changes for link adaptation and abstraction

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4150 818b1a75-f10b-46b9-bf7c-635c3b92a50f

openair1/PHY/LTE_TRANSPORT/dlsch_decoding.c

@@ -693,7 +693,7 @@ uint32_t dlsch_decoding_emul(PHY_VARS_UE *phy_vars_ue,
     LOG_T(PHY,"\n current harq pid is %d ue id %d \n", harq_pid, ue_id);
 #endif
 
-    if (dlsch_abstraction_EESM(phy_vars_ue->sinr_dB, phy_vars_ue->transmission_mode[eNB_id], dlsch_eNB->rb_alloc, dlsch_eNB->harq_processes[harq_pid]->mcs,PHY_vars_eNB_g[eNB_id]->mu_mimo_mode[ue_id].dl_pow_off) == 1) {
+    if (dlsch_abstraction_MIESM(phy_vars_ue->sinr_dB, phy_vars_ue->transmission_mode[eNB_id], dlsch_eNB->rb_alloc, dlsch_eNB->harq_processes[harq_pid]->mcs,PHY_vars_eNB_g[eNB_id]->mu_mimo_mode[ue_id].dl_pow_off) == 1) {
       // reset HARQ 
       dlsch_ue->harq_processes[harq_pid]->status = SCH_IDLE;
       dlsch_ue->harq_processes[harq_pid]->round  = 0;

openair1/PHY/extern.h

@@ -62,6 +62,8 @@ extern int flag_LA;
 extern double sinr_bler_map[MCS_COUNT][2][20];
 extern double sinr_bler_map_up[MCS_COUNT][2][16];
 extern int table_length[MCS_COUNT];
+extern double sinr_to_cqi[4][16];
+extern int cqi_to_mcs[16];
 
 //for MU-MIMO abstraction using MIESM
 //this 2D arrarays contains SINR, MI and RBIR in rows 1, 2, and 3 respectively

openair1/SIMULATION/LTE_PHY/dlsim.c

@@ -773,7 +773,7 @@ int main(int argc, char **argv) {
 				   forgetting_factor,
 				   rx_sample_offset,
 				   0);
-  if(abstx==1){
+  if(abstx==1 && num_rounds>1){
     for(n=1;n<4;n++)
       eNB2UE[n] = new_channel_desc_scm(PHY_vars_eNB->lte_frame_parms.nb_antennas_tx,
 				       PHY_vars_UE->lte_frame_parms.nb_antennas_rx,
@@ -1655,7 +1655,7 @@ int main(int argc, char **argv) {
 	    multipath_channel(eNB2UE[0],s_re,s_im,r_re,r_im,
 			      2*frame_parms->samples_per_tti,hold_channel);
 	    //	    printf("amc: ****************** eNB2UE[%d]->n_rx = %d,dd %d\n",round,eNB2UE[round]->nb_rx,eNB2UE[round]->channel_offset);
-	    if(abstx==1)
+	    if(abstx==1 && num_rounds>1)
 	      if(round==0 && hold_channel==0){
 		random_channel(eNB2UE[1]);
 		random_channel(eNB2UE[2]);
@@ -1682,7 +1682,7 @@ int main(int argc, char **argv) {
 		  }
 		}
 	      
-		if(num_rounds>2){
+		if(num_rounds>1){
 		  freq_channel(eNB2UE[1], NB_RB,2*NB_RB + 1);
 		
 		  for (u=0;u<2*NB_RB;u++){

openair2/LAYER2/MAC/eNB_scheduler.c

@@ -58,12 +58,6 @@
 //#include "LAYER2/MAC/pre_processor.c"
 #include "pdcp.h"
 
-double snr_mcs[28]={-4.1130, -3.3830, -2.8420, -2.0480, -1.3230, -0.6120, 0.1080, 0.977, 1.7230, 2.7550, 3.1960, 3.8080, 4.6870, 5.6840, 6.6550, 7.7570, 8.3730, 9.3040, 9.5990, 10.9020, 11.7220, 12.5950, 13.4390, 14.8790, 15.8800, 16.4800, 17.8690, 18.7690};
-int cqi_mcs[3][16] = {{0, 0, 0, 2, 4, 6, 8, 11, 13, 15, 18, 20, 22, 25, 27, 27},{0, 0, 0, 2, 4, 6, 8, 11, 13, 15, 18, 20, 22, 25, 27, 27},{0, 0, 0, 2, 4, 6, 8, 11, 13, 15, 18, 19, 22, 24, 26, 27}};
-double cqi_snr[16] = {-8, -7, -6.08, -5.252, -3.956, -2.604, -1.107, 0.87, 2.599, 4.79, 6.716, 8, 10.593, 13.286, 15.745, 18.5};
-double snr_tm6=0;
-
-
 #define ENABLE_MAC_PAYLOAD_DEBUG
 #define DEBUG_eNB_SCHEDULER 1
 //#define DEBUG_HEADER_PARSING 1
@@ -3473,88 +3467,8 @@ void schedule_ue_spec(unsigned char Mod_id,
     //eNB_UE_stats->dlsch_mcs1 = openair_daq_vars.target_ue_dl_mcs;
     // int flag_LA=0;
     //printf("CQI %d\n",eNB_UE_stats->DL_cqi[0]);
-    if (flag_LA==0){
     
-      switch(eNB_UE_stats->DL_cqi[0]) {
-      case 0:
-	eNB_UE_stats->dlsch_mcs1 = 0;
-	break;
-      case 1:
-	eNB_UE_stats->dlsch_mcs1 = 0;
-	break;
-      case 2:
-	eNB_UE_stats->dlsch_mcs1 = 0;
-	break;	
-      case 3:
-	eNB_UE_stats->dlsch_mcs1 = 2;
-	break;
-      case 4:
-	eNB_UE_stats->dlsch_mcs1 = 4;
-	break;
-      case 5:
-	eNB_UE_stats->dlsch_mcs1 = 6;
-	break;
-      case 6:
-	eNB_UE_stats->dlsch_mcs1 = 8;
-	break;
-      case 7:
-	eNB_UE_stats->dlsch_mcs1 = 11;
-	break;
-      case 8:
-	eNB_UE_stats->dlsch_mcs1 = 13;
-	break;
-      case 9:
-	eNB_UE_stats->dlsch_mcs1 = 16;
-	break;
-      case 10:
-	eNB_UE_stats->dlsch_mcs1 = 18;
-	break;
-      case 11:
-	eNB_UE_stats->dlsch_mcs1 = 20;
-	break;
-      case 12:
-	eNB_UE_stats->dlsch_mcs1 = 22;
-	break;
-      case 13:
-	eNB_UE_stats->dlsch_mcs1 = 22;//25
-	break;
-      case 14:
-	eNB_UE_stats->dlsch_mcs1 = 22;//27
-	break;
-      case 15:
-	eNB_UE_stats->dlsch_mcs1 = 22;//28
-	break;
-      default:
-	LOG_E(MAC,"Invalid CQI");
-	exit(-1);
-      }
-    }
-    else {
-	// begin CQI to MCS mapping
-      if(mac_xface->get_transmission_mode(Mod_id,rnti)==1)
-	eNB_UE_stats->dlsch_mcs1 = cqi_mcs[0][eNB_UE_stats->DL_cqi[0]];
-      else
-	if(mac_xface->get_transmission_mode(Mod_id,rnti)==2)
-	  eNB_UE_stats->dlsch_mcs1 = cqi_mcs[1][eNB_UE_stats->DL_cqi[0]];
-	else
-	  if(mac_xface->get_transmission_mode(Mod_id,rnti)==6 || mac_xface->get_transmission_mode(Mod_id,rnti)==5)
-	    eNB_UE_stats->dlsch_mcs1 = cqi_mcs[2][eNB_UE_stats->DL_cqi[0]];
-      // end CQI Mapping 
-      // if MUMIMO is enabled with two UEs then adjust the CQI and MCS mapping
-      if(mac_xface->get_transmission_mode(Mod_id,rnti)==5 && dl_pow_off[UE_id]==0){
-	snr_tm6 = cqi_snr[eNB_UE_stats->DL_cqi[0]];
-	if (snr_tm6<snr_mcs[0])
-	  eNB_UE_stats->dlsch_mcs1 = 0;
-	else 
-	  if(snr_tm6>snr_mcs[27])
-	    eNB_UE_stats->dlsch_mcs1 = 27;
-	  else
-	    for (i=0;i<27;i++){
-	      if(snr_tm6 > snr_mcs[i] && snr_tm6 < snr_mcs[i+1])
-		eNB_UE_stats->dlsch_mcs1 = i;
-	    }
-      }
-    }
+    eNB_UE_stats->dlsch_mcs1 = cqi_to_mcs[eNB_UE_stats->DL_cqi[0]];
     
       if(eNB_UE_stats->dlsch_mcs1>22)
       eNB_UE_stats->dlsch_mcs1=22;

targets/SIMU/EXAMPLES/OSD/WEBXML/template_40.xml

@@ -6,11 +6,11 @@
 	<PATHLOSS_EXPONENT>3.67</PATHLOSS_EXPONENT>
 	<PATHLOSS_0_dB>-128</PATHLOSS_0_dB><!--pathloss at 1km -->
       </FREE_SPACE_MODEL_PARAMETERS>
-      <SMALL_SCALE>Rayleigh8</SMALL_SCALE>
+      <SMALL_SCALE>Rayleigh1</SMALL_SCALE>
     </FADING>
     <SYSTEM_BANDWIDTH_MB>7.68</SYSTEM_BANDWIDTH_MB>
     <SYSTEM_FREQUENCY_GHz>1.9</SYSTEM_FREQUENCY_GHz>
-    <TRANSMISSION_MODE>2</TRANSMISSION_MODE> <!-- validavalue: 1, 2, 5, 6 -->
+    <TRANSMISSION_MODE>6</TRANSMISSION_MODE> <!-- validavalue: 1, 2, 5, 6 -->
     <ANTENNA>
       <eNB_ANTENNA>
 	<RX_NOISE_LEVEL_dB>0</RX_NOISE_LEVEL_dB>

targets/SIMU/USER/oaisim_functions.c

@@ -110,7 +110,7 @@ void get_simulation_options(int argc, char *argv[]) {
     {NULL, 0, NULL, 0}
   };
 
-  while ((c = getopt_long (argc, argv, "aA:b:B:c:C:D:d:eE:f:FGg:hi:j:IJ:k:l:m:M:n:N:oO:p:P:rR:s:S:Q:t:T:u:U:vVx:y:w:W:X:z:Z:", long_options, &option_index)) != -1) {
+  while ((c = getopt_long (argc, argv, "aA:b:B:c:C:D:d:eE:f:FGg:hi:IJ:k:L:l:m:M:n:N:oO:p:P:rR:s:S:t:T:u:U:vVx:y:w:W:X:z:Z:", long_options, &option_index)) != -1) {
     switch (c) {
     case 0:
       if (! strcmp(long_options[option_index].name, "pdcp_period")) {
@@ -567,14 +567,13 @@ void init_ocm() {
   s32 UE_id, eNB_id;
   /* Added for PHY abstraction */
   if (abstraction_flag) {
-    if (0) { //the values of beta and awgn tables are hard coded in PHY/vars.h
+    
     get_beta_map();
 #ifdef PHY_ABSTRACTION_UL
     get_beta_map_up();
 #endif
     get_MIESM_param();
   }
-  }
 
   for (eNB_id = 0; eNB_id < NB_eNB_INST; eNB_id++) {
     enb_data[eNB_id] = (node_desc_t *)malloc(sizeof(node_desc_t));

targets/SIMU/USER/plot_results.m

 function plot_results(tm)
-data_abs = dlmread(sprintf('eNB_stats_abs_th_tx%d.txt',tm));
-data = dlmread(sprintf('eNB_stats_th_tx%d.txt',tm));
+data_abs = dlmread(sprintf('UE_stats_abs_th0_tx%d.txt',tm));
+data = dlmread(sprintf('UE_stats_th0_tx%d.txt',tm));
 figure
 plot(data(:,1),data(:,2))
 hold on

targets/SIMU/USER/sinr_sim.c

@@ -495,16 +495,17 @@ void calculate_sinr(channel_desc_t* eNB2UE, node_desc_t *enb_data, node_desc_t *
 void get_beta_map() {
   char *file_path = NULL;
   //int table_len = 0;
-  int t;
+  int t,u;
   int mcs = 0;
   char *sinr_bler;
   char buffer[1000];
   FILE *fp;
+  double perf_array[13];
 
   file_path = (char*) malloc(512);
 
   for (mcs = 0; mcs < MCS_COUNT; mcs++) {
-    sprintf(file_path,"%s/SIMULATION/LTE_PHY/BLER_SIMULATIONS/AWGN/awgn_abst/awgn_snr_bler_mcs%d.csv",getenv("OPENAIR1_DIR"),mcs);
+    sprintf(file_path,"%s/SIMULATION/LTE_PHY/BLER_SIMULATIONS/AWGN/Perf_Curves_Abs/awgn_bler_tx1_mcs%d.csv",getenv("OPENAIR1_DIR"),mcs);
     fp = fopen(file_path,"r");
     if (fp == NULL) {
       LOG_W(OCM,"ERROR: Unable to open the file %s, try an alternative path\n", file_path);
@@ -518,21 +519,32 @@ void get_beta_map() {
       }
     }
     // else {
+      fgets(buffer, 1000, fp);
       fgets(buffer, 1000, fp);
       table_length[mcs]=0;
       while (!feof(fp)) {
-        sinr_bler = strtok(buffer, ",");
-        sinr_bler_map[mcs][0][table_length[mcs]] = atof(sinr_bler);
-        sinr_bler = strtok(NULL,",");
-        sinr_bler_map[mcs][1][table_length[mcs]] = atof(sinr_bler);
+	u=0;
+        sinr_bler = strtok(buffer, ";");
+	while(sinr_bler != NULL){
+	  perf_array[u]=atof(sinr_bler);
+	  u++;
+	  sinr_bler = strtok(NULL,";");
+	}
+	if((perf_array[4]/perf_array[5]) < 1){
+	  sinr_bler_map[mcs][0][table_length[mcs]] = perf_array[0];
+	  sinr_bler_map[mcs][1][table_length[mcs]] = (perf_array[4]/perf_array[5]);
 	  table_length[mcs]++;
+	}
 	fgets(buffer, 1000, fp);
+	
       }
       fclose(fp);
       //   }
-    LOG_D(OCM,"Print the table for mcs %d\n",mcs);
+      //    LOG_D(OCM,"Print the table for mcs %d\n",mcs);
+printf("Print the table for mcs %d\n",mcs);
     for (t = 0; t<table_length[mcs]; t++)
-      LOG_D(OCM,"%lf  %lf \n ",sinr_bler_map[mcs][0][t],sinr_bler_map[mcs][1][t]);
+      //      LOG_D(OCM,"%lf  %lf \n ",sinr_bler_map[mcs][0][t],sinr_bler_map[mcs][1][t]);
+printf("%lf  %lf \n ",sinr_bler_map[mcs][0][t],sinr_bler_map[mcs][1][t]);
   }
   free(file_path);
 }