2004-10-18
Irregular rate-compatible LDPC codes for capacity-approaching hybrid-ARQ schemes
Publication
Publication
In this paper we describe the construction method of a family of irregular rate-compatible low-density parity-check (LDPC) codes by a combination of puncturing and extending techniques. In particular, we introduce a suitable structure for the extended parity-check matrices which preserves the structure of LDPC codes during extensions. Based on this construction, a family of efficient rate-compatible linear-time encodable codes are generated from an optimized irregular mother code of rate 8/13 and information block length k=1024. The rates of the codes vary from 8/10 to 8/19 and employing them in a type-II hybrid ARQ scheme results in a throughput which is only 0.7 dB away from Shannon limit. This improves over the existing schemes based on turbo codes and LDPC codes by up to 0.5 dB.
| Additional Metadata | |
|---|---|
| Extending, Hybrid ARQ schemes, Iterative coding schemes, Puncturing, Rate-compatible low-density parity-check (RC-LDPC) codes | |
| Canadian Conference on Electrical and Computer Engineering; Technology Driving Innovation, 2004 | |
| Organisation | Department of Systems and Computer Engineering |
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Yazdani, M. (Mohammadreza), & Banihashemi, A. (2004). Irregular rate-compatible LDPC codes for capacity-approaching hybrid-ARQ schemes. In Canadian Conference on Electrical and Computer Engineering (pp. 303–306).
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