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channel_output

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This commit is contained in:
Robert Schmidt
2026-06-01 16:03:03 +02:00
parent 23ced31bf4
commit ade2038a9c
1 changed files with 4 additions and 4 deletions
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8
openair1/PHY/CODING/TESTBENCH/ldpctest.c
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@@ -112,7 +112,6 @@ one_measurement_t test_ldpc(short max_iterations,
// double channel_output[68 * 384]; // double channel_output[68 * 384];
memset(modulated_input,0,sizeof(modulated_input)); memset(modulated_input,0,sizeof(modulated_input));
int8_t channel_output_fixed[MAX_NUM_DLSCH_SEGMENTS][68 * 384] = {0};
short BG = 0, nrows = 0; //,ncols; short BG = 0, nrows = 0; //,ncols;
int i1, Kb = 0; int i1, Kb = 0;
@@ -317,11 +316,11 @@ one_measurement_t test_ldpc(short max_iterations,
else else
modulated_input[j][i] = -1.0; /// sqrt(2); modulated_input[j][i] = -1.0; /// sqrt(2);
channel_output_fixed[j][i] = channel_output_fixed[j*(384*68) + i] =
(int8_t)quantize(sigma / 4.0 / 4.0, modulated_input[j][i] + sigma * gaussdouble(0.0, 1.0), qbits); (int8_t)quantize(sigma / 4.0 / 4.0, modulated_input[j][i] + sigma * gaussdouble(0.0, 1.0), qbits);
// Uncoded BER // Uncoded BER
uint8_t channel_output_uncoded = channel_output_fixed[j][i] < 0 ? 1 /* QPSK demod */ : 0; uint8_t channel_output_uncoded = channel_output_fixed[(j*384*68)+i] < 0 ? 1 /* QPSK demod */ : 0;
if (channel_output_uncoded != ((channel_input_optim[i - 2 * Zc] >> j) & 0x1)) if (channel_output_uncoded != ((channel_input_optim[i - 2 * Zc] >> j) & 0x1))
ret.errors_bit_uncoded++; ret.errors_bit_uncoded++;
} }
@@ -345,7 +344,7 @@ one_measurement_t test_ldpc(short max_iterations,
start_meas(&ret.time_decoder); start_meas(&ret.time_decoder);
set_abort(&dec_abort, false); set_abort(&dec_abort, false);
n_iter = ldpc_toCompare.LDPCdecoder(&decParams[j], n_iter = ldpc_toCompare.LDPCdecoder(&decParams[j],
(int8_t *)channel_output_fixed[j], &channel_output_fixed[j*384*68],
&estimated_output[j*Kprime], &estimated_output[j*Kprime],
&decoder_profiler, &decoder_profiler,
&dec_abort); &dec_abort);
@@ -535,6 +534,7 @@ int main(int argc, char *argv[])
// find minimum value in all sets of lifting size // find minimum value in all sets of lifting size
Zc = 0; Zc = 0;
estimated_output = malloc(n_segments * Kprime); estimated_output = malloc(n_segments * Kprime);
channel_output_fixed=malloc(n_segments * 68 * 384);
char fname[200]; char fname[200];
sprintf(fname, "ldpctest_BG_%d_Zc_%d_rate_%d-%d_Kprime_%d_maxit_%d.txt", BG, Zc, nom_rate, denom_rate, Kprime, max_iterations); sprintf(fname, "ldpctest_BG_%d_Zc_%d_rate_%d-%d_Kprime_%d_maxit_%d.txt", BG, Zc, nom_rate, denom_rate, Kprime, max_iterations);