On construction of rate-compatible low-density Parity-check codes

In this letter, we present a framework for constructing rate-compatible low-density parity-check (LDPC) codes. The codes are linear-time encodable and are constructed from a mother code using puncturing and extending. Application of the proposed construction to a type-II hybrid automatic repeat requ...

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Bibliographic Details
Published in:IEEE communications letters 2004-03, Vol.8 (3), p.159-161
Main Authors: Yazdani, M.R., Banihashemi, A.H.
Format: Article
Language:English
Subjects:
Adaptive coding
Applied sciences
Automatic repeat request
AWGN
Blocking
Coding, codes
Construction
Data communication
Decoding
Dubnium
Error correction codes
Exact sciences and technology
Forward error correction
Information, signal and communications theory
Noise levels
Parity check codes
Piercing
Signal and communications theory
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Throughput
Transmission and modulation (techniques and equipments)
Turbo codes
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Summary:In this letter, we present a framework for constructing rate-compatible low-density parity-check (LDPC) codes. The codes are linear-time encodable and are constructed from a mother code using puncturing and extending. Application of the proposed construction to a type-II hybrid automatic repeat request (ARQ) scheme with information block length k=1024 and code rates 8/19 to 8/10, using an optimized irregular mother code of rate 8/13, results in a throughput which is only about 0.7 dB away from Shannon limit. This outperforms existing similar schemes based on turbo codes and LDPC codes by up to 0.5 dB.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2004.825728