Irregular rate-compatible LDPC codes for capacity-approaching hybrid-ARQ schemes

Citations Over Time

Abstract

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 the Shannon limit. This improves over the existing schemes, based on turbo codes and LDPC codes, by up to 0.5 dB.

Related Papers

• → An Incremental Redundancy Hybrid ARQ Scheme via Puncturing and Extending of Polar Codes(2015)71 cited
• → Design of Rate-Compatible Irregular LDPC Codes for Incremental Redundancy Hybrid ARQ Systems(2006)42 cited
• → A Hybrid ARQ Scheme Based on Equivalent Puncturing Patterns of Polar Codes(2018)1 cited
• → On the role of puncturing in hybrid ARQ schemes(2003)11 cited
• → Low-Complexity Hybrid ARQ Scheme for Polar Codes with Higher-Order Modulation(2017)2 cited