NDLI: Design of BICM-ID Systems with Suboptimal Log-MAP Decoding Algorithm

Content Provider	IEEE Xplore Digital Library
Author	Huangping Jin Kewu Peng Jian Song Zaishuang Liu
Copyright Year	2012
Abstract	This paper addresses the performance degradation of near-capacity bit-interleaved coded modulation with iterative demapping and decoding (BICM-ID) when both demapping and decoding employ max-log-MAP algorithm. Two approaches are proposed to overcome the performance degradation: scaling of the transferred log-likelihood-ratios (LLRs) between demapping and decoding to mitigate the bias of LLRs values, and decoding-oriented labeling search to avoid the extrinsic information transfer (EXIT) curve mismatch with max-log-MAP algorithm. In addition, balanced labeling search is developed to achieve the EXIT curve-matching over both AWGN and Rayleigh channel. Simulation results have shown that the designed BICM-ID system with max-log-MAP algorithm could be superior to the referenced LDPC-based BICM system in DVB-T2 with log-MAP demapping and SPA decoding, over both AWGN and Rayleigh channel.
Starting Page	1
Ending Page	5
File Size	196403
Page Count	5
File Format	PDF
ISBN	9781612846842
ISSN	21619654
e-ISBN	9781612846835
DOI	10.1109/WiCOM.2012.6478483
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis AWGN Rayleigh channels Doping Decoding Labeling Signal to noise ratio
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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