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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Vydáno v:	IEEE communications letters Ročník 8; číslo 3; s. 159 - 161
Hlavní autoři:	Yazdani, M.R., Banihashemi, A.H.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.03.2004 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	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 Iterative method Simulation Coding Automatic repeat request Information transmission
ISSN:	1089-7798, 1558-2558
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Popis
Shrnutí:	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.
Bibliografie:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 14 content type line 23
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2004.825728