NDLI: A purely symbol-based precoded and LDPC-coded iterative-detection assisted sphere-packing modulated space-time coding scheme

Content Provider	IEEE Xplore Digital Library
Author	Alamri, O. Ng, S.X. Guo, F. Hanzo, L.
Copyright Year	2006
Description	Author affiliation: Sch. of Electr. & Comput. Sci., Southampton Univ. (Alamri, O.; Ng, S.X.; Guo, F.; Hanzo, L.)
Abstract	In this contribution, we propose a purely symbol-based LDPC-coded scheme based on a space-time block coding (STBC) signal construction method that combines orthogonal design with sphere packing, referred to here as (STBC-SP). We demonstrate that useful performance improvements may be attained when sphere packing aided modulation is concatenated with non-binary LDPC especially, when performing purely symbol-based turbo detection by exchanging extrinsic information between the non-binary LDPC decoder and a rate-1 non-binary inner precoder. We also investigate the convergence behaviour of this symbol-based concatenated scheme with the aid of novel non-binary extrinsic information transfer (EXIT) charts. The proposed symbol-based turbo-detected STBC-SP scheme exhibits a 'turbo-cliff' at $E_{b}/N_{0}$ = 5.0 dB and achieves an $E_{b}/N_{0}$ gain of 19.2 dB at a BER of 10 $^{-5}$ over Alamouti's scheme
Starting Page	1201
Ending Page	1206
File Size	206463
Page Count	6
File Format	PDF
ISBN	1424402697
ISSN	15253511
e-ISBN	1424402700
DOI	10.1109/WCNC.2006.1696456
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-04-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Modulation coding Iterative decoding Parity check codes Diversity reception Concatenated codes Bit error rate Transmitting antennas Convergence Turbo codes Employment
Content Type	Text
Resource Type	Article

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