AWGN与Rayleigh信道下TPC性能仿真研究  

Performance Simulation and Research on Turbo Product Codes over AWGN and Rayleigh Channels

作　　者：冯战[1] 郑海昕[1] 秦铭晨[1] 

机构地区：[1]中国人民解放军装备学院,北京101416

出　　处：《无线电工程》2013年第9期7-9,60,共4页Radio Engineering

摘　　要：Turbo乘积码与Turbo卷积码性能相近,分量码采用了线性分组码,不仅译码复杂度低、译码延迟小,而且能在高码率时保持较高的译码性能。针对瑞利信道中Turbo乘积码的性能和适用性进行了研究,并与高斯信道做了对比。重点研究了Turbo乘积码的Chase译码算法,提出了瑞利信道中传统Chase算法的改进算法。通过Matlab仿真结果表明,Turbo乘积码在瑞利信道中虽较高斯信道性能有所下降,但仍具有良好的编码增益。Turbo Product Code（TPC） ,whose component codes use linear block codes,not only has a close performance to convo- lutional Turbo Code with a lower decoding complexity and smaller decoding delay,but can maintain a relatively high decoding perform- ance under high coding rate. This paper made a research on the performance and application of Turbo product codes in the Rayteigh channel compared with the AWGN channel. Especially,this paper focuses on Chase decoding algorithm and its improvement for the Rayleigh channel. The simulation results indicate that Turbo product codes have excellent performance in the Rayleigh channel though the BER performance degrades somewhat compared with the one in the AWGN channel.

关 键 词：TURBO乘积码 高斯信道 瑞利信道 CHASE算法 

分 类 号：TN911[电子电信—通信与信息系统]