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Commit 3d181d71 authored by lfarizav's avatar lfarizav
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using SSE for rf_rx_simple function

parent 30ae8423
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Showing with 254 additions and 90 deletions
openair1/SIMULATION/RF/defs.h
View file @ 3d181d71
......@@ -63,7 +63,15 @@ void rf_rx_simple(double *r_re[2],
unsigned int length,
double s_time,
double rx_gain_dB);
void rf_rx_simple_freq(double *r_re[2],
double *r_im[2],
unsigned int nb_rx_antennas,
unsigned int length,
double s_time,
double rx_gain_dB,
unsigned int symbols_per_tti,
unsigned int ofdm_symbol_size,
unsigned int n_samples);
void adc(double *r_re[2],
double *r_im[2],
......
openair1/SIMULATION/RF/rf.c
View file @ 3d181d71
......@@ -199,8 +199,8 @@ void rf_rx(double **r_re,
// pn[i] = p_noise;
}
}
#define CHANNEL_SSE
#ifdef CHANNEL_SSE
#define RF_RX_SSE
#ifdef RF_RX_SSE
void rf_rx_simple(double *r_re[2],
double *r_im[2],
unsigned int nb_rx_antennas,
......@@ -225,7 +225,6 @@ void rf_rx_simple(double *r_re[2],
double N0W = pow(10.0,.1*(-174.0 - 10*log10(s_time*1e-9)));
double sqrt_NOW = sqrt(.5*N0W);
double gauss0_sqrt_NOW,gauss1_sqrt_NOW;
double div = rx_gain_lin/(1-rx_gain_lin)*sqrt_NOW;
//double N0W = 0.0;
// printf("s_time=%f, N0W=%g\n",s_time,10*log10(N0W));
......@@ -240,9 +239,10 @@ void rf_rx_simple(double *r_re[2],
clock_t start=clock();*/
for (i=0; i<(length>>1); i++) {
for (a=0; a<nb_rx_antennas; a++) {
//rx128_gain_lin=mm_mul_set1_ps(rx_gain_lin);
gauss0_sqrt_NOW=gauss0_sqrt_NOW*gaussdouble(0.0,1.0);
gauss1_sqrt_NOW=gauss1_sqrt_NOW*gaussdouble(0.0,1.0);
gauss0_sqrt_NOW=sqrt_NOW*gaussdouble(0.0,1.0);
gauss1_sqrt_NOW=sqrt_NOW*gaussdouble(0.0,1.0);
rx128_re = _mm_loadu_pd(&r_re[a][2*i]);//r_re[a][i],r_re[a][i+1]
rx128_im = _mm_loadu_pd(&r_im[a][2*i]);//r_im[a][i],r_im[a][i+1]
rx128_gain_lin = _mm_set1_pd(rx_gain_lin);
......@@ -257,8 +257,7 @@ clock_t start=clock();*/
rx128_im = _mm_mul_pd(rx128_im,rx128_gain_lin);
_mm_storeu_pd(&r_re[a][2*i],rx128_re);
_mm_storeu_pd(&r_im[a][2*i],rx128_im);
gauss0_sqrt_NOW=0;
gauss1_sqrt_NOW=0;
//printf("gaussdouble %e, rx_gain_lin %e\n",gaussdouble(0.0,1.0), rx_gain_lin);
}
......@@ -311,6 +310,152 @@ sum=(sum+stop-start);*/
}
}
}
#endif
#ifdef RF_RX_SSE
void rf_rx_simple_freq(double *r_re[2],
double *r_im[2],
unsigned int nb_rx_antennas,
unsigned int length,
double s_time,
double rx_gain_dB,
unsigned int symbols_per_tti,
unsigned int ofdm_symbol_size,
unsigned int n_samples)
{
/* static int first_run=0;
static double sum;
static int count;
if (!first_run)
{
first_run=1;
sum=0;
count=0;
}
count++;*/
__m128d rx128_re,rx128_im,rx128_gain_lin,gauss_0_128_sqrt_NOW,gauss_1_128_sqrt_NOW;//double
int i,j,a;
double rx_gain_lin = pow(10.0,.05*rx_gain_dB);
//double rx_gain_lin = 1.0;
double N0W = pow(10.0,.1*(-174.0 - 10*log10(s_time*1e-9)));
double sqrt_NOW = sqrt(.5*N0W);
double gauss0_sqrt_NOW,gauss1_sqrt_NOW;
//double N0W = 0.0;
// printf("s_time=%f, N0W=%g\n",s_time,10*log10(N0W));
//Loop over input
#ifdef DEBUG_RF
printf("N0W = %f dBm\n",10*log10(N0W));
printf("rx_gain = %f dB(%f)\n",rx_gain_dB,rx_gain_lin);
#endif
//rx128_gain_lin=mm_loadu_pd(rx_gain_lin);
/*count++;
clock_t start=clock();*/
for (i=0; i<(length>>1); i++) {
for (a=0; a<nb_rx_antennas; a++) {
if (i%(ofdm_symbol_size>>1)>(n_samples>>1) && i%(ofdm_symbol_size>>1)<(ofdm_symbol_size>>1)-(n_samples>>1))
{
//printf("i = %d\n",i);
//_mm_storeu_pd(&r_re[a][2*i],_mm_setzero_pd());
//_mm_storeu_pd(&r_im[a][2*i],_mm_setzero_pd());
break;
}
else
{
//rx128_gain_lin=mm_mul_set1_ps(rx_gain_lin);
gauss0_sqrt_NOW=sqrt_NOW*gaussdouble(0.0,1.0);
gauss1_sqrt_NOW=sqrt_NOW*gaussdouble(0.0,1.0);
rx128_re = _mm_loadu_pd(&r_re[a][2*i]);//r_re[a][i],r_re[a][i+1]
rx128_im = _mm_loadu_pd(&r_im[a][2*i]);//r_im[a][i],r_im[a][i+1]
rx128_gain_lin = _mm_set1_pd(rx_gain_lin);
gauss_0_128_sqrt_NOW = _mm_set1_pd(gauss0_sqrt_NOW);
gauss_1_128_sqrt_NOW = _mm_set1_pd(gauss1_sqrt_NOW);
// Amplify by receiver gain and apply 3rd order non-linearity
//r_re[a][i] = rx_gain_lin*(r_re[a][i] + sqrt(.5*N0W)*gaussdouble(0.0,1.0));
//r_im[a][i] = rx_gain_lin*(r_im[a][i] + sqrt(.5*N0W)*gaussdouble(0.0,1.0));
rx128_re = _mm_add_pd(rx128_re,gauss_0_128_sqrt_NOW);
rx128_im = _mm_add_pd(rx128_im,gauss_1_128_sqrt_NOW);
rx128_re = _mm_mul_pd(rx128_re,rx128_gain_lin);
rx128_im = _mm_mul_pd(rx128_im,rx128_gain_lin);
_mm_storeu_pd(&r_re[a][2*i],rx128_re);
_mm_storeu_pd(&r_im[a][2*i],rx128_im);
}
//#define __AVX__
/*else
{
//rx256_gain_lin=mm_mul_set1_ps(rx_gain_lin);
gauss0_sqrt_NOW=sqrt_NOW*gaussdouble(0.0,1.0);
gauss1_sqrt_NOW=sqrt_NOW*gaussdouble(0.0,1.0);
rx256_re = _mm256_load_pd(&r_re[a][2*i]);//r_re[a][i],r_re[a][i+1]
rx256_im = _mm256_load_pd(&r_im[a][2*i]);//r_im[a][i],r_im[a][i+1]
rx256_gain_lin = _mm_set1_pd(rx_gain_lin);
gauss_0_256_sqrt_NOW = _mm_set1_pd(gauss0_sqrt_NOW);
gauss_1_256_sqrt_NOW = _mm_set1_pd(gauss1_sqrt_NOW);
// Amplify by receiver gain and apply 3rd order non-linearity
//r_re[a][i] = rx_gain_lin*(r_re[a][i] + sqrt(.5*N0W)*gaussdouble(0.0,1.0));
//r_im[a][i] = rx_gain_lin*(r_im[a][i] + sqrt(.5*N0W)*gaussdouble(0.0,1.0));
rx256_re = _mm256_add_pd(rx256_re,gauss_0_256_sqrt_NOW);
rx256_im = _mm256_add_pd(rx256_im,gauss_1_256_sqrt_NOW);
rx256_re = _mm256_mul_pd(rx256_re,rx256_gain_lin);
rx256_im = _mm256_mul_pd(rx256_im,rx256_gain_lin);
_mm_storeu_pd(&r_re[a][2*i],rx256_re);
_mm_storeu_pd(&r_im[a][2*i],rx256_im);
}*/
//printf("gaussdouble %e, rx_gain_lin %e\n",gaussdouble(0.0,1.0), rx_gain_lin);
}
}
/*clock_t stop=clock();
printf("do_DL_sig time is %f s, AVERAGE time is %f s, count %d, sum %e\n",(float) (stop-start)/CLOCKS_PER_SEC,(float) (sum+stop-start)/(count*CLOCKS_PER_SEC),count,sum+stop-start);
sum=(sum+stop-start);*/
}
#else
void rf_rx_simple_freq(double *r_re[2],
double *r_im[2],
unsigned int nb_rx_antennas,
unsigned int length,
double s_time,
double rx_gain_dB,
unsigned int symbols_per_tti,
unsigned int ofdm_symbol_size,
unsigned int n_samples)
{
static int first_run=0;
static double sum;
static int count;
if (!first_run)
{
first_run=1;
sum=0;
count=0;
}
int i,j,a;
double rx_gain_lin = pow(10.0,.05*rx_gain_dB);
//double rx_gain_lin = 1.0;
double N0W = pow(10.0,.1*(-174.0 - 10*log10(s_time*1e-9)));
//double N0W = 0.0;
// printf("s_time=%f, N0W=%g\n",s_time,10*log10(N0W));
//Loop over input
#ifdef DEBUG_RF
printf("N0W = %f dBm\n",10*log10(N0W));
printf("rx_gain = %f dB(%f)\n",rx_gain_dB,rx_gain_lin);
#endif
for (i=0; i<length; i++) {
for (a=0; a<nb_rx_antennas; a++) {
// Amplify by receiver gain and apply 3rd order non-linearity
/*count++;
clock_t start=clock();*/
r_re[a][i] = rx_gain_lin*(r_re[a][i] + sqrt(.5*N0W)*gaussdouble(0.0,1.0));
r_im[a][i] = rx_gain_lin*(r_im[a][i] + sqrt(.5*N0W)*gaussdouble(0.0,1.0));
/*clock_t stop=clock();
printf("do_DL_sig time is %f s, AVERAGE time is %f s, count %d, sum %e\n",(float) (stop-start)/CLOCKS_PER_SEC,(float) (sum+stop-start)/(count*CLOCKS_PER_SEC),count,sum+stop-start);
sum=(sum+stop-start);*/
}
}
}
#endif
......
openair1/SIMULATION/TOOLS/multipath_channel.c
View file @ 3d181d71
......@@ -264,8 +264,8 @@ void multipath_channel_freq(channel_desc_t *desc,
count++;*/
int ii,j,k,f,f2;
__m128d rx_tmp128_re_f,rx_tmp128_im_f,rx_tmp128_re,rx_tmp128_im, rx_tmp128_1,rx_tmp128_2,rx_tmp128_3,rx_tmp128_4,tx128_re,tx128_im,ch128_x,ch128_y,pathloss128;
int ii,j,f;
__m128d rx_tmp128_re_f,rx_tmp128_im_f,rx_tmp128_re,rx_tmp128_im, rx_tmp128_1,rx_tmp128_2,rx_tmp128_3,rx_tmp128_4,tx128_re,tx128_im,chF128_x,chF128_y,pathloss128;
//struct complex rx_tmp;
double path_loss = pow(10,desc->path_loss_dB/20);
......@@ -277,8 +277,8 @@ void multipath_channel_freq(channel_desc_t *desc,
ofdm_symbol_size=length/PHY_vars_UE_g[UE_id][CC_id]->frame_parms.symbols_per_tti;
symbols_per_tti=length/PHY_vars_UE_g[UE_id][CC_id]->frame_parms.ofdm_symbol_size;
//FILE *file;
//file = fopen("multipath.txt","w");
FILE *file;
file = fopen("multipath.txt","w");
#ifdef DEBUG_CH
printf("[CHANNEL_FREQ] keep = %d : path_loss = %g (%f), nb_rx %d, nb_tx %d, dd %d, len %d \n",keep_channel,path_loss,desc->path_loss_dB,desc->nb_rx,desc->nb_tx,dd,desc->channel_length);
......@@ -296,34 +296,34 @@ void multipath_channel_freq(channel_desc_t *desc,
//freq_channel_prach(desc,nb_rb,n_samples,1,44);//Find desc->chF
}
//clock_t start=clock();
for (k=0;k<symbols_per_tti;k++){//k = 0-13 normal cyclic prefix
f2 = 0;
for (f=0;f<(ofdm_symbol_size>>1); f++) {//f2 = 0-511 for 10 Mhz BW
//for (k=0;k<symbols_per_tti;k++){//k = 0-6 normal cyclic prefix
for (f=0;f<((ofdm_symbol_size*symbols_per_tti)>>1); f++) {//f2 = 0-1024*14-1 ---- for 10 Mhz BW
//printf("f is %d\n",f);
for (ii=0; ii<desc->nb_rx; ii++) {
//rx_tmp.x = 0;
//rx_tmp.y = 0;
rx_tmp128_re_f = _mm_setzero_pd();
rx_tmp128_im_f = _mm_setzero_pd();
if (f<=(n_samples>>1) && f>0)//1-300
if (f%(ofdm_symbol_size>>1)<(n_samples>>1))//1-300
{
for (j=0; j<desc->nb_tx; j++) {
//first n_samples>>1 samples of each frequency ofdm symbol out of ofdm_symbol_size
//RX_RE(k) += TX_RE(k).chF(k).x - TX_IM(k).chF(k).y
//RX_IM(k) += TX_IM(k).chF(k).x + TX_RE(k).chF(k).y
tx128_re = _mm_loadu_pd(&tx_sig_re[j][2*f+k*ofdm_symbol_size]);
tx128_im = _mm_loadu_pd(&tx_sig_im[j][2*f+k*ofdm_symbol_size]);
ch128_x = _mm_set1_pd(desc->ch[ii+(j*desc->nb_rx)][f+(n_samples>>1)-1].x);
ch128_y = _mm_set1_pd(desc->ch[ii+(j*desc->nb_rx)][f+(n_samples>>1)-1].y);
tx128_re = _mm_loadu_pd(&tx_sig_re[j][(2*f+1)]);
tx128_im = _mm_loadu_pd(&tx_sig_im[j][(2*f+1)]);
chF128_x = _mm_set1_pd(desc->ch[ii+(j*desc->nb_rx)][(2*(f%(ofdm_symbol_size>>1)))+(n_samples>>1)].x);
chF128_y = _mm_set1_pd(desc->ch[ii+(j*desc->nb_rx)][(2*(f%(ofdm_symbol_size>>1)))+(n_samples>>1)].y);
//rx_tmp.x += (tx_sig_re[j][f+k*ofdm_symbol_size] * desc->chF[ii+(j*desc->nb_rx)][f+(n_samples>>1)-1].x)//tx128_re*ch128_x
// -(tx_sig_im[j][f+k*ofdm_symbol_size] * desc->chF[ii+(j*desc->nb_rx)][f+(n_samples>>1)-1].y);//-tx128_im*ch128_y
//rx_tmp.y += (tx_sig_im[j][f+k*ofdm_symbol_size] * desc->chF[ii+(j*desc->nb_rx)][f+(n_samples>>1)-1].x)//tx128_im*ch128_x
// +(tx_sig_re[j][f+k*ofdm_symbol_size] * desc->chF[ii+(j*desc->nb_rx)][f+(n_samples>>1)-1].y);//+tx128_re*ch128_y
rx_tmp128_1 = _mm_mul_pd(tx128_re,ch128_x);
rx_tmp128_2 = _mm_mul_pd(tx128_re,ch128_y);
rx_tmp128_3 = _mm_mul_pd(tx128_im,ch128_x);
rx_tmp128_4 = _mm_mul_pd(tx128_im,ch128_y);
rx_tmp128_re = _mm_sub_pd(rx_tmp128_1,rx_tmp128_4);
rx_tmp128_im = _mm_add_pd(rx_tmp128_3,rx_tmp128_2);
rx_tmp128_1 = _mm_mul_pd(tx128_re,chF128_x);
rx_tmp128_2 = _mm_mul_pd(tx128_im,chF128_y);
rx_tmp128_3 = _mm_mul_pd(tx128_im,chF128_x);
rx_tmp128_4 = _mm_mul_pd(tx128_re,chF128_y);
rx_tmp128_re = _mm_sub_pd(rx_tmp128_1,rx_tmp128_2);
rx_tmp128_im = _mm_add_pd(rx_tmp128_3,rx_tmp128_4);
rx_tmp128_re_f = _mm_add_pd(rx_tmp128_re_f,rx_tmp128_re);
rx_tmp128_im_f = _mm_add_pd(rx_tmp128_im_f,rx_tmp128_im);
} // j
......@@ -331,29 +331,36 @@ void multipath_channel_freq(channel_desc_t *desc,
//rx_sig_im[ii][f+k*ofdm_symbol_size] = rx_tmp.y*path_loss;
rx_tmp128_re_f = _mm_mul_pd(rx_tmp128_re_f,pathloss128);
rx_tmp128_im_f = _mm_mul_pd(rx_tmp128_im_f,pathloss128);
_mm_storeu_pd(&rx_sig_re[ii][2*f+k*ofdm_symbol_size],rx_tmp128_re_f); // max index: length-dd -1 + dd = length -1
_mm_storeu_pd(&rx_sig_im[ii][2*f+k*ofdm_symbol_size],rx_tmp128_im_f);
_mm_storeu_pd(&rx_sig_re[ii][(2*f+1)],rx_tmp128_re_f); // max index: length-dd -1 + dd = length -1
_mm_storeu_pd(&rx_sig_im[ii][(2*f+1)],rx_tmp128_im_f);
}
else if (f>=ofdm_symbol_size-(n_samples>>1))//724-1023
else if (f%(ofdm_symbol_size>>1)>(n_samples>>1) && f%(ofdm_symbol_size>>1)<(ofdm_symbol_size>>1)-(n_samples>>1))
{
//rx_sig_re[ii][f+k*ofdm_symbol_size] = 0;
//rx_sig_im[ii][f+k*ofdm_symbol_size] = 0;
_mm_storeu_pd(&rx_sig_re[ii][2*f],_mm_setzero_pd()); // max index: length-dd -1 + dd = length -1
_mm_storeu_pd(&rx_sig_im[ii][2*f],_mm_setzero_pd());
}
else
{
for (j=0; j<desc->nb_tx; j++) {
//last n_samples>>1 samples of each frequency ofdm symbol out of ofdm_symbol_size
//RX_RE(k) += TX_RE(k).chF(k).x - TX_IM(k).chF(k).y
//RX_IM(k) += TX_IM(k).chF(k).x + TX_RE(k).chF(k).y
tx128_re = _mm_loadu_pd(&tx_sig_re[j][2*f+k*ofdm_symbol_size]);
tx128_im = _mm_loadu_pd(&tx_sig_im[j][2*f+k*ofdm_symbol_size]);
ch128_x = _mm_set1_pd(desc->ch[ii+(j*desc->nb_rx)][f2].x);
ch128_y = _mm_set1_pd(desc->ch[ii+(j*desc->nb_rx)][f2].y);
tx128_re = _mm_loadu_pd(&tx_sig_re[j][2*f]);
tx128_im = _mm_loadu_pd(&tx_sig_im[j][2*f]);
chF128_x = _mm_set1_pd(desc->ch[ii+(j*desc->nb_rx)][2*(f%(ofdm_symbol_size>>1))-((ofdm_symbol_size>>1)-(n_samples>>1))].x);
chF128_y = _mm_set1_pd(desc->ch[ii+(j*desc->nb_rx)][2*(f%(ofdm_symbol_size>>1))-((ofdm_symbol_size>>1)-(n_samples>>1))].y);
//rx_tmp.x += (tx_sig_re[j][f+k*ofdm_symbol_size] * desc->chF[ii+(j*desc->nb_rx)][f2].x)
// -(tx_sig_im[j][f+k*ofdm_symbol_size] * desc->chF[ii+(j*desc->nb_rx)][f2].y);
//rx_tmp.y += (tx_sig_im[j][f+k*ofdm_symbol_size] * desc->chF[ii+(j*desc->nb_rx)][f2].x)
// +(tx_sig_re[j][f+k*ofdm_symbol_size] * desc->chF[ii+(j*desc->nb_rx)][f2].y);
rx_tmp128_1 = _mm_mul_pd(tx128_re,ch128_x);
rx_tmp128_2 = _mm_mul_pd(tx128_re,ch128_y);
rx_tmp128_3 = _mm_mul_pd(tx128_im,ch128_x);
rx_tmp128_4 = _mm_mul_pd(tx128_im,ch128_y);
rx_tmp128_re = _mm_sub_pd(rx_tmp128_1,rx_tmp128_4);
rx_tmp128_im = _mm_add_pd(rx_tmp128_3,rx_tmp128_2);
rx_tmp128_1 = _mm_mul_pd(tx128_re,chF128_x);
rx_tmp128_2 = _mm_mul_pd(tx128_im,chF128_y);
rx_tmp128_3 = _mm_mul_pd(tx128_im,chF128_x);
rx_tmp128_4 = _mm_mul_pd(tx128_re,chF128_y);
rx_tmp128_re = _mm_sub_pd(rx_tmp128_1,rx_tmp128_2);
rx_tmp128_im = _mm_add_pd(rx_tmp128_3,rx_tmp128_4);
rx_tmp128_re_f = _mm_add_pd(rx_tmp128_re_f,rx_tmp128_re);
rx_tmp128_im_f = _mm_add_pd(rx_tmp128_im_f,rx_tmp128_im);
} // j
......@@ -361,25 +368,16 @@ void multipath_channel_freq(channel_desc_t *desc,
//rx_sig_im[ii][f+k*ofdm_symbol_size] = rx_tmp.y*path_loss;
rx_tmp128_re_f = _mm_mul_pd(rx_tmp128_re_f,pathloss128);
rx_tmp128_im_f = _mm_mul_pd(rx_tmp128_im_f,pathloss128);
_mm_storeu_pd(&rx_sig_re[ii][2*f+k*ofdm_symbol_size],rx_tmp128_re_f); // max index: length-dd -1 + dd = length -1
_mm_storeu_pd(&rx_sig_im[ii][2*f+k*ofdm_symbol_size],rx_tmp128_im_f);
f2++;
//f2++;
}
else
{
//rx_sig_re[ii][f+k*ofdm_symbol_size] = 0;
//rx_sig_im[ii][f+k*ofdm_symbol_size] = 0;
_mm_storeu_pd(&rx_sig_re[ii][2*f+k*ofdm_symbol_size],_mm_setzero_pd()); // max index: length-dd -1 + dd = length -1
_mm_storeu_pd(&rx_sig_im[ii][2*f+k*ofdm_symbol_size],_mm_setzero_pd());
_mm_storeu_pd(&rx_sig_re[ii][2*f],rx_tmp128_re_f); // max index: length-dd -1 + dd = length -1
_mm_storeu_pd(&rx_sig_im[ii][2*f],rx_tmp128_im_f);
}
//fprintf(file,"%d\t%d\t%d\t%e\t%e\t%e\t%e\t%e\t%e\n",f,f2,k,tx_sig_re[ii][f+k*ofdm_symbol_size],tx_sig_im[ii][f+k*ofdm_symbol_size],rx_sig_re[ii][f+k*ofdm_symbol_size],rx_sig_im[ii][f+k*ofdm_symbol_size],desc->chF[0][f].x,desc->chF[0][f].y);
fprintf(file,"%d\t%e\t%e\t%e\t%e\t%e\t%e\n",f,tx_sig_re[ii][f],tx_sig_im[ii][f],rx_sig_re[ii][f],rx_sig_im[ii][f],desc->chF[0][f].x,desc->chF[0][f].y);
//fflush(file);
//printf("number of taps%d\n",desc->channel_length);
} // ii
} // f,f2,f3
}//k
//}//k
/*clock_t stop=clock();
printf("UE_freq_channel time is %f s, AVERAGE time is %f s, count %d, sum %e\n",(float) (stop-start)/CLOCKS_PER_SEC,(float) (sum+stop-start)/(count*CLOCKS_PER_SEC),count,sum+stop-start);
sum=(sum+stop-start);*/
......@@ -410,8 +408,8 @@ void multipath_channel_freq(channel_desc_t *desc,
ofdm_symbol_size=length/PHY_vars_UE_g[UE_id][CC_id]->frame_parms.symbols_per_tti;
symbols_per_tti=length/PHY_vars_UE_g[UE_id][CC_id]->frame_parms.ofdm_symbol_size;
//FILE *file;
//file = fopen("multipath.txt","w");
FILE *file;
file = fopen("multipath.txt","w");
#ifdef DEBUG_CH
printf("[CHANNEL_FREQ] keep = %d : path_loss = %g (%f), nb_rx %d, nb_tx %d, dd %d, len %d \n",keep_channel,path_loss,desc->path_loss_dB,desc->nb_rx,desc->nb_tx,dd,desc->channel_length);
......@@ -423,6 +421,7 @@ void multipath_channel_freq(channel_desc_t *desc,
freq_channel(desc,nb_rb,n_samples);//Find desc->chF
}
//clock_t start=clock();
//printf("symbols_per_tti is %d\n",symbols_per_tti);
for (k=0;k<symbols_per_tti;k++){//k = 0-13 normal cyclic prefix
f2 = 0;
for (f=0;f<ofdm_symbol_size; f++) {//f2 = 0-1023 for 10 Mhz BW
......@@ -464,7 +463,7 @@ void multipath_channel_freq(channel_desc_t *desc,
rx_sig_im[ii][f+k*ofdm_symbol_size] = 0;
}
//fprintf(file,"%d\t%d\t%d\t%e\t%e\t%e\t%e\t%e\t%e\n",f,f2,k,tx_sig_re[ii][f+k*ofdm_symbol_size],tx_sig_im[ii][f+k*ofdm_symbol_size],rx_sig_re[ii][f+k*ofdm_symbol_size],rx_sig_im[ii][f+k*ofdm_symbol_size],desc->chF[0][f].x,desc->chF[0][f].y);
fprintf(file,"%d\t%d\t%d\t%e\t%e\t%e\t%e\t%e\t%e\n",f+k*ofdm_symbol_size,f2,k,tx_sig_re[ii][f+k*ofdm_symbol_size],tx_sig_im[ii][f+k*ofdm_symbol_size],rx_sig_re[ii][f+k*ofdm_symbol_size],rx_sig_im[ii][f+k*ofdm_symbol_size],desc->chF[0][f].x,desc->chF[0][f].y);
//fflush(file);
//printf("number of taps%d\n",desc->channel_length);
} // ii
......
targets/PROJECTS/GENERIC-LTE-EPC/CONF/rru.band7.tm1.if4p5.50PRB.oaisim.conf
View file @ 3d181d71
......@@ -139,7 +139,7 @@ eNBs =
////////// MME parameters:
mme_ip_address = ( { ipv4 = "10.188.114.179";
mme_ip_address = ( { ipv4 = "172.24.11.18";
ipv6 = "192:168:30::17";
active = "yes";
preference = "ipv4";
......
targets/SIMU/USER/channel_sim.c
View file @ 3d181d71
......@@ -380,7 +380,7 @@ void do_DL_sig_freq(channel_desc_t *eNB2UE[NUMBER_OF_eNB_MAX][NUMBER_OF_UE_MAX][
uint8_t UE_id,
int CC_id)
{
/*time_stats_t dl_chan_stats_f;
time_stats_t dl_chan_stats_f;
static int first_run=0;
static double sum;
static int count;
......@@ -390,7 +390,6 @@ void do_DL_sig_freq(channel_desc_t *eNB2UE[NUMBER_OF_eNB_MAX][NUMBER_OF_UE_MAX][
sum=0;
count=0;
}
count++;*/
//int32_t att_eNB_id=-1;
int32_t **txdataF,**rxdataF;
......@@ -430,8 +429,8 @@ void do_DL_sig_freq(channel_desc_t *eNB2UE[NUMBER_OF_eNB_MAX][NUMBER_OF_UE_MAX][
r_re0_f[1] = r_re01_f;
r_im0_f[1] = r_im01_f;
//FILE *file1;
//file1 = fopen("chsim_chF.m","w");
FILE *file1;
file1 = fopen("chsim_s_re_im.m","w");
//printf("chsim thread %d. ue->proc->frame_rx %d, ue->subframe_rx %d, ue->proc->frame_tx %d, ue->subframe_tx %d\n",subframe&0x1,PHY_vars_UE_g[0][0]->proc.proc_rxtx[subframe&0x1].frame_rx,PHY_vars_UE_g[0][0]->proc.proc_rxtx[subframe&0x1].subframe_rx,PHY_vars_UE_g[0][0]->proc.proc_rxtx[subframe&0x1].frame_tx,PHY_vars_UE_g[0][0]->proc.proc_rxtx[subframe&0x1].subframe_tx);
......@@ -490,9 +489,12 @@ void do_DL_sig_freq(channel_desc_t *eNB2UE[NUMBER_OF_eNB_MAX][NUMBER_OF_UE_MAX][
subframe);
#endif
//eNB2UE[eNB_id][UE_id]->path_loss_dB = 0;
//clock_t start=clock();
multipath_channel_freq(eNB2UE[eNB_id][UE_id][CC_id],s_re_f,s_im_f,r_re0_f,r_im0_f,
frame_parms->ofdm_symbol_size*frame_parms->symbols_per_tti,hold_channel,eNB_id,UE_id,CC_id,subframe&0x1);
/*clock_t stop=clock();
printf("multipath_channel DL time is %f s, AVERAGE time is %f s, count %d, sum %e\n",(float) (stop-start)/CLOCKS_PER_SEC,(float) (sum+stop-start)/(count*CLOCKS_PER_SEC),count,sum+stop-start);
sum=(sum+stop-start);*/
//for (int x=0;x<frame_parms->N_RB_DL*12;x++){
// fprintf(file1,"%d\t%e\t%e\n",x,eNB2UE[eNB_id][UE_id][CC_id]->chF[0][x].x,eNB2UE[eNB_id][UE_id][CC_id]->chF[0][x].y);
//}
......@@ -543,17 +545,23 @@ void do_DL_sig_freq(channel_desc_t *eNB2UE[NUMBER_OF_eNB_MAX][NUMBER_OF_UE_MAX][
LOG_D(OCM,"[SIM][DL] UE %d (CCid %d): rx_gain %d dB (-ADC %f) for subframe %d\n",UE_id,CC_id,PHY_vars_UE_g[UE_id][CC_id]->rx_total_gain_dB,
PHY_vars_UE_g[UE_id][CC_id]->rx_total_gain_dB-66.227,subframe);
#endif
//clock_t start=clock();
rf_rx_simple(r_re0_f,
count++;
clock_t start=clock();
rf_rx_simple_freq(r_re0_f,
r_im0_f,
nb_antennas_rx,
frame_parms->ofdm_symbol_size*frame_parms->symbols_per_tti,
1e3/eNB2UE[eNB_id][UE_id][CC_id]->sampling_rate, // sampling time (ns)
(double)PHY_vars_UE_g[UE_id][CC_id]->rx_total_gain_dB - 66.227); // rx_gain (dB) (66.227 = 20*log10(pow2(11)) = gain from the adc that will be applied later)
/*clock_t stop=clock();
printf("do_DL_sig time is %f s, AVERAGE time is %f s, count %d, sum %e\n",(float) (stop-start)/CLOCKS_PER_SEC,(float) (sum+stop-start)/(count*CLOCKS_PER_SEC),count,sum+stop-start);
sum=(sum+stop-start);*/
(double)PHY_vars_UE_g[UE_id][CC_id]->rx_total_gain_dB - 66.227, // rx_gain (dB) (66.227 = 20*log10(pow2(11)) = gain from the adc that will be applied later)
frame_parms->symbols_per_tti,
frame_parms->ofdm_symbol_size,
12.0*frame_parms->N_RB_DL);
clock_t stop=clock();
printf("rf_rx DL time is %f s, AVERAGE time is %f s, count %d, sum %e\n",(float) (stop-start)/CLOCKS_PER_SEC,(float) (sum+stop-start)/(count*CLOCKS_PER_SEC),count,sum+stop-start);
sum=(sum+stop-start);
for (int x=0;x<frame_parms->ofdm_symbol_size*frame_parms->symbols_per_tti;x++){
fprintf(file1,"%d\t%e\t%e\n",x,r_re0_f[0][x],r_im0_f[0][x]);
}
#ifdef DEBUG_SIM
rx_pwr = signal_energy_fp(r_re0_f,r_im0_f,
nb_antennas_rx,
......
targets/SIMU/USER/oaisim_functions.c
View file @ 3d181d71
......@@ -1051,8 +1051,7 @@ int eNB_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void *
first_run=1;
sum=0;
count=0;
}
count++;*/
} */
int ret = nsamps;
......@@ -1122,6 +1121,8 @@ int eNB_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void *
for (UE_id=0; UE_id<NB_UE_INST; UE_id++){
if (is_prach_subframe(&PHY_vars_UE_g[UE_id][CC_id]->frame_parms,frame,subframe) && PHY_vars_UE_g[UE_id][CC_id]->generate_prach)
{
//count++;
//clock_t start=clock();
do_UL_prach(UE2eNB,
enb_data,
ue_data,
......@@ -1131,6 +1132,9 @@ int eNB_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void *
0, // frame is only used for abstraction
eNB_id,
CC_id);
/*clock_t stop=clock();
printf("do_UL_sig_PRACH time is %f s, AVERAGE time is %f s, count %d, sum %e\n",(float) (stop-start)/CLOCKS_PER_SEC,(float) (sum+stop-start)/(count*CLOCKS_PER_SEC),count,sum+stop-start);
sum=(sum+stop-start);*/
//write_output("txprachF.m","prach_txF", PHY_vars_UE_g[0][CC_id]->prach_vars[0]->prachF,12*frame_parms->ofdm_symbol_size*frame_parms->symbols_per_tti,1,16);
break;
}
......@@ -1198,7 +1202,7 @@ int eNB_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void *
int UE_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void **buff, int nsamps, int cc)
{
time_stats_t dl_chan_stats_f;
/*time_stats_t dl_chan_stats_f;
static int first_run=0;
static double sum;
static int count;
......@@ -1208,7 +1212,7 @@ int UE_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void **
sum=0;
count=0;
}
count++;
count++;*/
int ret = nsamps;
int UE_id = device->Mod_id;
......@@ -1276,7 +1280,7 @@ int UE_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void **
if (do_ofdm_mod)
{
//start_meas(&dl_chan_stats_f);
clock_t start=clock();
//clock_t start=clock();
do_DL_sig_freq(eNB2UE,
enb_data,
ue_data,
......@@ -1285,9 +1289,9 @@ int UE_trx_read(openair0_device *device, openair0_timestamp *ptimestamp, void **
&PHY_vars_UE_g[UE_id][CC_id]->frame_parms,
UE_id,
CC_id);
clock_t stop=clock();
/*clock_t stop=clock();
printf("do_DL_sig time is %f s, AVERAGE time is %f s, count %d, sum %e\n",(float) (stop-start)/CLOCKS_PER_SEC,(float) (sum+stop-start)/(count*CLOCKS_PER_SEC),count,sum+stop-start);
sum=(sum+stop-start);
sum=(sum+stop-start);*/
//stop_meas(&dl_chan_stats_f);
//print_meas(&dl_chan_stats_f,"DL_Channel Stats Frequency Domain",&dl_chan_stats_f,&dl_chan_stats_f);
}
......
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