Low-Density Parity-Check Codes for Nonergodic Block-Fading Channels

被引：69

作者：

Boutros, Joseph Jean ^{[1
]}

Guillen i Fabregas, Albert ^{[2
]}

Biglieri, Ezio ^{[3
]}

Zemor, Gilles ^{[4
]}

机构：

[1] Texas A&M Univ Qatar, Elect Engn Program, Doha, Qatar

[2] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England

[3] Univ Pompeu Fabra, Barcelona, Spain

[4] Univ Bordeaux 1, Inst Math Bordeaux, Bordeaux, France

来源：

IEEE TRANSACTIONS ON INFORMATION THEORY | 2010年 / 56卷 / 09期

关键词：

Block-fading (BF) channel; iterative decoding; low-density parity-check (LDPC) codes; maximum-likelihood (ML) decoding; maximum-distance separable (MDS) codes; outage probability; CONVOLUTIONAL-CODES; PERFORMANCE; CAPACITY;

D O I：

10.1109/TIT.2010.2053890

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

We design powerful low-density parity-check (LDPC) codes with iterative decoding for the block-fading channel. We first study the case of maximum-likelihood decoding, and show that the design criterion is rather straightforward. Since optimal constructions for maximum-likelihood decoding do not perform well under iterative decoding, we introduce a new family of full-diversity LDPC codes that exhibit near-outage-limit performance under iterative decoding for all block-lengths. This family competes favorably with multiplexed parallel turbo codes for nonergodic channels.

引用

页码：4286 / 4300

页数：15

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