Referenced Items are not available for this document.
This correspondence presents the switch strategies for switch-type hybrid hard decision decoding algorithms for regular low-density parity-check (LDPC) codes. After the piecewise analysis of extrinsic information transfer functions for Gallager decoding algorithm B (GB), the normalized switch scheme (NSS), for which the majority-based algorithms and GB are two examples, is proposed. Then, several other examples of NSSs are presented and their convergence properties are analyzed based on the extrinsic information transfer (EXIT) functions. In simulations, the proposed NSSs show meaningful performance improvements and less sensitivity to channel parameter underestimations compared with GB for small and moderate block length codes.
Published in:
Information Theory, IEEE Transactions on
(Volume:54
,
Issue:
7
)
Date of Publication: July 2008
- Page(s):
- 3181 - 3188
- ISSN :
- 0018-9448
- INSPEC Accession Number:
- 10064441
- Digital Object Identifier :
- 10.1109/TIT.2008.924650
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 17 June 2008
- Issue Date :
- July 2008
- Sponsored by :
- IEEE Information Theory Society
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