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Commit 2dec82b3 authored by yilmazt's avatar yilmazt
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Working polartest

parent cfcd0d4b
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openair1/PHY/CODING/TESTBENCH/polartest.c
View file @ 2dec82b3
......@@ -10,8 +10,8 @@
#include "PHY/CODING/coding_defs.h"
#include "SIMULATION/TOOLS/sim.h"
//#define DEBUG_POLAR_PARAMS
//#define DEBUG_DCI_POLAR_PARAMS
//#define DEBUG_POLAR_TIMING
int main(int argc, char *argv[]) {
......@@ -24,7 +24,6 @@ int main(int argc, char *argv[]) {
randominit(0);
crcTableInit();
uint32_t crc;
//Default simulation values (Aim for iterations = 1000000.)
int itr, iterations = 1000, arguments, polarMessageType = 0; //0=PBCH, 1=DCI, -1=UCI
double SNRstart = -20.0, SNRstop = 0.0, SNRinc= 0.5; //dB
......@@ -34,14 +33,13 @@ int main(int argc, char *argv[]) {
int8_t decoderState=0, blockErrorState=0; //0 = Success, -1 = Decoding failed, 1 = Block Error.
uint16_t testLength = 0, coderLength = 0, blockErrorCumulative=0, bitErrorCumulative=0;
double timeEncoderCumulative = 0, timeDecoderCumulative = 0;
uint8_t aggregation_level, decoderListSize, pathMetricAppr;
uint8_t aggregation_level = 8, decoderListSize = 8, pathMetricAppr = 0;
while ((arguments = getopt (argc, argv, "s:d:f:m:i:l:a:")) != -1)
switch (arguments)
{
case 's':
SNRstart = atof(optarg);
printf("SNRstart = %f\n", SNRstart);
break;
case 'd':
......@@ -93,7 +91,12 @@ int main(int argc, char *argv[]) {
folderName=getenv("HOME");
strcat(folderName,"/Desktop/polartestResults");
#ifdef DEBUG_POLAR_TIMING
sprintf(fileName,"%s/TIMING_ListSize_%d_pmAppr_%d_Payload_%d_Itr_%d",folderName,decoderListSize,pathMetricAppr,testLength,iterations);
#else
sprintf(fileName,"%s/_ListSize_%d_pmAppr_%d_Payload_%d_Itr_%d",folderName,decoderListSize,pathMetricAppr,testLength,iterations);
#endif
strftime(currentTimeInfo, 25, "_%Y-%m-%d-%H-%M-%S.csv", localtime(&currentTime));
strcat(fileName,currentTimeInfo);
......@@ -107,65 +110,45 @@ int main(int argc, char *argv[]) {
fprintf(stderr,"[polartest.c] Problem creating file %s with fopen\n",fileName);
exit(-1);
}
#ifdef DEBUG_POLAR_TIMING
fprintf(logFile,",timeEncoderCRCByte[us],timeEncoderCRCBit[us],timeEncoderInterleaver[us],timeEncoderBitInsertion[us],timeEncoder1[us],timeEncoder2[us],timeEncoderRateMatching[us],timeEncoderByte2Bit[us]\n");
#else
fprintf(logFile,",SNR,nBitError,blockErrorState,t_encoder[us],t_decoder[us]\n");
#endif
//uint8_t *testInput = malloc(sizeof(uint8_t) * testLength); //generate randomly
//uint8_t *encoderOutput = malloc(sizeof(uint8_t) * coderLength);
uint32_t testInput[4], encoderOutput[4];
memset(testInput,0,sizeof(testInput));
memset(encoderOutput,0,sizeof(encoderOutput));
uint8_t testArrayLength = ceil(testLength / 32.0);
uint8_t coderArrayLength = ceil(coderLength / 32.0);
double *modulatedInput = malloc (sizeof(double) * coderLength); //channel input
uint32_t *testInput = malloc(sizeof(uint32_t) * testArrayLength); //generate randomly
uint32_t *encoderOutput = malloc(sizeof(uint32_t) * coderArrayLength);
uint32_t *estimatedOutput = malloc(sizeof(uint32_t) * testArrayLength); //decoder output
memset(testInput,0,sizeof(uint32_t) * testArrayLength);
memset(encoderOutput,0,sizeof(uint32_t) * coderArrayLength);
memset(estimatedOutput,0,sizeof(uint32_t) * testArrayLength);
uint8_t *encoderOutputByte = malloc(sizeof(uint8_t) * coderLength);
double *modulatedInput = malloc (sizeof(double) * coderLength); //channel input
double *channelOutput = malloc (sizeof(double) * coderLength); //add noise
uint32_t *estimatedOutput = malloc(sizeof(uint8_t) * testLength); //decoder output
t_nrPolar_paramsPtr nrPolar_params = NULL, currentPtr = NULL;
nr_polar_init(&nrPolar_params, polarMessageType, testLength, aggregation_level);
currentPtr = nr_polar_params(nrPolar_params, polarMessageType, testLength, aggregation_level);
#ifdef DEBUG_DCI_POLAR_PARAMS
uint32_t crc;
unsigned int poly24c = 0xb2b11700;
testInput[0]=0x01189400;
printf("testInput: [0]->0x%08x \t [1]->0x%08x \t [2]->0x%08x \t [3]->0x%08x\n",
testInput[0], testInput[1], testInput[2], testInput[3]);
printf("encOutput: [0]->0x%08x \t [1]->0x%08x \t [2]->0x%08x \t [3]->0x%08x\n",
encoderOutput[0], encoderOutput[1], encoderOutput[2], encoderOutput[3]);
testInput[0]=0x01189400;
uint8_t testInput2[8];
nr_crc_bit2bit_uint32_8_t(testInput, 32, testInput2);
printf("testInput2: [0]->%x \t [1]->%x \t [2]->%x \t [3]->%x\n [4]->%x \t [5]->%x \t [6]->%x \t [7]->%x \t\n",
printf("testInput2: [0]->%x \t [1]->%x \t [2]->%x \t [3]->%x\n"
" [4]->%x \t [5]->%x \t [6]->%x \t [7]->%x\n",
testInput2[0], testInput2[1], testInput2[2], testInput2[3],
testInput2[4], testInput2[5], testInput2[6], testInput2[7]);
printf("crc32: [0]->0x%08x\n",crc24c(testInput2, 32));
printf("crc56: [0]->0x%08x\n",crc24c(testInput2, 56));
return 0;
uint8_t testInput8[4];
/*testInput8[0]=0x00;
testInput8[1]=0x49;
testInput8[2]=0x81;
testInput8[3]=0x10;
testInput8[4]=0x00;*/
testInput8[0]=0xff;
testInput8[1]=0xd0;
testInput8[2]=0xff;
testInput8[3]=0x82;
crc = crc24c(testInput8, 31);
for (int i=0;i<24;i++) printf("[i]=%d\n",(crc>>i)&1);
printf("crc: [0]->0x%08x\n",crc);
printf("crcbit: %x\n",crcbit(testInput8, 3, poly24c));
return 0;
unsigned char test[] = "Thebigredfox";
for (int i=0;i<8;i++) printf("[i]=%d\n",(test[0]>>i)&1);
printf("test[0]=%x\n",test[0]);
printf("%s -- sizeof=%d\n",test,sizeof(test));
printf("%x\n", crcbit(test, sizeof(test) - 1, poly24c));
printf("%x\n", crc24c(test, (sizeof(test) - 1)*8));
polarMessageType = 1;
testLength = 41;
aggregation_level=1;
coderLength = 108;
nr_polar_init(&nrPolar_params, polarMessageType, testLength, aggregation_level);
nr_polar_print_polarParams(nrPolar_params);
crc = crc24c(testInput, testLength)>>8;
for (int i=0;i<24;i++) printf("[i]=%d\n",(crc>>i)&1);
printf("crc: [0]->0x%08x\n",crc);
......@@ -174,18 +157,30 @@ int main(int argc, char *argv[]) {
testInput[2+(testLength>>3)] = ((uint8_t*)&crc)[0];
printf("testInput: [0]->0x%08x \t [1]->0x%08x \t [2]->0x%08x \t [3]->0x%08x\n",
testInput[0], testInput[1], testInput[2], testInput[3]);
return (0);
currentPtr = nr_polar_params(nrPolar_params, polarMessageType, testLength, aggregation_level);
polar_encoder(testInput, encoderOutput, currentPtr);
printf("AFTER POLAR ENCODING\n");
printf("testInput: [0]->0x%08x \t [1]->0x%08x \t [2]->0x%08x \t [3]->0x%08x\n",
testInput[0], testInput[1], testInput[2], testInput[3]);
printf("encOutput: [0]->0x%08x \t [1]->0x%08x \t [2]->0x%08x \t [3]->0x%08x\n",
encoderOutput[0], encoderOutput[1], encoderOutput[2], encoderOutput[3]);
return (0);
#endif
currentPtr = nr_polar_params(nrPolar_params, polarMessageType, testLength, aggregation_level);
#ifdef DEBUG_POLAR_TIMING
for (SNR = SNRstart; SNR <= SNRstop; SNR += SNRinc) {
SNR_lin = pow(10, SNR / 10);
for (itr = 1; itr <= iterations; itr++) {
for (int j=0; j<ceil(testLength / 32.0); j++) {
for(int i=0; i<32; i++) {
testInput[j] |= ( ((uint32_t) (rand()%2)) &1);
testInput[j]<<=1;
}
}
printf("testInput: [0]->0x%08x \n", testInput[0]);
polar_encoder_timing(testInput, encoderOutput, currentPtr, cpu_freq_GHz, logFile);
}
}
fclose(logFile);
free(testInput);
free(encoderOutput);
free(modulatedInput);
free(channelOutput);
free(estimatedOutput);
return (0);
#endif
// We assume no a priori knowledge available about the payload.
double aPrioriArray[currentPtr->payloadBits];
......@@ -195,25 +190,38 @@ int main(int argc, char *argv[]) {
SNR_lin = pow(10, SNR/10);
for (itr = 1; itr <= iterations; itr++) {
for(int i=0; i<testLength; i++) testInput[i]=(uint8_t) (rand() % 2);
for (int i = 0; i < testArrayLength; i++) {
for (int j = 0; j < (sizeof(testInput[0])*8)-1; j++) {
testInput[i] |= ( ((uint32_t) (rand()%2)) &1);
testInput[i]<<=1;
}
testInput[i] |= ( ((uint32_t) (rand()%2)) &1);
}
/*printf("testInput: [0]->0x%08x\n", testInput[0]);
for (int i=0; i<32; i++)
printf("%d\n",(testInput[0]>>i)&1);*/
start_meas(&timeEncoder);
polar_encoder(testInput, encoderOutput, currentPtr);
stop_meas(&timeEncoder);
/*printf("encoderOutput: [0]->0x%08x\n", encoderOutput[0]);
printf("encoderOutput: [1]->0x%08x\n", encoderOutput[1]);
*/
//Bit-to-byte:
nr_bit2byte_uint32_8_t(encoderOutput, coderLength, encoderOutputByte);
//BPSK modulation
for(int i=0; i<coderLength; i++) {
if (encoderOutput[i] == 0)
if (encoderOutputByte[i] == 0)
modulatedInput[i]=1/sqrt(2);
else
modulatedInput[i]=(-1)/sqrt(2);
channelOutput[i] = modulatedInput[i] + (gaussdouble(0.0,1.0) * (1/sqrt(2*SNR_lin)));
//printf("%f\n",channelOutput[i]);
}
start_meas(&timeDecoder);
/*decoderState = polar_decoder(channelOutput,
estimatedOutput,
......@@ -228,15 +236,21 @@ int main(int argc, char *argv[]) {
NR_POLAR_DECODER_PATH_METRIC_APPROXIMATION,
aPrioriArray);
stop_meas(&timeDecoder);
/*printf("testInput: [0]->0x%08x\n", testInput[0]);
printf("estimatedOutput: [0]->0x%08x\n", estimatedOutput[0]);
*/
//calculate errors
if (decoderState==-1) {
blockErrorState=-1;
nBitError=-1;
} else {
for(int i=0; i<testLength; i++){
if (estimatedOutput[i]!=testInput[i]) nBitError++;
for (int i = 0; i < testArrayLength; i++) {
for (int j = 0; j < (sizeof(testInput[0])*8); j++) {
if (((estimatedOutput[i]>>j) & 1) != ((testInput[i]>>j) & 1)) nBitError++;
}
}
if (nBitError>0) blockErrorState=1;
}
......@@ -273,11 +287,14 @@ int main(int argc, char *argv[]) {
print_meas(&timeDecoder,"polar_decoder",NULL,NULL);
fclose(logFile);
//free(testInput);
//free(encoderOutput);
//Bit
free(testInput);
free(encoderOutput);
free(estimatedOutput);
//Byte
free(encoderOutputByte);
free(modulatedInput);
free(channelOutput);
free(estimatedOutput);
return (0);
}
openair1/PHY/CODING/nrPolar_tools/nr_polar_defs.h
View file @ 2dec82b3
......@@ -42,6 +42,8 @@
#include "PHY/CODING/nrPolar_tools/nr_polar_dci_defs.h"
#include "PHY/CODING/nrPolar_tools/nr_polar_uci_defs.h"
#include "PHY/CODING/nrPolar_tools/nr_polar_pbch_defs.h"
#include "PHY/CODING/coding_defs.h"
#include "SIMULATION/TOOLS/sim.h"
#define NR_POLAR_DECODER_LISTSIZE 8 //uint8_t
#define NR_POLAR_DECODER_PATH_METRIC_APPROXIMATION 0 //uint8_t; 0 --> eq. (8a) and (11b), 1 --> eq. (9) and (12)
......@@ -111,6 +113,12 @@ void polar_encoder_dci(uint32_t *in,
t_nrPolar_paramsPtr polarParams,
uint16_t n_RNTI);
void polar_encoder_timing(uint32_t *in,
uint32_t *out,
t_nrPolar_paramsPtr polarParams,
double cpuFreqGHz,
FILE* logFile);
int8_t polar_decoder(double *input,
uint8_t *output,
t_nrPolar_paramsPtr polarParams,
......@@ -124,6 +132,15 @@ int8_t polar_decoder_aPriori(double *input,
uint8_t pathMetricAppr,
double *aPrioriPayload);
int8_t polar_decoder_aPriori_timing(double *input,
uint32_t *output,
t_nrPolar_paramsPtr polarParams,
uint8_t listSize,
uint8_t pathMetricAppr,
double *aPrioriPayload,
double cpuFreqGHz,
FILE* logFile);
void nr_polar_init(t_nrPolar_paramsPtr *polarParams,
int8_t messageType,
uint16_t messageLength,
......
openair1/PHY/CODING/nrPolar_tools/nr_polar_encoder.c
View file @ 2dec82b3
......@@ -30,10 +30,15 @@
* \warning
*/
//#define DEBUG_POLAR_ENCODER
//#define DEBUG_POLAR_ENCODER_DCI
//#define DEBUG_POLAR_ENCODER_TIMING
#include "PHY/CODING/nrPolar_tools/nr_polar_defs.h"
//input [a_31 a_30 ... a_0]
//output [f_31 f_30 ... f_0] [f_63 f_62 ... f_32] ...
void polar_encoder(uint32_t *in,
uint32_t *out,
t_nrPolar_paramsPtr polarParams)
......@@ -95,6 +100,10 @@ void polar_encoder(uint32_t *in,
/*
* Return bits.
*/
#ifdef DEBUG_POLAR_ENCODER
for (int i=0; i< polarParams->encoderLength;i++) printf("f[%d]=%d\n", i, polarParams->nr_polar_E[i]);
#endif
nr_byte2bit_uint8_32_t(polarParams->nr_polar_E, polarParams->encoderLength, out);
}
......@@ -187,3 +196,76 @@ void polar_encoder_dci(uint32_t *in,
}
#endif
}
void polar_encoder_timing(uint32_t *in,
uint32_t *out,
t_nrPolar_paramsPtr polarParams,
double cpuFreqGHz,
FILE* logFile)
{
//Initiate timing.
time_stats_t timeEncoderCRCByte, timeEncoderCRCBit, timeEncoderInterleaver, timeEncoderBitInsertion, timeEncoder1, timeEncoder2, timeEncoderRateMatching, timeEncoderByte2Bit;
reset_meas(&timeEncoderCRCByte); reset_meas(&timeEncoderCRCBit); reset_meas(&timeEncoderInterleaver); reset_meas(&timeEncoderBitInsertion); reset_meas(&timeEncoder1); reset_meas(&timeEncoder2); reset_meas(&timeEncoderRateMatching); reset_meas(&timeEncoderByte2Bit);
uint16_t n_RNTI=0x0000;
start_meas(&timeEncoderCRCByte);
nr_crc_bit2bit_uint32_8_t(in, polarParams->payloadBits, polarParams->nr_polar_aPrime); //(a to a')
polarParams->crcBit = crc24c(polarParams->nr_polar_aPrime, (polarParams->payloadBits+polarParams->crcParityBits)); //Parity bits computation (p)
uint8_t arrayInd = ceil(polarParams->payloadBits / 8.0); //(a to b)
for (int i=0; i<arrayInd-1; i++)
for (int j=0; j<8; j++)
polarParams->nr_polar_B[j+(i*8)] = ((polarParams->nr_polar_aPrime[3+i]>>(7-j)) & 1);
for (int i=0; i<((polarParams->payloadBits)%8); i++) polarParams->nr_polar_B[i+(arrayInd-1)*8] = ((polarParams->nr_polar_aPrime[3+(arrayInd-1)]>>(7-i)) & 1);
for (int i=0; i<8; i++) polarParams->nr_polar_B[polarParams->payloadBits+i] = ((polarParams->crcBit)>>(31-i))&1;
for (int i=0; i<16; i++) polarParams->nr_polar_B[polarParams->payloadBits+8+i] = ( (((polarParams->crcBit)>>(23-i))&1) + ((n_RNTI>>(15-i))&1) ) % 2; //Scrambling (b to c)
stop_meas(&timeEncoderCRCByte);
start_meas(&timeEncoderCRCBit);
nr_bit2byte_uint32_8_t(in, polarParams->payloadBits, polarParams->nr_polar_A);
nr_matrix_multiplication_uint8_t_1D_uint8_t_2D(polarParams->nr_polar_A, polarParams->crc_generator_matrix, polarParams->nr_polar_crc, polarParams->payloadBits, polarParams->crcParityBits); //Calculate CRC.
for (uint8_t i = 0; i < polarParams->crcParityBits; i++) polarParams->nr_polar_crc[i] = (polarParams->nr_polar_crc[i] % 2);
for (uint16_t i = 0; i < polarParams->payloadBits; i++) polarParams->nr_polar_B[i] = polarParams->nr_polar_A[i]; //Attach CRC to the Transport Block. (a to b)
for (uint16_t i = polarParams->payloadBits; i < polarParams->K; i++) polarParams->nr_polar_B[i]= polarParams->nr_polar_crc[i-(polarParams->payloadBits)];
stop_meas(&timeEncoderCRCBit);
start_meas(&timeEncoderInterleaver); //Interleaving (c to c')
nr_polar_interleaver(polarParams->nr_polar_B, polarParams->nr_polar_CPrime, polarParams->interleaving_pattern, polarParams->K);
stop_meas(&timeEncoderInterleaver);
start_meas(&timeEncoderBitInsertion); //Bit insertion (c' to u)
nr_polar_bit_insertion(polarParams->nr_polar_CPrime, polarParams->nr_polar_U, polarParams->N, polarParams->K, polarParams->Q_I_N, polarParams->Q_PC_N, polarParams->n_pc);
stop_meas(&timeEncoderBitInsertion);
start_meas(&timeEncoder1); //Encoding (u to d)
nr_matrix_multiplication_uint8_t_1D_uint8_t_2D(polarParams->nr_polar_U, polarParams->G_N, polarParams->nr_polar_D, polarParams->N, polarParams->N);
stop_meas(&timeEncoder1);
start_meas(&timeEncoder2);
for (uint16_t i = 0; i < polarParams->N; i++) polarParams->nr_polar_D[i] = (polarParams->nr_polar_D[i] % 2);
stop_meas(&timeEncoder2);
start_meas(&timeEncoderRateMatching);//Rate matching //Sub-block interleaving (d to y) and Bit selection (y to e)
nr_polar_interleaver(polarParams->nr_polar_D, polarParams->nr_polar_E, polarParams->rate_matching_pattern, polarParams->encoderLength);
stop_meas(&timeEncoderRateMatching);
start_meas(&timeEncoderByte2Bit); //Return bits.
nr_byte2bit_uint8_32_t(polarParams->nr_polar_E, polarParams->encoderLength, out);
stop_meas(&timeEncoderByte2Bit);
fprintf(logFile,",%f,%f,%f,%f,%f,%f,%f,%f\n",
(timeEncoderCRCByte.diff_now/(cpuFreqGHz*1000.0)),
(timeEncoderCRCBit.diff_now/(cpuFreqGHz*1000.0)),
(timeEncoderInterleaver.diff_now/(cpuFreqGHz*1000.0)),
(timeEncoderBitInsertion.diff_now/(cpuFreqGHz*1000.0)),
(timeEncoder1.diff_now/(cpuFreqGHz*1000.0)),
(timeEncoder2.diff_now/(cpuFreqGHz*1000.0)),
(timeEncoderRateMatching.diff_now/(cpuFreqGHz*1000.0)),
(timeEncoderByte2Bit.diff_now/(cpuFreqGHz*1000.0)));
}
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