5G多径信道下基于BP算法的LDPC编译码研究

Research on LDPC Coding and Decoding Based on BP Algorithm in 5G Multipath Channel

针对5G高频段短距离通信系统中多径信道引起误码率高的问题,提出一种适用于该系统的基于BP算法的LDPC编译码方案。在构建系统仿真模型的基础上,比较不同码长,不同迭代次数对LDPC码译码性能的影响,并对仿真数据进行性能分析,验证了LDPC码的优异性能。

In order to solve the problem of high bit error rate caused by multipath channel in 5G hf shortdistance communication system,a LDPC coding and decoding scheme based on BP algorithm is proposed.On the basis of building the system model,the influences of different code lengths and iteration times on LDPC decoding performance are compared,and the performance of simulation data is analyzed to verify the excellent performance of LDPC code.