DocumentCode
1504828
Title
On LLR Clipping in BICM-IDD Non-Coherent MIMO Communications
Author
Gohary, Ramy H. ; Willink, Tricia J.
Author_Institution
Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, ON, Canada
Volume
15
Issue
6
fYear
2011
fDate
6/1/2011 12:00:00 AM
Firstpage
650
Lastpage
652
Abstract
In this letter a method is proposed for improving the performance of a BICM non-coherent MIMO communication system with iterative demapping and decoding. This method is based on adapting the clipping thresholds of the log-likelihood ratios of the demapper and the decoder to the channel realizations observed by each block. The method is particularly suited for systems in which the data blocks are relatively short and for systems in which list demapping is employed at the receiver.
Keywords
MIMO communication; interleaved codes; iterative decoding; modulation coding; BICM-IDD noncoherent MIMO communications; LLR clipping; bit-interleaved coded modulation; clipping thresholds; iterative demapping and decoding; log-likelihood ratios; multiple-input multiple-output communication system; Bit error rate; Complexity theory; Decoding; Iterative decoding; MIMO; Receivers; Reliability; Bit-interleaved coded-modulation; iterative demapping and decoding; non-coherent MIMO;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2011.041811.110399
Filename
5756417
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