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Commit a1bf3268 authored by Florian Kaltenberger's avatar Florian Kaltenberger
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moving old simulators 

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7228 818b1a75-f10b-46b9-bf7c-635c3b92a50f
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Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
openair1/SIMULATION/LTE_CONECT_RELAY/Makefile deleted 100644 → 0
View file @ 486b48f9
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)
openair1/SIMULATION/LTE_CONECT_RELAY/openair_hw.c deleted 100644 → 0
View file @ 486b48f9
/*******************************************************************************
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);
}
openair1/SIMULATION/LTE_CONECT_RELAY/readme.txt deleted 100644 → 0
View file @ 486b48f9
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.
openair1/SIMULATION/LTE_CONECT_RELAY/relaysim.c deleted 100644 → 0
View file @ 486b48f9
/*******************************************************************************
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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