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Design of rate-compatible structured LDPC codes for hybrid ARQ applications

El-Khamy, Mostafa and Hou, Jilei and Bhushan, Naga (2009) Design of rate-compatible structured LDPC codes for hybrid ARQ applications. IEEE Journal on Selected Areas in Communications, 27 (6). pp. 965-973. ISSN 0733-8716.

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In this paper, families of rate-compatible protograph-based LDPC codes that are suitable for incremental-redundancy hybrid ARQ applications are constructed. A systematic technique to construct low-rate base codes from a higher rate code is presented. The base codes are designed to be robust against erasures while having a good performance on error channels. A progressive node puncturing algorithm is devised to construct a family of higher rate codes from the base code. The performance of this puncturing algorithm is compared to other puncturing schemes. Using the techniques in this paper, one can construct a rate-compatible family of codes with rates ranging from 0.1 to 0.9 that are within 1 dB from the channel capacity and have good error floors.

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Additional Information:© 2009 IEEE. Manuscript received 30 September 2008; revised 15 March 2009. The material in this paper was presented in part at the International Symposium on Information Theory, Seattle 2006.
Subject Keywords:Low density parity check (LDPC) codes, hybrid automatic repeat request (HARQ), progressive-edge growth (PEG), progressive puncturing, rate compatible error correcting codes, protographs, channel coding for wireless applications
Issue or Number:6
Record Number:CaltechAUTHORS:20170327-171540085
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Official Citation:M. El-Khamy, J. Hou and N. Bhushan, "Design of rate-compatible structured LDPC codes for hybrid ARQ applications," in IEEE Journal on Selected Areas in Communications, vol. 27, no. 6, pp. 965-973, August 2009. doi: 10.1109/JSAC.2009.090814
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:75454
Deposited By: Kristin Buxton
Deposited On:28 Mar 2017 01:29
Last Modified:03 Oct 2019 16:50

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