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Proceedings Paper

LDPC-coded signal space diversity with precoding over Rayleigh fading channels
Author(s): Zhiping Shi; Jintao Hu; Zhongpei Zhang
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Paper 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.

Paper Details

Date Published: 31 August 2009
PDF: 7 pages
Proc. SPIE 7455, Satellite Data Compression, Communication, and Processing V, 745511 (31 August 2009); doi: 10.1117/12.830679
Show Author Affiliations
Zhiping Shi, Univ. of Electronic Science and Technology of China (China)
Southeast Univ. (China)
Jintao Hu, Northwestern Polytechnical Univ. (China)
Zhongpei Zhang, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7455:
Satellite Data Compression, Communication, and Processing V
Bormin Huang; Antonio J. Plaza; Raffaele Vitulli, Editor(s)

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