Iteratively Decoded Variable Length Space-Time Coded Modulation: Code Construction and Convergence Analysis
Iteratively Decoded Variable Length Space-Time Coded Modulation: Code Construction and Convergence Analysis
An Iteratively Decoded Variable Length Space Time Coded Modulation (VL-STCM-ID) scheme capable of simultaneously providing both coding and iteration gain as well as multiplexing and diversity gain is proposed. Non-binary unity-rate precoders are employed for assisting the iterative decoding of the VL-STCM-ID scheme. The discrete-valued source symbols are first encoded into variable-length codewords that are mapped to the spatial and temporal domains. Then the variable-length codewords are interleaved and fed to the precoder assisted modulator. More explicitly, the proposed VL-STCM-ID arrangement is a jointly designed iteratively decoded scheme combining source coding, channel coding, modulation as well as spatial diversity/multiplexing. As expected, the higher the source correlation, the higher the achievable performance gain of the scheme becomes. Furthermore, the performance of the VLSTCM-ID scheme is about 14.6 dB better than that of the FixedLength STCM (FL-STCM) benchmarker at a source symbol error ratio of 10-4.
EXIT charts, iterative decoding, MIMO, STTC, VLC.
1953-1963
Ng, S. X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Wang, J.
53d8d8bd-3c17-406e-9acf-961cc86b9a00
Tao, M.
7651d151-50fb-4e51-a18b-be056e4a619b
Yang, L.-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Vitetta, G.
71e6bee6-909e-41d1-9cda-2e7708820519
May 2007
Ng, S. X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Wang, J.
53d8d8bd-3c17-406e-9acf-961cc86b9a00
Tao, M.
7651d151-50fb-4e51-a18b-be056e4a619b
Yang, L.-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Vitetta, G.
71e6bee6-909e-41d1-9cda-2e7708820519
Ng, S. X., Wang, J., Tao, M., Yang, L.-L. and Hanzo, L.
,
Vitetta, G.
(ed.)
(2007)
Iteratively Decoded Variable Length Space-Time Coded Modulation: Code Construction and Convergence Analysis.
IEEE Transactions on Wireless Communications, 6 (5), .
Abstract
An Iteratively Decoded Variable Length Space Time Coded Modulation (VL-STCM-ID) scheme capable of simultaneously providing both coding and iteration gain as well as multiplexing and diversity gain is proposed. Non-binary unity-rate precoders are employed for assisting the iterative decoding of the VL-STCM-ID scheme. The discrete-valued source symbols are first encoded into variable-length codewords that are mapped to the spatial and temporal domains. Then the variable-length codewords are interleaved and fed to the precoder assisted modulator. More explicitly, the proposed VL-STCM-ID arrangement is a jointly designed iteratively decoded scheme combining source coding, channel coding, modulation as well as spatial diversity/multiplexing. As expected, the higher the source correlation, the higher the achievable performance gain of the scheme becomes. Furthermore, the performance of the VLSTCM-ID scheme is about 14.6 dB better than that of the FixedLength STCM (FL-STCM) benchmarker at a source symbol error ratio of 10-4.
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ToW052007.pdf
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Published date: May 2007
Keywords:
EXIT charts, iterative decoding, MIMO, STTC, VLC.
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 264076
URI: http://eprints.soton.ac.uk/id/eprint/264076
PURE UUID: 2cdd72b6-27a0-4608-aace-576fd2790064
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Date deposited: 23 May 2007
Last modified: 18 Mar 2024 02:49
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Contributors
Author:
S. X. Ng
Author:
J. Wang
Author:
M. Tao
Author:
L.-L. Yang
Author:
L. Hanzo
Editor:
G. Vitetta
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