY_vars_UE->lte_frame_parms = *lte_frame_parms;
PHY_vars_eNB->lte_frame_parms = *lte_frame_parms;
phy_init_lte_top(lte_frame_parms);
dump_frame_parms(lte_frame_parms);
for (i=0; i<3; i++)
lte_gold(lte_frame_parms,PHY_vars_UE->lte_gold_table[i],i);
phy_init_lte_ue(PHY_vars_UE,0);
phy_init_lte_eNB(PHY_vars_eNB,0,0,0);
printf("Done lte_param_init\n");
}
//DCI2_5MHz_2A_M10PRB_TDD_t DLSCH_alloc_pdu2_2A[2];
DCI1E_5MHz_2A_M10PRB_TDD_t DLSCH_alloc_pdu2_1E[2];
#define UL_RB_ALLOC 0x1ff;
#define CCCH_RB_ALLOC computeRIV(PHY_vars_eNB->lte_frame_parms.N_RB_UL,0,2)
//#define DLSCH_RB_ALLOC 0x1fbf // ignore DC component,RB13
//#define DLSCH_RB_ALLOC 0x0001
void do_OFDM_mod(mod_sym_t **txdataF, int32_t **txdata, uint16_t next_slot, LTE_DL_FRAME_PARMS *frame_parms)
{
int aa, slot_offset, slot_offset_F;
#ifdef IFFT_FPGA
int32_t **txdataF2;
int i, l;
txdataF2 = (int32_t **)malloc(2*sizeof(int32_t*));
txdataF2[0] = (int32_t *)malloc(NUMBER_OF_OFDM_CARRIERS*((frame_parms->Ncp==1) ? 6 : 7)*sizeof(int32_t));
txdataF2[1] = (int32_t *)malloc(NUMBER_OF_OFDM_CARRIERS*((frame_parms->Ncp==1) ? 6 : 7)*sizeof(int32_t));
bzero(txdataF2[0],NUMBER_OF_OFDM_CARRIERS*((frame_parms->Ncp==1) ? 6 : 7)*sizeof(int32_t));
bzero(txdataF2[1],NUMBER_OF_OFDM_CARRIERS*((frame_parms->Ncp==1) ? 6 : 7)*sizeof(int32_t));
slot_offset_F = (next_slot)*(frame_parms->N_RB_DL*12)*((frame_parms->Ncp==1) ? 6 : 7);
slot_offset = (next_slot)*(frame_parms->samples_per_tti>>1);
//write_output("eNB_txsigF0.m","eNB_txsF0", lte_eNB_common_vars->txdataF[eNB_id][0],300*120,1,4);
//write_output("eNB_txsigF1.m","eNB_txsF1", lte_eNB_common_vars->txdataF[eNB_id][1],300*120,1,4);
// do talbe lookup and write results to txdataF2
for (aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
l = slot_offset_F;
for (i=0; i<NUMBER_OF_OFDM_CARRIERS*((frame_parms->Ncp==1) ? 6 : 7); i++)
if ((i%512>=1) && (i%512<=150))
txdataF2[aa][i] = ((int32_t*)mod_table)[txdataF[aa][l++]];
else if (i%512>=362)
txdataF2[aa][i] = ((int32_t*)mod_table)[txdataF[aa][l++]];
else
txdataF2[aa][i] = 0;
}
for (aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
if (frame_parms->Ncp == 1)
PHY_ofdm_mod(txdataF2[aa], // input
&txdata[aa][slot_offset], // output
frame_parms->log2_symbol_size, // log2_fft_size
6, // number of symbols
frame_parms->nb_prefix_samples, // number of prefix samples
frame_parms->twiddle_ifft, // IFFT twiddle factors
frame_parms->rev, // bit-reversal permutation
CYCLIC_PREFIX);
else {
normal_prefix_mod(txdataF2[aa],&txdata[aa][slot_offset],7,frame_parms);
}
}
free(txdataF2[0]);
free(txdataF2[1]);
free(txdataF2);
#else //IFFT_FPGA
slot_offset_F = (next_slot)*(frame_parms->ofdm_symbol_size)*((frame_parms->Ncp==1) ? 6 : 7);
slot_offset = (next_slot)*(frame_parms->samples_per_tti>>1);
for (aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
if (frame_parms->Ncp == 1)
PHY_ofdm_mod(&txdataF[aa][slot_offset_F], // input
&txdata[aa][slot_offset], // output
frame_parms->log2_symbol_size, // log2_fft_size
6, // number of symbols
frame_parms->nb_prefix_samples, // number of prefix samples
frame_parms->twiddle_ifft, // IFFT twiddle factors
frame_parms->rev, // bit-reversal permutation
CYCLIC_PREFIX);
else {
normal_prefix_mod(&txdataF[aa][slot_offset_F],
&txdata[aa][slot_offset],
7,
frame_parms);
}
}
#endif //IFFT_FPGA
}
int main(int argc, char **argv)
{
char c;
int k,i,aa,aarx,aatx;
int s,Kr,Kr_bytes;
double sigma2, sigma2_dB=10,SNR,snr0=-2.0,snr1,rate,saving_bler=1;
double snr_step=1,input_snr_step=1, snr_int=20;
LTE_DL_FRAME_PARMS *frame_parms;
double **s_re,**s_im,**r_re,**r_im;
double forgetting_factor=0.0; //in [0,1] 0 means a new channel every time, 1 means keep the same channel
double iqim=0.0;
uint8_t extended_prefix_flag=0,transmission_mode=1,n_tx=1,n_rx=1;
uint16_t Nid_cell=0;
int eNB_id = 0, eNB_id_i = NUMBER_OF_eNB_MAX;
unsigned char mcs,dual_stream_UE = 0,awgn_flag=0,round,dci_flag=0;
unsigned char i_mod = 2;
unsigned short NB_RB;
unsigned char Ns,l,m;
uint16_t tdd_config=3;
uint16_t n_rnti=0x1234;
int n_users = 1;
SCM_t channel_model=Rayleigh1;
// unsigned char *input_data,*decoded_output;
unsigned char *input_buffer[2];
unsigned short input_buffer_length;
unsigned int ret;
unsigned int coded_bits_per_codeword,nsymb,dci_cnt,tbs;
unsigned int tx_lev,tx_lev_dB,trials,errs[4]= {0,0,0,0},round_trials[4]= {0,0,0,0},dci_errors=0,dlsch_active=0,num_layers;
int re_allocated;
FILE *bler_fd;
char bler_fname[256];
FILE *tikz_fd;
char tikz_fname[256];
FILE *input_trch_fd;
unsigned char input_trch_file=0;
FILE *input_fd=NULL;
unsigned char input_file=0;
char input_val_str[50],input_val_str2[50];
char input_trch_val[16];
double pilot_sinr, abs_channel,channelx,channely;
// unsigned char pbch_pdu[6];
DCI_ALLOC_t dci_alloc[8],dci_alloc_rx[8];
int num_common_dci=0,num_ue_spec_dci=0,num_dci=0;
// FILE *rx_frame_file;
int n_frames;
int n_ch_rlz = 1;
//channel_desc_t *eNB2UE;
double snr;
uint8_t num_pdcch_symbols=3,num_pdcch_symbols_2=0;
uint8_t pilot1,pilot2,pilot3;
uint8_t rx_sample_offset = 0;
//char stats_buffer[4096];
//int len;
uint8_t num_rounds = 4,fix_rounds=0;
uint8_t subframe=6;
int u;
int abstx=0;
int iii;
FILE *csv_fd;
char csv_fname[512];
int ch_realization;
int pmi_feedback=0;
int hold_channel=0;
// void *data;
// int ii;
// int bler;
double blerr,uncoded_ber,avg_ber;
short *uncoded_ber_bit;
uint8_t N_RB_DL=25,osf=1;
int16_t amp;
uint8_t fdd_flag = 0;
//RELAY SIM PARAMETERS FOR NEW CHANNEL
#ifdef REL_AMPLIFY_FORWARD
//Number of relays
int nb_relays = 2;
int rel=0;
int active_relay_channel_id=0;
channel_desc_t *eNB2REL[nb_relays];
channel_desc_t *REL2UE[nb_relays];
unsigned int tx_lev_r1,tx_lev_r1_dB;
double SNR_r1;
double **rs_re,**rs_im, **dr_re, **dr_im;
//RELAYS TO UE PARAMETERS
double sigma2_r1, sigma2_r1_dB,SNR_r_array[nb_relays], SNR_array[nb_relays];
double alpha_SNR=1.0;
unsigned int rv_pattern[4] = {0,1,1,0};
double effective_rate, successfully_sent_frames=0, total_timeslots=0;
#else
//FOR POINT TO POINT CASE - THIS SIMULATES DLSIM, basically.
channel_desc_t *eNB2REL;
#endif
#ifdef XFORMS
FD_lte_scope *form;
char title[255];
#endif
uint32_t DLSCH_RB_ALLOC = 0x1fff;
signal(SIGSEGV, handler);
// default parameters
mcs = 0;
n_frames = 1000;
snr0 = 0;
num_layers = 1;
while ((c = getopt (argc, argv, "hadpDm:n:o:s:f:t:c:g:r:F:x:y:z:M:N:I:i:j:R:S:C:T:b:u:")) != -1) {
switch (c) {
case 'a':
awgn_flag = 1;
break;
case 'b':
tdd_config=atoi(optarg);
break;
case 'd':
dci_flag = 1;
break;
case 'm':
mcs = atoi(optarg);
break;
case 'n':
n_frames = atoi(optarg);
break;
case 'C':
Nid_cell = atoi(optarg);
break;
case 'o':
rx_sample_offset = atoi(optarg);
break;
case 'D':
fdd_flag = 1;
break;
case 'r':
DLSCH_RB_ALLOC = atoi(optarg);
break;
case 'F':
forgetting_factor = atof(optarg);
break;
case 's':
snr0 = atoi(optarg);
break;
case 't':
//Td= atof(optarg);
printf("Please use the -G option to select the channel model\n");
exit(-1);
break;
case 'f':
input_snr_step= atof(optarg);
break;
case 'M':
abstx= atof(optarg);
break;
case 'N':
n_ch_rlz= atof(optarg);
break;
case 'p':
extended_prefix_flag=1;
break;
case 'c':
num_pdcch_symbols=atoi(optarg);
break;
case 'g':
switch((char)*optarg) {
case 'A':
channel_model=SCM_A;
break;
case 'B':
channel_model=SCM_B;
break;
case 'C':
channel_model=SCM_C;
break;
case 'D':
channel_model=SCM_D;
break;
case 'E':
channel_model=EPA;
break;
case 'F':
channel_model=EVA;
break;
case 'G':
channel_model=ETU;
break;
case 'H':
channel_model=Rayleigh8;
break;
case 'I':
channel_model=Rayleigh1;
break;
case 'J':
channel_model=Rayleigh1_corr;
break;
case 'K':
channel_model=Rayleigh1_anticorr;
break;
case 'L':
channel_model=Rice8;
break;
case 'M':
channel_model=Rice1;
break;
default:
msg("Unsupported channel model!\n");
exit(-1);
}
break;
case 'x':
transmission_mode=atoi(optarg);
if ((transmission_mode!=1) &&
(transmission_mode!=2) &&
(transmission_mode!=5) &&
(transmission_mode!=6)) {
msg("Unsupported transmission mode %d\n",transmission_mode);
exit(-1);
}
break;
case 'y':
n_tx=atoi(optarg);
if ((n_tx==0) || (n_tx>2)) {
msg("Unsupported number of tx antennas %d\n",n_tx);
exit(-1);
}
break;
case 'z':
n_rx=atoi(optarg);
if ((n_rx==0) || (n_rx>2)) {
msg("Unsupported number of rx antennas %d\n",n_rx);
exit(-1);
}
break;
case 'I':
input_trch_fd = fopen(optarg,"r");
input_trch_file=1;
break;
case 'i':
input_fd = fopen(optarg,"r");
input_file=1;
dci_flag = 1;
break;
case 'R':
num_rounds=atoi(optarg);
fix_rounds=1;
break;
case 'S':
subframe=atoi(optarg);
break;
case 'T':
n_rnti=atoi(optarg);
break;
case 'u':
dual_stream_UE=atoi(optarg);
if ((n_tx!=2) || (transmission_mode!=5)) {
msg("Unsupported nb of decoded users: %d user(s), %d user(s) to decode\n", n_tx, dual_stream_UE);
exit(-1);
}
break;
case 'j':
alpha_SNR=atof(optarg);
break;
case 'h':
default:
printf("%s -h(elp) -a(wgn on) -d(ci decoding on) -p(extended prefix on) -m mcs -n n_frames -s snr0 -t Delayspread -x transmission mode (1,2,5,6) -y TXant -z RXant -I trch_file\n",argv[0]);
printf("-h This message\n");
printf("-a Use AWGN channel and not multipath\n");
printf("-c Number of PDCCH symbols\n");
printf("-m MCS\n");
printf("-d Transmit the DCI and compute its error statistics and the overall throughput\n");
printf("-p Use extended prefix mode\n");
printf("-n Number of frames to simulate\n");
printf("-o Sample offset for receiver\n");
printf("-s Starting SNR, runs from SNR to SNR+%.1fdB in steps of %.1fdB. If n_frames is 1 then just SNR is simulated and MATLAB/OCTAVE output is generated\n", snr_int, snr_step);
printf("-f step size of SNR, default value is 1.\n");
printf("-t Delay spread for multipath channel\n");
printf("-r Ricean factor (dB, 0 dB = Rayleigh, 100 dB = almost AWGN)\n");
printf("-g [A:M] Use 3GPP 25.814 SCM-A/B/C/D('A','B','C','D') or 36-101 EPA('E'), EVA ('F'),ETU('G') models (ignores delay spread and Ricean factor), Rayghleigh8 ('H'), Rayleigh1('I'), Rayleigh1_corr('J'), Rayleigh1_anticorr ('K'), Rice8('L'), Rice1('M')\n");
printf("-F forgetting factor (0 new channel every trial, 1 channel constant\n");
printf("-x Transmission mode (1,2,6 for the moment)\n");
printf("-y Number of TX antennas used in eNB\n");
printf("-z Number of RX antennas used in UE\n");
printf("-R Number of HARQ rounds (fixed)\n");
printf("-M Determines whether the Absraction flag is on or Off. 1-->On and 0-->Off. Default status is Off. \n");
printf("-N Determines the number of Channel Realizations in Absraction mode. Default value is 1. \n");
printf("-I Input filename for TrCH data (binary)\n");
printf("-u Determines if the 2 streams at the UE are decoded or not. 0-->U2 is interference only and 1-->U2 is detected\n");
printf("-j Value of alpha - Relay channel SNR coefficient.\n");
exit(1);
break;
}
}
NB_RB=conv_nprb(0,DLSCH_RB_ALLOC);
#ifdef XFORMS
fl_initialize (&argc, argv, NULL, 0, 0);
form = create_form_lte_scope();
sprintf (title, "LTE DLSIM SCOPE");
fl_show_form (form->lte_scope, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);
#endif
if (transmission_mode==5) {
n_users = 2;
printf("dual_stream_UE=%d\n", dual_stream_UE);
}
lte_param_init(n_tx,n_rx,transmission_mode,extended_prefix_flag,fdd_flag,Nid_cell,tdd_config,N_RB_DL,osf);
printf("Setting mcs = %d\n",mcs);
printf("NPRB = %d\n",NB_RB);
printf("n_frames = %d\n",n_frames);
printf("Transmission mode %d with %dx%d antenna configuration, Extended Prefix %d\n",transmission_mode,n_tx,n_rx,extended_prefix_flag);
snr1 = snr0+snr_int;
printf("SNR0 %f, SNR1 %f\n",snr0,snr1);
/*
txdataF = (int **)malloc16(2*sizeof(int*));
txdataF[0] = (int *)malloc16(FRAME_LENGTH_BYTES);
txdataF[1] = (int *)malloc16(FRAME_LENGTH_BYTES);
txdata = (int **)malloc16(2*sizeof(int*));
txdata[0] = (int *)malloc16(FRAME_LENGTH_BYTES);
txdata[1] = (int *)malloc16(FRAME_LENGTH_BYTES);
*/
frame_parms = &PHY_vars_eNB->lte_frame_parms;
s_re = malloc(2*sizeof(double*));
s_im = malloc(2*sizeof(double*));
r_re = malloc(2*sizeof(double*));
r_im = malloc(2*sizeof(double*));
// r_re0 = malloc(2*sizeof(double*));
// r_im0 = malloc(2*sizeof(double*));
#ifdef REL_AMPLIFY_FORWARD
rs_re = malloc(2*sizeof(double*));
rs_im = malloc(2*sizeof(double*));
dr_re = malloc(2*sizeof(double*));
dr_im = malloc(2*sizeof(double*));
#endif
nsymb = (PHY_vars_eNB->lte_frame_parms.Ncp == 0) ? 14 : 12;
printf("Channel Model=%d\n",channel_model);
printf("SCM-A=%d, SCM-B=%d, SCM-C=%d, SCM-D=%d, EPA=%d, EVA=%d, ETU=%d, Rayleigh8=%d, Rayleigh1=%d, Rayleigh1_corr=%d, Rayleigh1_anticorr=%d, Rice1=%d, Rice8=%d\n",
SCM_A, SCM_B, SCM_C, SCM_D, EPA, EVA, ETU, Rayleigh8, Rayleigh1, Rayleigh1_corr, Rayleigh1_anticorr, Rice1, Rice8);
sprintf(bler_fname,"relay_second_bler_tx%d_mcs%d_chan%d_alpha%f.csv",transmission_mode,mcs,channel_model,alpha_SNR);
bler_fd = fopen(bler_fname,"w");
fprintf(bler_fd,"SNR; MCS; TBS; rate; err0; trials0; err1; trials1; err2; trials2; err3; trials3; dci_err\n");
if(abstx) {
// CSV file
sprintf(csv_fname,"dataout_tx%d_u2%d_mcs%d_chan%d_nsimus%d.m",transmission_mode,dual_stream_UE,mcs,channel_model,n_frames);
csv_fd = fopen(csv_fname,"w");
fprintf(csv_fd,"data_all%d=[",mcs);
}
//sprintf(tikz_fname, "second_bler_tx%d_u2=%d_mcs%d_chan%d_nsimus%d.tex",transmission_mode,dual_stream_UE,mcs,channel_model,n_frames);
//sprintf(tikz_fname, "second_bler_tx%d_u2%d_mcs%d_chan%d_nsimus%d",transmission_mode,dual_stream_UE,mcs,channel_model,n_frames);
#ifdef SINGLE_RELAY
//sprintf(tikz_fname, "/home/emre/Projects/openair/results/results_relay_sim/channel_%d/SR_effectiveRate_tx%d_u2=%d_mcs%d_nsimus%d_alpha%f",channel_model,transmission_mode,dual_stream_UE,mcs,n_frames,alpha_SNR);
#else
//sprintf(tikz_fname, "/home/emre/Projects/openair/results/results_relay_sim/channel_%d/effectiveRate_tx%d_u2=%d_mcs%d_nsimus%d_alpha%f",channel_model,transmission_mode,dual_stream_UE,mcs,n_frames,alpha_SNR);
#endif
tikz_fd = fopen(tikz_fname,"w");
//fprintf(tikz_fd,"\\addplot[color=red, mark=o] plot coordinates {");
switch (mcs) {
case 0:
fprintf(tikz_fd,"\\addplot[color=blue, mark=star] plot coordinates {");
break;
case 1:
fprintf(tikz_fd,"\\addplot[color=red, mark=star] plot coordinates {");
break;
case 2:
fprintf(tikz_fd,"\\addplot[color=green, mark=star] plot coordinates {");
break;
case 3:
fprintf(tikz_fd,"\\addplot[color=yellow, mark=star] plot coordinates {");
break;
case 4:
fprintf(tikz_fd,"\\addplot[color=black, mark=star] plot coordinates {");
break;
case 5:
fprintf(tikz_fd,"\\addplot[color=blue, mark=o] plot coordinates {");
break;
case 6:
fprintf(tikz_fd,"\\addplot[color=red, mark=o] plot coordinates {");
break;
case 7:
fprintf(tikz_fd,"\\addplot[color=green, mark=o] plot coordinates {");
break;
case 8:
fprintf(tikz_fd,"\\addplot[color=yellow, mark=o] plot coordinates {");
break;
case 9:
fprintf(tikz_fd,"\\addplot[color=black, mark=o] plot coordinates {");
break;
case 10:
fprintf(tikz_fd,"\\addplot[color=blue, mark=square] plot coordinates {");
break;
case 11:
fprintf(tikz_fd,"\\addplot[color=red, mark=square] plot coordinates {");
break;
case 12:
fprintf(tikz_fd,"\\addplot[color=green, mark=square] plot coordinates {");
break;
case 13:
fprintf(tikz_fd,"\\addplot[color=yellow, mark=square] plot coordinates {");
break;
case 14:
fprintf(tikz_fd,"\\addplot[color=black, mark=square] plot coordinates {");
break;
case 15:
fprintf(tikz_fd,"\\addplot[color=blue, mark=diamond] plot coordinates {");
break;
case 16:
fprintf(tikz_fd,"\\addplot[color=red, mark=diamond] plot coordinates {");
break;
case 17:
fprintf(tikz_fd,"\\addplot[color=green, mark=diamond] plot coordinates {");
break;
case 18:
fprintf(tikz_fd,"\\addplot[color=yellow, mark=diamond] plot coordinates {");
break;
case 19:
fprintf(tikz_fd,"\\addplot[color=black, mark=diamond] plot coordinates {");
break;
case 20:
fprintf(tikz_fd,"\\addplot[color=blue, mark=x] plot coordinates {");
break;
case 21:
fprintf(tikz_fd,"\\addplot[color=red, mark=x] plot coordinates {");
break;
case 22:
fprintf(tikz_fd,"\\addplot[color=green, mark=x] plot coordinates {");
break;
case 23:
fprintf(tikz_fd,"\\addplot[color=yellow, mark=x] plot coordinates {");
break;
case 24:
fprintf(tikz_fd,"\\addplot[color=black, mark=x] plot coordinates {");
break;
case 25:
fprintf(tikz_fd,"\\addplot[color=blue, mark=x] plot coordinates {");
break;
case 26:
fprintf(tikz_fd,"\\addplot[color=red, mark=+] plot coordinates {");
break;
case 27:
fprintf(tikz_fd,"\\addplot[color=green, mark=+] plot coordinates {");
break;
case 28:
fprintf(tikz_fd,"\\addplot[color=yellow, mark=+] plot coordinates {");
break;
}
for (i=0; i<2; i++) {
s_re[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
s_im[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
r_re[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
r_im[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
// r_re0[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
// bzero(r_re0[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
// r_im0[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
// bzero(r_im0[i],FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
#ifdef REL_AMPLIFY_FORWARD
rs_re[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
rs_im[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
dr_re[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
dr_im[i] = malloc(FRAME_LENGTH_COMPLEX_SAMPLES*sizeof(double));
#endif
}
PHY_vars_UE->lte_ue_pdcch_vars[0]->crnti = n_rnti;
// Fill in UL_alloc
UL_alloc_pdu.type = 0;
UL_alloc_pdu.hopping = 0;
UL_alloc_pdu.rballoc = UL_RB_ALLOC;
UL_alloc_pdu.mcs = 1;
UL_alloc_pdu.ndi = 1;
UL_alloc_pdu.TPC = 0;
UL_alloc_pdu.cqi_req = 1;
CCCH_alloc_pdu.type = 0;
CCCH_alloc_pdu.vrb_type = 0;
CCCH_alloc_pdu.rballoc = CCCH_RB_ALLOC;
CCCH_alloc_pdu.ndi = 1;
CCCH_alloc_pdu.mcs = 1;
CCCH_alloc_pdu.harq_pid = 0;
DLSCH_alloc_pdu2_1E[0].rah = 0;
DLSCH_alloc_pdu2_1E[0].rballoc = DLSCH_RB_ALLOC;
DLSCH_alloc_pdu2_1E[0].TPC = 0;
DLSCH_alloc_pdu2_1E[0].dai = 0;
DLSCH_alloc_pdu2_1E[0].harq_pid = 0;
//DLSCH_alloc_pdu2_1E[0].tb_swap = 0;
DLSCH_alloc_pdu2_1E[0].mcs = mcs;
DLSCH_alloc_pdu2_1E[0].ndi = 1;
DLSCH_alloc_pdu2_1E[0].rv = 0;
// Forget second codeword
DLSCH_alloc_pdu2_1E[0].tpmi = (transmission_mode>=5 ? 5 : 0); // precoding
DLSCH_alloc_pdu2_1E[0].dl_power_off = (transmission_mode==5 ? 0 : 1);
DLSCH_alloc_pdu2_1E[1].rah = 0;
DLSCH_alloc_pdu2_1E[1].rballoc = DLSCH_RB_ALLOC;
DLSCH_alloc_pdu2_1E[1].TPC = 0;
DLSCH_alloc_pdu2_1E[1].dai = 0;
DLSCH_alloc_pdu2_1E[1].harq_pid = 0;
//DLSCH_alloc_pdu2_1E[1].tb_swap = 0;
DLSCH_alloc_pdu2_1E[1].mcs = mcs;
DLSCH_alloc_pdu2_1E[1].ndi = 1;
DLSCH_alloc_pdu2_1E[1].rv = 0;
// Forget second codeword
DLSCH_alloc_pdu2_1E[1].tpmi = (transmission_mode>=5 ? 5 : 0) ; // precoding
DLSCH_alloc_pdu2_1E[1].dl_power_off = (transmission_mode==5 ? 0 : 1);
#ifdef REL_AMPLIFY_FORWARD
for (rel = 0; rel < nb_relays; rel++) {
REL2UE[rel] = new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,
PHY_vars_UE->lte_frame_parms.nb_antennas_rx,
channel_model,
BW,
forgetting_factor,
rx_sample_offset,
0);
eNB2REL[rel]= new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,
PHY_vars_UE->lte_frame_parms.nb_antennas_rx,
channel_model,
BW,
forgetting_factor,
rx_sample_offset,
0);
if (eNB2REL[rel]==NULL || REL2UE[rel]==NULL) {
msg("[RELAY] Problem generating channel model. Exiting.\n");
exit(-1);
}
random_channel(REL2UE[rel]);
random_channel(eNB2REL[rel]);
}
#else
eNB2REL = new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,
PHY_vars_UE->lte_frame_parms.nb_antennas_rx,
channel_model,
BW,
forgetting_factor,
rx_sample_offset,
0);
if (eNB2REL==NULL) {
msg("Problem generating channel model. Exiting.\n");
exit(-1);
}
random_channel(eNB2REL);
#endif
for (k=0; k<n_users; k++) {
// Create transport channel structures for 2 transport blocks (MIMO)
for (i=0; i<2; i++) {
PHY_vars_eNB->dlsch_eNB[k][i] = new_eNB_dlsch(1,8,0);
if (!PHY_vars_eNB->dlsch_eNB[k][i]) {
printf("Can't get eNB dlsch structures\n");
exit(-1);
}
PHY_vars_eNB->dlsch_eNB[k][i]->rnti = n_rnti+k;
}
}
for (i=0; i<2; i++) {
PHY_vars_UE->dlsch_ue[0][i] = new_ue_dlsch(1,8,0);
if (!PHY_vars_UE->dlsch_ue[0][i]) {
printf("Can't get ue dlsch structures\n");
exit(-1);
}
PHY_vars_UE->dlsch_ue[0][i]->rnti = n_rnti;
}
if (DLSCH_alloc_pdu2_1E[0].tpmi == 5) {
PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single = (unsigned short)(taus()&0xffff);
if (n_users>1)
PHY_vars_eNB->eNB_UE_stats[1].DL_pmi_single = (PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single ^ 0x1555); //opposite PMI
} else {
PHY_vars_eNB->eNB_UE_stats[0].DL_pmi_single = 0;
if (n_users>1)
PHY_vars_eNB->eNB_UE_stats[1].DL_pmi_single = 0;
}
if (input_fd==NULL) {
for(k=0; k<n_users; k++) {
printf("Generating dlsch params for user %d\n",k);
generate_eNB_dlsch_params_from_dci(0,
&DLSCH_alloc_pdu2_1E[k],
n_rnti+k,
format1E_2A_M10PRB,
PHY_vars_eNB->dlsch_eNB[k],
&PHY_vars_eNB->lte_frame_parms,
SI_RNTI,
0,
P_RNTI,
PHY_vars_eNB->eNB_UE_stats[k].DL_pmi_single);
}
num_dci = 0;
num_ue_spec_dci = 0;
num_common_dci = 0;
/*
// common DCI
memcpy(&dci_alloc[num_dci].dci_pdu[0],&CCCH_alloc_pdu,sizeof(DCI1A_5MHz_TDD_1_6_t));
dci_alloc[num_dci].dci_length = sizeof_DCI1A_5MHz_TDD_1_6_t;
dci_alloc[num_dci].L = 2;
dci_alloc[num_dci].rnti = SI_RNTI;
num_dci++;
num_common_dci++;
*/
// UE specific DCI
for(k=0; k<n_users; k++) {
memcpy(&dci_alloc[num_dci].dci_pdu[0],&DLSCH_alloc_pdu2_1E[k],sizeof(DCI1E_5MHz_2A_M10PRB_TDD_t));
dci_alloc[num_dci].dci_length = sizeof_DCI1E_5MHz_2A_M10PRB_TDD_t;
dci_alloc[num_dci].L = 2;
dci_alloc[num_dci].rnti = n_rnti+k;
dci_alloc[num_dci].format = format1E_2A_M10PRB;
dump_dci(&PHY_vars_eNB->lte_frame_parms,&dci_alloc[num_dci]);
num_dci++;
num_ue_spec_dci++;
/*
memcpy(&dci_alloc[1].dci_pdu[0],&UL_alloc_pdu,sizeof(DCI0_5MHz_TDD0_t));
dci_alloc[1].dci_length = sizeof_DCI0_5MHz_TDD_0_t;
dci_alloc[1].L = 2;
dci_alloc[1].rnti = n_rnti;
*/
}
for (k=0; k<n_users; k++) {
input_buffer_length = PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->TBS/8;
input_buffer[k] = (unsigned char *)malloc(input_buffer_length+4);
memset(input_buffer[k],0,input_buffer_length+4);
if (input_trch_file==0) {
for (i=0; i<input_buffer_length; i++) {
input_buffer[k][i]= (unsigned char)(taus()&0xff);
}
}
else {
i=0;
while ((!feof(input_trch_fd)) && (i<input_buffer_length<<3)) {
fscanf(input_trch_fd,"%s",input_trch_val);
if (input_trch_val[0] == '1')
input_buffer[k][i>>3]+=(1<<(7-(i&7)));
if (i<16)
printf("input_trch_val %d : %c\n",i,input_trch_val[0]);
i++;
if (((i%8) == 0) && (i<17))
printf("%x\n",input_buffer[k][(i-1)>>3]);
}
printf("Read in %d bits\n",i);
}
}
}
snr_step = input_snr_step;
for (ch_realization=0; ch_realization<n_ch_rlz; ch_realization++) {
if(abstx) {
printf("**********************Channel Realization Index = %d **************************\n", ch_realization);
saving_bler=1;
}
for (SNR_array[0]=snr0; SNR_array[0]<snr1; SNR_array[0]+=snr_step) {
errs[0]=0;
errs[1]=0;
errs[2]=0;
errs[3]=0;
round_trials[0] = 0;
round_trials[1] = 0;
round_trials[2] = 0;
round_trials[3] = 0;
dci_errors=0;
avg_ber = 0;
round=0;
for (trials = 0; trials<n_frames; trials++) {
// printf("Trial %d\n",trials);
fflush(stdout);
round=0;
for (rel = 0; rel < nb_relays; rel++) {
random_channel(REL2UE[rel]);
random_channel(eNB2REL[rel]);
}
//if (trials%100==0)
eNB2REL[active_relay_channel_id]->first_run = 1;
while (round < num_rounds) {
round_trials[round]++;
//CH0OSE THE ACTIVE LINK USING THE round VARIABLE.
//Odd rounds to SNR[0], Even rounds to SNR[1].
#ifdef SINGLE_RELAY
if(round%2==0 || round%2==1) {
#else
if(round%2==0) {
#endif
SNR = SNR_array[0];
active_relay_channel_id = 0;
} else {
SNR = alpha_SNR * SNR_array[0];
active_relay_channel_id = 1;
}
if(n_frames<10) {
printf("[Relay] Trial: %d, Active relay channel: %d \n",trials,active_relay_channel_id);
}
if(transmission_mode>=5)
pmi_feedback=1;
else
pmi_feedback=0;
if (abstx) {
if (trials==0 && round==0 && SNR==snr0) //generate a new channel
hold_channel = 0;
else
hold_channel = 1;
} else
hold_channel = 0;
PMI_FEEDBACK:
// printf("Trial %d : Round %d, pmi_feedback %d \n",trials,round,pmi_feedback);
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
#ifdef IFFT_FPGA
memset(&PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][aa][0],0,NUMBER_OF_USEFUL_CARRIERS*NUMBER_OF_SYMBOLS_PER_FRAME*sizeof(mod_sym_t));
#else
memset(&PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][aa][0],0,FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX*sizeof(mod_sym_t));
#endif
}
if (input_fd==NULL) {
// Simulate HARQ procedures!!!
if (round == 0) { // First round, set Ndi to 1 and rv to floor(round/2)
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->Ndi = 1;
#ifdef RVI_PATTERN_ALT
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = rv_pattern[round];
DLSCH_alloc_pdu2_1E[0].rv = rv_pattern[round];
#else
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = round>>1;
DLSCH_alloc_pdu2_1E[0].rv = 0;
#endif
DLSCH_alloc_pdu2_1E[0].ndi = 1;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu2_1E[0],sizeof(DCI1E_5MHz_2A_M10PRB_TDD_t));
} else { // set Ndi to 0
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->Ndi = 0;
#ifdef RVI_PATTERN_ALT
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = rv_pattern[round];
DLSCH_alloc_pdu2_1E[0].rv = rv_pattern[round];
#else
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->rvidx = round>>1;
DLSCH_alloc_pdu2_1E[0].rv = round>>1;
#endif
DLSCH_alloc_pdu2_1E[0].ndi = 0;
memcpy(&dci_alloc[0].dci_pdu[0],&DLSCH_alloc_pdu2_1E[0],sizeof(DCI1E_5MHz_2A_M10PRB_TDD_t));
}
num_pdcch_symbols_2 = generate_dci_top(num_ue_spec_dci,
num_common_dci,
dci_alloc,
0,
1024,
&PHY_vars_eNB->lte_frame_parms,
PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
subframe);
if (num_pdcch_symbols_2 > num_pdcch_symbols) {
msg("Error: given num_pdcch_symbols not big enough\n");
exit(-1);
}
for (k=0; k<n_users; k++) {
coded_bits_per_codeword = get_G(&PHY_vars_eNB->lte_frame_parms,
PHY_vars_eNB->dlsch_eNB[k][0]->nb_rb,
PHY_vars_eNB->dlsch_eNB[k][0]->rb_alloc,
get_Qm(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs),
num_pdcch_symbols,
subframe);
#ifdef TBS_FIX // This is for MESH operation!!!
tbs = (double)3*dlsch_tbs25[get_I_TBS(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs)][PHY_vars_eNB->dlsch_eNB[k][0]->nb_rb-1]/4;
#else
tbs = (double)dlsch_tbs25[get_I_TBS(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs)][PHY_vars_eNB->dlsch_eNB[k][0]->nb_rb-1];
#endif
rate = (double)tbs/(double)coded_bits_per_codeword; // bits per dimension
rate *= get_Qm(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs); //bits
uncoded_ber_bit = (short*) malloc(2*coded_bits_per_codeword);
if (trials==0 && round==0)
printf("Rate = %f (G %d, TBS %d, mod %d, pdcch_sym %d)\n",
rate,
coded_bits_per_codeword,
tbs,
get_Qm(PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->mcs),
num_pdcch_symbols);
/*
// generate channel here
random_channel(eNB2UE);
// generate frequency response
freq_channel(eNB2UE,NB_RB);
// generate PMI from channel
*/
// use the PMI from previous trial
if (DLSCH_alloc_pdu2_1E[0].tpmi == 5) {
PHY_vars_eNB->dlsch_eNB[0][0]->pmi_alloc = quantize_subband_pmi(&PHY_vars_UE->PHY_measurements,0);
PHY_vars_UE->dlsch_ue[0][0]->pmi_alloc = quantize_subband_pmi(&PHY_vars_UE->PHY_measurements,0);
if (n_users>1)
PHY_vars_eNB->dlsch_eNB[1][0]->pmi_alloc = (PHY_vars_eNB->dlsch_eNB[0][0]->pmi_alloc ^ 0x1555);
/*
if ((trials<10) && (round==0)) {
printf("tx PMI UE0 %x (pmi_feedback %d)\n",pmi2hex_2Ar1(PHY_vars_eNB->dlsch_eNB[0][0]->pmi_alloc),pmi_feedback);
if (transmission_mode ==5)
printf("tx PMI UE1 %x\n",pmi2hex_2Ar1(PHY_vars_eNB->dlsch_eNB[1][0]->pmi_alloc));
}
*/
}
if (dlsch_encoding(input_buffer[k],
&PHY_vars_eNB->lte_frame_parms,
num_pdcch_symbols,
PHY_vars_eNB->dlsch_eNB[k][0],
subframe)<0)
exit(-1);
// printf("Did not Crash here 1\n");
PHY_vars_eNB->dlsch_eNB[k][0]->rnti = n_rnti+k;
dlsch_scrambling(&PHY_vars_eNB->lte_frame_parms,
num_pdcch_symbols,
PHY_vars_eNB->dlsch_eNB[k][0],
coded_bits_per_codeword,
0,
subframe<<1);
if (n_frames==1) {
for (s=0; s<PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->C; s++) {
if (s<PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->Cminus)
Kr = PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->Kminus;
else
Kr = PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->Kplus;
Kr_bytes = Kr>>3;
for (i=0; i<Kr_bytes; i++)
printf("%d : (%x)\n",i,PHY_vars_eNB->dlsch_eNB[k][0]->harq_processes[0]->c[s][i]);
}
}
// printf("Did not Crash here 2\n");
if (transmission_mode == 5) {
amp = (int16_t)(((int32_t)1024*ONE_OVER_SQRT2_Q15)>>15);
} else
amp = 1024;
// if (k==1)
// amp=0;
re_allocated = dlsch_modulation(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
amp,
subframe,
&PHY_vars_eNB->lte_frame_parms,
num_pdcch_symbols,
PHY_vars_eNB->dlsch_eNB[k][0]);
// printf("Did not Crash here 3\n");
if (trials==0 && round==0)
printf("RE count %d\n",re_allocated);
if (num_layers>1)
re_allocated = dlsch_modulation(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
1024,
subframe,
&PHY_vars_eNB->lte_frame_parms,
num_pdcch_symbols,
PHY_vars_eNB->dlsch_eNB[k][1]);
} //n_users
// printf("Did not Crash here 4\n");
generate_pilots(PHY_vars_eNB,
PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
1024,
LTE_NUMBER_OF_SUBFRAMES_PER_FRAME);
do_OFDM_mod(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id],
(subframe*2),
&PHY_vars_eNB->lte_frame_parms);
do_OFDM_mod(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id],
(subframe*2)+1,
&PHY_vars_eNB->lte_frame_parms);
do_OFDM_mod(PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id],
PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id],
(subframe*2)+2,
&PHY_vars_eNB->lte_frame_parms);
#ifdef IFFT_FPGA
if (n_frames==1) {
write_output("txsigF0.m","txsF0", &PHY_vars_eNB->lte_eNB_common_vars.txdataF[0][0][subframe*nsymb*300],300*nsymb,1,4);
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
write_output("txsigF1.m","txsF1", &PHY_vars_eNB->lte_eNB_common_vars.txdataF[0][1][subframe*nsymb*300],300*nsymb,1,4);
write_output("txsigF20.m","txsF20", txdataF2[0], FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,1);
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
write_output("txsigF21.m","txsF21", txdataF2[1], FRAME_LENGTH_COMPLEX_SAMPLES_NO_PREFIX,1,1);
}
#else //IFFT_FPGA
if (n_frames==1) {
write_output("txsigF0.m","txsF0", &PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][0][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size],
nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size,1,1);
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
write_output("txsigF1.m","txsF1", &PHY_vars_eNB->lte_eNB_common_vars.txdataF[eNB_id][1][subframe*nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size],
nsymb*PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size,1,1);
}
#endif
tx_lev = 0;
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
tx_lev += signal_energy(&PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]
[subframe*PHY_vars_eNB->lte_frame_parms.samples_per_tti],
PHY_vars_eNB->lte_frame_parms.samples_per_tti);
}
tx_lev_dB = (unsigned int) dB_fixed(tx_lev);
if (n_frames==1) {
printf("tx_lev = %d (%d dB)\n",tx_lev,tx_lev_dB);
write_output("txsig0.m","txs0", &PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][0][subframe* PHY_vars_eNB->lte_frame_parms.samples_per_tti],
PHY_vars_eNB->lte_frame_parms.samples_per_tti,1,1);
}
}
/*
else { // Read signal from file
i=0;
while (!feof(input_fd)) {
fscanf(input_fd,"%s %s",input_val_str,input_val_str2);
if ((i%4)==0) {
((short*)txdata[0])[i/2] = (short)((1<<15)*strtod(input_val_str,NULL));
((short*)txdata[0])[(i/2)+1] = (short)((1<<15)*strtod(input_val_str2,NULL));
if ((i/4)<100)
printf("sample %d => %e + j%e (%d +j%d)\n",i/4,strtod(input_val_str,NULL),strtod(input_val_str2,NULL),((short*)txdata[0])[i/4],((short*)txdata[0])[(i/4)+1]);//1,input_val2,);
}
i++;
if (i>(FRAME_LENGTH_SAMPLES))
break;
}
printf("Read in %d samples\n",i/4);
write_output("txsig0.m","txs0", txdata[0],2*frame_parms->samples_per_tti,1,1);
// write_output("txsig1.m","txs1", txdata[1],FRAME_LENGTH_COMPLEX_SAMPLES,1,1);
tx_lev = signal_energy(&txdata[0][0],
OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES);
tx_lev_dB = (unsigned int) dB_fixed(tx_lev);
}
*/
// printf("Copying tx ..., nsymb %d (n_tx %d), awgn %d\n",nsymb,PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,awgn_flag);
for (i=0; i<2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES; i++) {
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_tx; aa++) {
if (awgn_flag == 0) {
s_re[aa][i] = ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) + (i<<1)]);
s_im[aa][i] = ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)+1]);
} else {
for (aarx=0; aarx<PHY_vars_UE->lte_frame_parms.nb_antennas_rx; aarx++) {
if (aa==0) {
r_re[aarx][i] = ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)]);
r_im[aarx][i] = ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)+1]);
} else {
r_re[aarx][i] += ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)]);
r_im[aarx][i] += ((double)(((short *)PHY_vars_eNB->lte_eNB_common_vars.txdata[eNB_id][aa]))[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti) +(i<<1)+1]);
}
}
}
}
}
//Multipath channel
if (awgn_flag == 0) {
multipath_channel(eNB2REL[active_relay_channel_id],s_re,s_im,r_re,r_im,
2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,hold_channel);
}
if(abstx) {
if(saving_bler==0)
if (trials==0 && round==0) {
// calculate freq domain representation to compute SINR
freq_channel(eNB2REL[active_relay_channel_id], 25,51);
// snr=pow(10.0,.1*SNR);
fprintf(csv_fd,"%f,",SNR);
for (u=0; u<50; u++) {
for (aarx=0; aarx<eNB2REL[active_relay_channel_id]->nb_rx; aarx++) {
for (aatx=0; aatx<eNB2REL[active_relay_channel_id]->nb_tx; aatx++) {
// abs_channel = (eNB2REL[active_relay_channel_id]->chF[aarx+(aatx*eNB2REL[active_relay_channel_id]->nb_rx)][u].x*eNB2REL[active_relay_channel_id]->chF[aarx+(aatx*eNB2REL[active_relay_channel_id]->nb_rx)][u].x + eNB2REL[active_relay_channel_id]->chF[aarx+(aatx*eNB2REL[active_relay_channel_id]->nb_rx)][u].y*eNB2REL[active_relay_channel_id]->chF[aarx+(aatx*eNB2REL[active_relay_channel_id]->nb_rx)][u].y);
channelx = eNB2REL[active_relay_channel_id]->chF[aarx+(aatx*eNB2REL[active_relay_channel_id]->nb_rx)][u].x;
channely = eNB2REL[active_relay_channel_id]->chF[aarx+(aatx*eNB2REL[active_relay_channel_id]->nb_rx)][u].y;
// if(transmission_mode==5){
fprintf(csv_fd,"%e+i*(%e),",channelx,channely);
// }
// else{
// pilot_sinr = 10*log10(snr*abs_channel);
// fprintf(csv_fd,"%e,",pilot_sinr);
// }
}
}
}
}
}
//AWGN
sigma2_dB = 10*log10((double)tx_lev) +10*log10(PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size/(NB_RB*12)) - SNR;
sigma2 = pow(10,sigma2_dB/10);
if (n_frames==1)
printf("Sigma2 %f (sigma2_dB %f)\n",sigma2,sigma2_dB);
for (i=0; i<2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES; i++) {
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_rx; aa++) {
#ifdef REL_AMPLIFY_FORWARD
//KEEP THE NOISE ADDED SIGNAL STRUCTURES FOR SECOND CHANNEL INPUT
rs_re[aa][i] = (r_re[aa][i] + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
rs_im[aa][i] = (r_im[aa][i] + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
#else
//printf("s_re[0][%d]=> %f , r_re[0][%d]=> %f\n",i,s_re[aa][i],i,r_re[aa][i]);
((short*) PHY_vars_UE->lte_ue_common_vars.rxdata[aa])[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti)+2*i] =
(short) (r_re[aa][i] + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
((short*) PHY_vars_UE->lte_ue_common_vars.rxdata[aa])[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti)+2*i+1] =
(short) (r_im[aa][i] + (iqim*r_re[aa][i]) + sqrt(sigma2/2)*gaussdouble(0.0,1.0));
#endif
}
}
//ADD SECOND CHANNEL EFFECTS FROM RELAY TO DESTINATION
#ifdef REL_AMPLIFY_FORWARD
//Second link noise variables
if(active_relay_channel_id == 0) {
SNR_r1 = alpha_SNR*SNR;
} else if(active_relay_channel_id == 1) {
SNR_r1 = SNR;
} else {
printf("Error in active relay selection..Should be 1 or 0.\n");
}
tx_lev_r1 = signal_energy_fp(rs_re,rs_im,PHY_vars_eNB->lte_frame_parms.nb_antennas_rx,PHY_vars_eNB->lte_frame_parms.samples_per_tti,0);
tx_lev_r1_dB = (unsigned int) dB_fixed(tx_lev_r1);
sigma2_r1_dB = 10*log10((double)tx_lev_r1) +10*log10(PHY_vars_eNB->lte_frame_parms.ofdm_symbol_size/(NB_RB*12)) - SNR_r1;
//AWGN
sigma2_r1 = pow(10,sigma2_r1_dB/10);
//printf("[RELAY CHANNEL] sigma2_r1: [%f] dB\n",sigma2_r1_dB);
if (awgn_flag == 0) {
//printf("[RELAY CHANNEL] Second channel multipath is added here - 2!\n");
multipath_channel(REL2UE[active_relay_channel_id],rs_re,rs_im,dr_re,dr_im,2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,hold_channel);
}
//printf("[RELAY CHANNEL] Second channel noise is added here!\n");
for (i=0; i<2*nsymb*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES; i++) {
for (aa=0; aa<PHY_vars_eNB->lte_frame_parms.nb_antennas_rx; aa++) {
// printf("s_re[0][%d]=> %f , r_re[0][%d]=> %f\n",i,s_re[aa][i],i,r_re[aa][i]);
((short*) PHY_vars_UE->lte_ue_common_vars.rxdata[aa])[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti)+2*i] = (short) (dr_re[aa][i] + sqrt(sigma2_r1/2)*gaussdouble(0.0,1.0));
((short*) PHY_vars_UE->lte_ue_common_vars.rxdata[aa])[(2*subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti)+2*i+1] = (short) (dr_im[aa][i] + (iqim*dr_re[aa][i]) + sqrt(sigma2_r1/2)*gaussdouble(
0.0,1.0));
}
}
#endif
// lte_sync_time_init(PHY_vars_eNB->lte_frame_parms,lte_ue_common_vars);
// lte_sync_time(lte_ue_common_vars->rxdata, PHY_vars_eNB->lte_frame_parms);
// lte_sync_time_free();
/*
// optional: read rx_frame from file
if ((rx_frame_file = fopen("rx_frame.dat","r")) == NULL)
{
printf("Cannot open rx_frame.m data file\n");
exit(0);
}
result = fread((void *)PHY_vars->rx_vars[0].RX_DMA_BUFFER,4,FRAME_LENGTH_COMPLEX_SAMPLES,rx_frame_file);
printf("Read %d bytes\n",result);
result = fread((void *)PHY_vars->rx_vars[1].RX_DMA_BUFFER,4,FRAME_LENGTH_COMPLEX_SAMPLES,rx_frame_file);
printf("Read %d bytes\n",result);
fclose(rx_frame_file);
*/
if (n_frames==1) {
printf("RX level in null symbol %d\n",dB_fixed(signal_energy(&PHY_vars_UE->lte_ue_common_vars.rxdata[0][160+OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)));
printf("RX level in data symbol %d\n",dB_fixed(signal_energy(&PHY_vars_UE->lte_ue_common_vars.rxdata[0][160+(2*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES)],OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2)));
printf("rx_level Null symbol %f\n",10*log10(signal_energy_fp(r_re,r_im,1,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2,256+(OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES))));
printf("rx_level data symbol %f\n",10*log10(signal_energy_fp(r_re,r_im,1,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES/2,256+(2*OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES))));
}
if (PHY_vars_eNB->lte_frame_parms.Ncp == 0) { // normal prefix
pilot1 = 4;
pilot2 = 7;
pilot3 = 11;
} else { // extended prefix
pilot1 = 3;
pilot2 = 6;
pilot3 = 9;
}
i_mod = get_Qm(mcs);
// Inner receiver scheduling for 3 slots
for (Ns=(2*subframe); Ns<((2*subframe)+3); Ns++) {
for (l=0; l<pilot2; l++) {
if (n_frames==1)
printf("Ns %d, l %d\n",Ns,l);
/*
This function implements the OFDM front end processor (FEP).
Parameters:
frame_parms LTE DL Frame Parameters
ue_common_vars LTE UE Common Vars
l symbol within slot (0..6/7)
Ns Slot number (0..19)
sample_offset offset within rxdata (points to beginning of subframe)
no_prefix if 1 prefix is removed by HW
*/
slot_fep(PHY_vars_UE,
l,
Ns%20,
0,
0);
#ifdef PERFECT_CE
if (awgn_flag==0) {
// fill in perfect channel estimates
freq_channel(eNB2REL[active_relay_channel_id],PHY_vars_UE->lte_frame_parms.N_RB_DL,301);
//write_output("channel.m","ch",desc1->ch[0],desc1->channel_length,1,8);
//write_output("channelF.m","chF",desc1->chF[0],nb_samples,1,8);
for(k=0; k<NUMBER_OF_eNB_MAX; k++) {
for(aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
for (i=0; i<frame_parms->N_RB_DL*12; i++) {
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[k][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(int16_t)(
eNB2UE->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].x*AMP/2);
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[k][(aa<<1)+aarx])[2*i+1+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=(int16_t)(
eNB2UE->chF[aarx+(aa*frame_parms->nb_antennas_rx)][i].y*AMP/2) ;
}
}
}
}
} else {
for(aa=0; aa<frame_parms->nb_antennas_tx; aa++) {
for (aarx=0; aarx<frame_parms->nb_antennas_rx; aarx++) {
for (i=0; i<frame_parms->N_RB_DL*12; i++) {
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][(aa<<1)+aarx])[2*i+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=AMP/2;
((int16_t *) PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[0][(aa<<1)+aarx])[2*i+1+(l*frame_parms->ofdm_symbol_size+LTE_CE_FILTER_LENGTH)*2]=0/2;
}
}
}
}
#endif
if ((Ns==(2+(2*subframe))) && (l==0)) {
lte_ue_measurements(PHY_vars_UE,
subframe*PHY_vars_UE->lte_frame_parms.samples_per_tti,
1,
0);
/*
debug_msg("RX RSSI %d dBm, digital (%d, %d) dB, linear (%d, %d), avg rx power %d dB (%d lin), RX gain %d dB\n",
PHY_vars_UE->PHY_measurements.rx_rssi_dBm[0] - ((PHY_vars_UE->lte_frame_parms.nb_antennas_rx==2) ? 3 : 0),
PHY_vars_UE->PHY_measurements.wideband_cqi_dB[0][0],
PHY_vars_UE->PHY_measurements.wideband_cqi_dB[0][1],
PHY_vars_UE->PHY_measurements.wideband_cqi[0][0],
PHY_vars_UE->PHY_measurements.wideband_cqi[0][1],
PHY_vars_UE->PHY_measurements.rx_power_avg_dB[0],
PHY_vars_UE->PHY_measurements.rx_power_avg[0],
PHY_vars_UE->rx_total_gain_dB);
debug_msg("N0 %d dBm digital (%d, %d) dB, linear (%d, %d), avg noise power %d dB (%d lin)\n",
PHY_vars_UE->PHY_measurements.n0_power_tot_dBm,
PHY_vars_UE->PHY_measurements.n0_power_dB[0],
PHY_vars_UE->PHY_measurements.n0_power_dB[1],
PHY_vars_UE->PHY_measurements.n0_power[0],
PHY_vars_UE->PHY_measurements.n0_power[1],
PHY_vars_UE->PHY_measurements.n0_power_avg_dB,
PHY_vars_UE->PHY_measurements.n0_power_avg);
debug_msg("Wideband CQI tot %d dB, wideband cqi avg %d dB\n",
PHY_vars_UE->PHY_measurements.wideband_cqi_tot[0],
PHY_vars_UE->PHY_measurements.wideband_cqi_avg[0]);
*/
if (transmission_mode==5 || transmission_mode==6) {
if (pmi_feedback == 1) {
pmi_feedback = 0;
hold_channel = 1;
goto PMI_FEEDBACK;
}
}
}
if ((Ns==(2*subframe)) && (l==pilot1)) {// process symbols 0,1,2
if (dci_flag == 1) {
rx_pdcch(&PHY_vars_UE->lte_ue_common_vars,
PHY_vars_UE->lte_ue_pdcch_vars,
&PHY_vars_UE->lte_frame_parms,
subframe,
0,
(PHY_vars_UE->lte_frame_parms.mode1_flag == 1) ? SISO : ALAMOUTI,
0);
// overwrite number of pdcch symbols
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols = num_pdcch_symbols;
dci_cnt = dci_decoding_procedure(PHY_vars_UE,
dci_alloc_rx,
eNB_id,
subframe);
//printf("dci_cnt %d\n",dci_cnt);
if (dci_cnt==0) {
dlsch_active = 0;
if (round==0) {
dci_errors++;
round=5;
errs[0]++;
round_trials[0]++;
// printf("DCI error trial %d errs[0] %d\n",trials,errs[0]);
}
// for (i=1;i<=round;i++)
// round_trials[i]--;
// round=5;
}
for (i=0; i<dci_cnt; i++) {
//printf("Generating dlsch parameters for RNTI %x\n",dci_alloc_rx[i].rnti);
if ((dci_alloc_rx[i].rnti == n_rnti) &&
(generate_ue_dlsch_params_from_dci(0,
dci_alloc_rx[i].dci_pdu,
dci_alloc_rx[i].rnti,
dci_alloc_rx[i].format,
PHY_vars_UE->dlsch_ue[0],
&PHY_vars_UE->lte_frame_parms,
SI_RNTI,
0,
P_RNTI)==0)) {
//dump_dci(&PHY_vars_UE->lte_frame_parms,&dci_alloc_rx[i]);
coded_bits_per_codeword = get_G(&PHY_vars_eNB->lte_frame_parms,
PHY_vars_UE->dlsch_ue[0][0]->nb_rb,
PHY_vars_UE->dlsch_ue[0][0]->rb_alloc,
get_Qm(PHY_vars_UE->dlsch_ue[0][0]->harq_processes[PHY_vars_UE->dlsch_ue[0][0]->current_harq_pid]->mcs),
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols,
subframe);
/*
rate = (double)dlsch_tbs25[get_I_TBS(PHY_vars_UE->dlsch_ue[0][0]->harq_processes[PHY_vars_UE->dlsch_ue[0][0]->current_harq_pid]->mcs)][PHY_vars_UE->dlsch_ue[0][0]->nb_rb-1]/(coded_bits_per_codeword);
rate*=get_Qm(PHY_vars_UE->dlsch_ue[0][0]->harq_processes[PHY_vars_UE->dlsch_ue[0][0]->current_harq_pid]->mcs);
printf("num_pdcch_symbols %d, G %d, TBS %d\n",PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols,coded_bits_per_codeword,PHY_vars_UE->dlsch_ue[0][0]->harq_processes[PHY_vars_UE->dlsch_ue[0][0]->current_harq_pid]->TBS);
*/
dlsch_active = 1;
} else {
dlsch_active = 0;
if (round==0) {
dci_errors++;
errs[0]++;
round_trials[0]++;
if (n_frames==1) {
printf("DCI misdetection trial %d\n",trials);
round=5;
}
}
// for (i=1;i<=round;i++)
// round_trials[i]--;
// round=5;
}
}
} // if dci_flag==1
else { //dci_flag == 0
PHY_vars_UE->lte_ue_pdcch_vars[0]->crnti = n_rnti;
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols = num_pdcch_symbols;
generate_ue_dlsch_params_from_dci(0,
&DLSCH_alloc_pdu2_1E[0],
C_RNTI,
format1E_2A_M10PRB,
PHY_vars_UE->dlsch_ue[0],
&PHY_vars_UE->lte_frame_parms,
SI_RNTI,
0,
P_RNTI);
dlsch_active = 1;
} // if dci_flag == 1
}
if (dlsch_active == 1) {
if ((Ns==(1+(2*subframe))) && (l==0)) {// process PDSCH symbols 1,2,3,4,5,(6 Normal Prefix)
for (m=PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols;
m<pilot2;
m++) {
#if defined ENABLE_FXP || ENABLE_FLP
// printf("fxp or flp release used\n");
if (rx_pdsch(PHY_vars_UE,
PDSCH,
eNB_id,
eNB_id_i,
subframe,
m,
(m==PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols)?1:0,
dual_stream_UE,
i_mod)==-1) {
dlsch_active = 0;
break;
}
#endif
#ifdef ENABLE_FULL_FLP
// printf("Full flp release used\n");
if (rx_pdsch_full_flp(PHY_vars_UE,
PDSCH,
eNB_id,
eNB_id_i,
subframe,
m,
(m==PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols)?1:0,
dual_stream_UE,
i_mod)==-1) {
dlsch_active = 0;
break;
}
#endif
}
}
if ((Ns==(1+(2*subframe))) && (l==pilot1)) {
// process symbols (6 Extended Prefix),7,8,9
for (m=pilot2;
m<pilot3;
m++) {
#if defined ENABLE_FXP || ENABLE_FLP
// printf("fxp or flp release used\n");
if (rx_pdsch(PHY_vars_UE,
PDSCH,
eNB_id,
eNB_id_i,
subframe,
m,
0,
dual_stream_UE,
i_mod)==-1) {
dlsch_active=0;
break;
}
#endif
#ifdef ENABLE_FULL_FLP
// printf("Full flp release used\n");
if (rx_pdsch_full_flp(PHY_vars_UE,
PDSCH,
eNB_id,
eNB_id_i,
subframe,
m,
0,
dual_stream_UE,
i_mod)==-1) {
dlsch_active=0;
break;
}
#endif
}
}
if ((Ns==(2+(2*subframe))) && (l==0)) { // process symbols 10,11,(12,13 Normal Prefix) do deinterleaving for TTI
for (m=pilot3;
m<PHY_vars_UE->lte_frame_parms.symbols_per_tti;
m++) {
#if defined ENABLE_FXP || ENABLE_FLP
// printf("fxp or flp release used\n");
if (rx_pdsch(PHY_vars_UE,
PDSCH,
eNB_id,
eNB_id_i,
subframe,
m,
0,
dual_stream_UE,
i_mod)==-1) {
dlsch_active=0;
break;
}
#endif
#ifdef ENABLE_FULL_FLP
// printf("Full flp release used\n");
if (rx_pdsch_full_flp(PHY_vars_UE,
PDSCH,
eNB_id,
eNB_id_i,
subframe,
m,
0,
dual_stream_UE,
i_mod)==-1) {
dlsch_active=0;
break;
}
#endif
}
}
if ((n_frames==1) && (Ns==(2+(2*subframe))) && (l==0)) {
write_output("ch0.m","ch0",eNB2REL[active_relay_channel_id]->ch[0],eNB2REL[active_relay_channel_id]->channel_length,1,8);
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
write_output("ch1.m","ch1",eNB2REL[active_relay_channel_id]->ch[PHY_vars_eNB->lte_frame_parms.nb_antennas_rx],eNB2REL[active_relay_channel_id]->channel_length,1,8);
//common vars
write_output("rxsig0.m","rxs0", &PHY_vars_UE->lte_ue_common_vars.rxdata[0][0],10*PHY_vars_UE->lte_frame_parms.samples_per_tti,1,1);
write_output("rxsigF0.m","rxsF0", &PHY_vars_UE->lte_ue_common_vars.rxdataF[0][0],2*PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb,2,1);
if (PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1) {
write_output("rxsig1.m","rxs1", PHY_vars_UE->lte_ue_common_vars.rxdata[1],PHY_vars_UE->lte_frame_parms.samples_per_tti,1,1);
write_output("rxsigF1.m","rxsF1", PHY_vars_UE->lte_ue_common_vars.rxdataF[1],2*PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb,2,1);
}
write_output("dlsch00_ch0.m","dl00_ch0",
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][0][0]),
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
if (PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1)
write_output("dlsch01_ch0.m","dl01_ch0",
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][1][0]),
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
write_output("dlsch10_ch0.m","dl10_ch0",
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][2][0]),
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
if ((PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1) && (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1))
write_output("dlsch11_ch0.m","dl11_ch0",
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][3][0]),
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
//pdsch_vars
dump_dlsch2(PHY_vars_UE,eNB_id,coded_bits_per_codeword);
dump_dlsch2(PHY_vars_UE,eNB_id_i,coded_bits_per_codeword);
write_output("dlsch_e.m","e",PHY_vars_eNB->dlsch_eNB[0][0]->e,coded_bits_per_codeword,1,4);
//pdcch_vars
write_output("pdcchF0_ext.m","pdcchF_ext", PHY_vars_UE->lte_ue_pdcch_vars[eNB_id]->rxdataF_ext[0],2*3*PHY_vars_UE->lte_frame_parms.ofdm_symbol_size,1,1);
write_output("pdcch00_ch0_ext.m","pdcch00_ch0_ext",PHY_vars_UE->lte_ue_pdcch_vars[eNB_id]->dl_ch_estimates_ext[0],300*3,1,1);
write_output("pdcch_rxF_comp0.m","pdcch0_rxF_comp0",PHY_vars_UE->lte_ue_pdcch_vars[eNB_id]->rxdataF_comp[0],4*300,1,1);
write_output("pdcch_rxF_llr.m","pdcch_llr",PHY_vars_UE->lte_ue_pdcch_vars[eNB_id]->llr,2400,1,4);
}
}
}
}
//saving PMI incase of Transmission Mode > 5
if(abstx) {
if(saving_bler==0)
if (trials==0 && round==0 && transmission_mode>=5) {
for (iii=0; iii<NB_RB; iii++) {
//fprintf(csv_fd, "%d, %d", (PHY_vars_UE->lte_ue_pdsch_vars[eNB_id]->pmi_ext[iii]),(PHY_vars_UE->lte_ue_pdsch_vars[eNB_id_i]->pmi_ext[iii]));
fprintf(csv_fd,"%x,%x,",(PHY_vars_UE->lte_ue_pdsch_vars[eNB_id]->pmi_ext[iii]),(PHY_vars_UE->lte_ue_pdsch_vars[eNB_id]->pmi_ext[iii]));
msg(" %x",(PHY_vars_UE->lte_ue_pdsch_vars[eNB_id]->pmi_ext[iii]));
}
}
}
// calculate uncoded BLER
/* uncoded_ber=0;
for (i=0;i<coded_bits_per_codeword;i++)
if (PHY_vars_eNB->dlsch_eNB[0][0]->e[i] != (PHY_vars_UE->lte_ue_pdsch_vars[0]->llr[0][i]<0)) {
uncoded_ber_bit[i] = 1;
uncoded_ber++;
}
else
uncoded_ber_bit[i] = 0;
uncoded_ber/=coded_bits_per_codeword;
avg_ber += uncoded_ber;
*/
//write_output("uncoded_ber_bit.m","uncoded_ber_bit",uncoded_ber_bit,coded_bits_per_codeword,1,0);
/*
printf("precoded CQI %d dB, opposite precoded CQI %d dB\n",
PHY_vars_UE->PHY_measurements.precoded_cqi_dB[eNB_id][0],
PHY_vars_UE->PHY_measurements.precoded_cqi_dB[eNB_id_i][0]);
*/
PHY_vars_UE->dlsch_ue[0][0]->rnti = n_rnti;
dlsch_unscrambling(&PHY_vars_UE->lte_frame_parms,
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols,
PHY_vars_UE->dlsch_ue[0][0],
coded_bits_per_codeword,
PHY_vars_UE->lte_ue_pdsch_vars[eNB_id]->llr[0],
0,
subframe<<1);
/*
for (i=0;i<coded_bits_per_codeword;i++)
PHY_vars_UE->lte_ue_pdsch_vars[0]->llr[0][i] = (short)quantize(100,PHY_vars_UE->lte_ue_pdsch_vars[0]->llr[0][i],4);
*/
ret = dlsch_decoding(PHY_vars_UE->lte_ue_pdsch_vars[eNB_id]->llr[0],
&PHY_vars_UE->lte_frame_parms,
PHY_vars_UE->dlsch_ue[0][0],
subframe,
PHY_vars_UE->lte_ue_pdcch_vars[0]->num_pdcch_symbols);
#ifdef XFORMS
do_forms(form,
&PHY_vars_UE->lte_frame_parms,
PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates_time,
PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id],
PHY_vars_UE->lte_ue_common_vars.rxdata,
PHY_vars_UE->lte_ue_common_vars.rxdataF,
PHY_vars_UE->lte_ue_pdsch_vars[0]->rxdataF_comp[0],
PHY_vars_UE->lte_ue_pdsch_vars[3]->rxdataF_comp[0],
PHY_vars_UE->lte_ue_pdsch_vars[0]->dl_ch_rho_ext[0],
PHY_vars_UE->lte_ue_pdsch_vars[0]->llr[0],coded_bits_per_codeword);
//PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->w[0],3*(tbs+64));
//uncoded_ber_bit,coded_bits_per_codeword);
/*
printf("Hit a key to continue\n");
c = getchar();
*/
#endif
if (ret <= MAX_TURBO_ITERATIONS) {
if (n_frames==1)
printf("No DLSCH errors found\n");
// exit(-1);
if (fix_rounds==0)
round=5;
else
round++;
} else {
errs[round]++;
if (n_frames==1) {
//if ((n_frames==1) || (SNR>=30)) {
printf("DLSCH errors found, uncoded ber %f\n",uncoded_ber);
for (s=0; s<PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->C; s++) {
if (s<PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->Cminus)
Kr = PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->Kminus;
else
Kr = PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->Kplus;
Kr_bytes = Kr>>3;
printf("Decoded_output (Segment %d):\n",s);
for (i=0; i<Kr_bytes; i++)
printf("%d : %x (%x)\n",i,PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->c[s][i],PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->c[s][i]^PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->c[s][i]);
}
write_output("rxsig0.m","rxs0", &PHY_vars_UE->lte_ue_common_vars.rxdata[0][0],10*PHY_vars_UE->lte_frame_parms.samples_per_tti,1,1);
write_output("rxsigF0.m","rxsF0", &PHY_vars_UE->lte_ue_common_vars.rxdataF[0][0],2*PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb,2,1);
if (PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1) {
write_output("rxsig1.m","rxs1", PHY_vars_UE->lte_ue_common_vars.rxdata[1],PHY_vars_UE->lte_frame_parms.samples_per_tti,1,1);
write_output("rxsigF1.m","rxsF1", PHY_vars_UE->lte_ue_common_vars.rxdataF[1],2*PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb,2,1);
}
write_output("dlsch00_ch0.m","dl00_ch0",
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][0][0]),
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
if (PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1)
write_output("dlsch01_ch0.m","dl01_ch0",
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][1][0]),
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
if (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1)
write_output("dlsch10_ch0.m","dl10_ch0",
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][2][0]),
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
if ((PHY_vars_UE->lte_frame_parms.nb_antennas_rx>1) && (PHY_vars_eNB->lte_frame_parms.nb_antennas_tx>1))
write_output("dlsch11_ch0.m","dl11_ch0",
&(PHY_vars_UE->lte_ue_common_vars.dl_ch_estimates[eNB_id][3][0]),
PHY_vars_UE->lte_frame_parms.ofdm_symbol_size*nsymb/2,1,1);
//pdsch_vars
dump_dlsch2(PHY_vars_UE,eNB_id,coded_bits_per_codeword);
write_output("dlsch_e.m","e",PHY_vars_eNB->dlsch_eNB[0][0]->e,coded_bits_per_codeword,1,4);
write_output("dlsch_ber_bit.m","ber_bit",uncoded_ber_bit,coded_bits_per_codeword,1,0);
write_output("dlsch_eNB_w.m","w",PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->w[0],3*(tbs+64),1,4);
write_output("dlsch_UE_w.m","w",PHY_vars_UE->dlsch_ue[0][0]->harq_processes[0]->w[0],3*(tbs+64),1,0);
exit(-1);
}
// printf("round %d errors %d/%d\n",round,errs[round],trials);
round++;
if (n_frames==1)
printf("DLSCH in error in round %d\n",round);
}
free(uncoded_ber_bit);
uncoded_ber_bit = NULL;
} //round
// printf("\n");
if ((errs[0]>=n_frames/10) && (trials>(n_frames/2)))
break;
//len = chbch_stats_read(stats_buffer,NULL,0,4096);
//printf("%s\n\n",stats_buffer);
} //trials
#ifdef REL_AMPLIFY_FORWARD
printf("\n**********************SNR = %f dB, alpha_SNR= %f ( tx_lev %f, sigma2_dB %f, tx_lev_r1 %f, sigma2_r1_dB %f)**************************\n",
SNR_array[0],alpha_SNR,
(double)tx_lev_dB+10*log10(PHY_vars_UE->lte_frame_parms.ofdm_symbol_size/(NB_RB*12)),
sigma2_dB,
(double)tx_lev_r1_dB+10*log10(PHY_vars_UE->lte_frame_parms.ofdm_symbol_size/(NB_RB*12)),
sigma2_r1_dB);
//Compute the real effective rate by taking into account the fact that single relay and two relay have different
// timeslot occupations (which are not taken into account in this extended dlsim simulations.)
//bits/hz.
#ifdef SINGLE_RELAY
total_timeslots = ((double) (round_trials[0] - round_trials[1])*2 + (round_trials[1] - round_trials[2])*4 + (round_trials[2] - round_trials[3])*6 + (round_trials[3])*8 );
#else
total_timeslots = 1 + ((double) (round_trials[0] - round_trials[1])*2 + (round_trials[1] - round_trials[2])*2 + (round_trials[2] - round_trials[3])*4 + (round_trials[3])*4 );
#endif
successfully_sent_frames = (double)(round_trials[0]-errs[3]);
effective_rate = rate*( successfully_sent_frames / total_timeslots);
#else
printf("\n**********************SNR = %f dB (tx_lev %f, sigma2_dB %f)**************************\n",
SNR,
(double)tx_lev_dB+10*log10(PHY_vars_UE->lte_frame_parms.ofdm_symbol_size/(NB_RB*12)),
sigma2_dB);
#endif
printf("Errors (%d/%d %d/%d %d/%d %d/%d), Pe = (%e,%e,%e,%e), dci_errors %d/%d, Pe = %e => effective rate %f (%f), normalized delay %f (%f), uncoded_ber %f\n",
errs[0],
round_trials[0],
errs[1],
round_trials[1],
errs[2],
round_trials[2],
errs[3],
round_trials[3],
(double)errs[0]/(round_trials[0]),
(double)errs[1]/(round_trials[1]),
(double)errs[2]/(round_trials[2]),
(double)errs[3]/(round_trials[3]),
dci_errors,
round_trials[0],
(double)dci_errors/(round_trials[0]),
effective_rate,
rate,
(1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0])/
(double)PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->TBS,
(1.0*(round_trials[0]-errs[0])+2.0*(round_trials[1]-errs[1])+3.0*(round_trials[2]-errs[2])+4.0*(round_trials[3]-errs[3]))/((double)round_trials[0]),
avg_ber/round_trials[0]);
fprintf(bler_fd,"%f;%d;%d;%f;%d;%d;%d;%d;%d;%d;%d;%d;%d;%f\n",
SNR,
mcs,
PHY_vars_eNB->dlsch_eNB[0][0]->harq_processes[0]->TBS,
rate,
errs[0],
round_trials[0],
errs[1],
round_trials[1],
errs[2],
round_trials[2],
errs[3],
round_trials[3],
dci_errors,
avg_ber/round_trials[0]);
fprintf(tikz_fd,"(%f,%f)", SNR, (float)errs[0]/round_trials[0]);
if(abstx) { //ABSTRACTION
blerr= (double)errs[1]/(round_trials[1]);
if (blerr>.1)
snr_step = 1.5;
else snr_step = input_snr_step;
blerr = (double)errs[0]/(round_trials[0]);
if(saving_bler==0)
fprintf(csv_fd,"%e;\n",blerr);
if(blerr<1)
saving_bler = 0;
else saving_bler =1;
} //ABStraction
if (((double)errs[0]/(round_trials[0]))<1e-2)
break;
}// SNR
} //ch_realization
fclose(bler_fd);
fprintf(tikz_fd,"};\n");
fclose(tikz_fd);
if (input_trch_file==1)
fclose(input_trch_fd);
if (input_file==1)
fclose(input_fd);
if(abstx) { // ABSTRACTION
fprintf(csv_fd,"];");
fclose(csv_fd);
}
printf("Freeing dlsch structures\n");
for (i=0; i<2; i++) {
printf("eNB %d\n",i);
free_eNB_dlsch(PHY_vars_eNB->dlsch_eNB[0][i]);
printf("UE %d\n",i);
free_ue_dlsch(PHY_vars_UE->dlsch_ue[0][i]);
}
printf("Freeing channel I/O\n");
for (i=0; i<2; i++) {
free(s_re[i]);
free(s_im[i]);
free(r_re[i]);
free(r_im[i]);
#ifdef REL_AMPLIFY_FORWARD
free(rs_re[i]);
free(rs_im[i]);
free(dr_re[i]);
free(dr_im[i]);
#endif
}
free(s_re);
free(s_im);
free(r_re);
free(r_im);
#ifdef REL_AMPLIFY_FORWARD
free(rs_re);
free(rs_im);
free(dr_re);
free(dr_im);
for (rel = 0; rel < nb_relays; rel++) {
free(REL2UE[rel]);
free(eNB2REL[rel]);
}
#endif
// lte_sync_time_free();
return(0);
}
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