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146 lines
3.2 KiB
C
146 lines
3.2 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2014 The libLTE Developers. See the
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* COPYRIGHT file at the top-level directory of this distribution.
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*
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* \section LICENSE
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*
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* This file is part of the libLTE library.
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*
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* libLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* libLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* A copy of the GNU Lesser General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <unistd.h>
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#include <math.h>
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#include <time.h>
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#include <stdbool.h>
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#include "liblte/phy/phy.h"
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int nof_tx_bits = -1, nof_rx_bits = -1;
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int rv_idx = 0;
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void usage(char *prog) {
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printf("Usage: %s -t nof_tx_bits -r nof_rx_bits [-i rv_idx]\n", prog);
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}
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void parse_args(int argc, char **argv) {
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int opt;
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while ((opt = getopt(argc, argv, "tri")) != -1) {
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switch (opt) {
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case 't':
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nof_tx_bits = atoi(argv[optind]);
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break;
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case 'r':
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nof_rx_bits = atoi(argv[optind]);
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break;
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case 'i':
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rv_idx = atoi(argv[optind]);
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break;
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default:
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usage(argv[0]);
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exit(-1);
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}
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}
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if (nof_tx_bits == -1) {
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usage(argv[0]);
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exit(-1);
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}
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if (nof_rx_bits == -1) {
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usage(argv[0]);
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exit(-1);
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}
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}
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int main(int argc, char **argv) {
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int i;
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uint8_t *bits, *rm_bits, *w_buff_c;
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float *rm_symbols, *unrm_symbols, *w_buff_f;
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int nof_errors;
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parse_args(argc, argv);
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bits = malloc(sizeof(uint8_t) * nof_tx_bits);
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if (!bits) {
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perror("malloc");
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exit(-1);
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}
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w_buff_c = malloc(sizeof(uint8_t) * nof_tx_bits * 10);
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if (!w_buff_c) {
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perror("malloc");
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exit(-1);
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}
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rm_bits = malloc(sizeof(uint8_t) * nof_rx_bits);
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if (!rm_bits) {
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perror("malloc");
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exit(-1);
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}
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rm_symbols = malloc(sizeof(float) * nof_rx_bits);
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if (!rm_symbols) {
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perror("malloc");
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exit(-1);
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}
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w_buff_f = malloc(sizeof(float) * nof_rx_bits * 10);
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if (!w_buff_c) {
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perror("malloc");
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exit(-1);
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}
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unrm_symbols = malloc(sizeof(float) * nof_tx_bits);
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if (!unrm_symbols) {
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perror("malloc");
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exit(-1);
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}
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for (i = 0; i < nof_tx_bits; i++) {
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bits[i] = rand() % 2;
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}
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rm_turbo_tx(w_buff_c, nof_tx_bits * 10, bits, nof_tx_bits, rm_bits, nof_rx_bits, rv_idx);
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for (i = 0; i < nof_rx_bits; i++) {
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rm_symbols[i] = (float) rm_bits[i] ? 1 : -1;
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}
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rm_turbo_rx(w_buff_f, nof_rx_bits * 10, rm_symbols, nof_rx_bits, unrm_symbols, nof_tx_bits,
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rv_idx);
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nof_errors = 0;
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for (i = 0; i < nof_tx_bits; i++) {
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if (unrm_symbols[i] > 0 && ((unrm_symbols[i] > 0) != bits[i])) {
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nof_errors++;
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}
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}
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free(bits);
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free(rm_bits);
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free(rm_symbols);
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free(unrm_symbols);
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if (nof_errors) {
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printf("nof_errors=%d\n", nof_errors);
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exit(-1);
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}
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printf("Ok\n");
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exit(0);
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}
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