Design of rate-compatible structured LDPC codes for hybrid ARQ applications
- Creators
- El-Khamy, Mostafa
- Hou, Jilei
- Bhushan, Naga
Abstract
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.
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.Attached Files
Published - 05174525.pdf
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Additional details
- Eprint ID
- 75454
- Resolver ID
- CaltechAUTHORS:20170327-171540085
- Created
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2017-03-28Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field