The near channel performance of Low Density Parity Check Codes (LDPC) has motivated its wide applications. Iterative decoding of LDPC codes provides significant implementation challenges as the complexity grows with the code size. Recent trends in integrating Multiprocessor System on Chip (MPSoC) with Network on Chip (NoC) gives a modular platform for parallel implementation. This paper presents an implementation platform for decoding LDPC codes based on HeMPS, an open source MPSoC framework based on NoC communication fabric. Reduced minimum sum algorithm is used for decoding LDPC codes and simulations are performed using HeMPS tool. The data rate and speedup factor measured for decoding a rate 1/2 LDPC code characterised by 252x504 parity matrix is presented
翻译:低密度对均检查代码(LDPC)的近通道性能激发了其广泛的应用。LDPC代码的循环解码随着代码规模的复杂程度增加而带来巨大的实施挑战。将芯片多处理器系统(MPSC)与芯片网络(NOC)整合的近期趋势为平行实施提供了一个模块化平台。本文件提供了一个基于HEMPS解码LDPC代码的实施平台,HEMPS是一个基于NOC通信结构的开放源 MPSoC框架。在解码LDPC代码时使用了降低的最低总量算法,并使用HEMPS工具进行了模拟。提供了以252x504平等式矩阵为特征的1/2 LDPC代码解码测量的数据率和加速系数。