非规则重复累积码(IRA)在AWGN信道的编译码C程序，译码算法BP算法。程序用txt文档保存。-Code irregular repeat accumulate (IRA) in the AWGN channel codec C procedures, BP decoding algorithm. Txt document with the preservation process.

Construct the short length of QC LDPC codes without girth 4 and girth 6-The Program to construct the short length of QC LDPC codes without girth 4 and girth 6 Copyright (C) Yang XIAO, Jun FAN, BJTU, July 26, 2007, E-Mail: yxiao@bjtu.edu.cn.

这是一套完整的支持wimax 16e协议CTC的编译码程序， 主程序在demo.c 译码器：tcdecoder.c 编码器：tcencoder.c-/* This program simulates the classical turbo encoding-decoding system on PC.*/ /* It uses parallel concatenated convolutional codes described in Figure 2.9 in Chapter

卷积码的实现，c比matlab快很多。scr ipt for computing the BER for BPSK modulation in AWGN with Hard and Soft decision Viterbi decoding with traceback-discuss a simple binary convolutional coding scheme at the transmitter and the associated Viterbi (maximum li