LDPC-coded signal space diversity with precoding over Rayleigh fading channels

Zhiping Shi; Jintao Hu; Zhongpei Zhang

doi:10.1117/12.830679

31 August 2009 LDPC-coded signal space diversity with precoding over Rayleigh fading channels

Zhiping Shi, Jintao Hu, Zhongpei Zhang

Proceedings Volume 7455, Satellite Data Compression, Communication, and Processing V; 745511 (2009) https://doi.org/10.1117/12.830679
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Signal space diversity (SSD) has been viewed as a very efficient method to increase the diversity order and the reliability of wireless transmission over fading channels. The nonbinary LDPC code can provide powerful error protection over fading channels. The combination of non-binary LDPC codes and SSD is an effective technique to fading and strong noise for fading channel. This paper discusses a signal space diversity with a precoder by adding a simple encoder before applying the rotation matrix that can be viewed as a SSD with rate below 1. We propose three design criteria and two implementation method. And we further consider a nonbinary LDPC-coded signal space diversity with precoding and their rate re-allocation between channel coding and SSD. It is shown that our scheme outperforms the conventional coded- SSD over the fading channel when we get a better rate allocation that depends on the specific channel coding.

Citation Download Citation

Zhiping Shi, Jintao Hu, and Zhongpei Zhang "LDPC-coded signal space diversity with precoding over Rayleigh fading channels", Proc. SPIE 7455, Satellite Data Compression, Communication, and Processing V, 745511 (31 August 2009); https://doi.org/10.1117/12.830679

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