Iteratively Decoded Variable Length Space-Time Coded Modulation
Iteratively Decoded Variable Length Space-Time Coded Modulation
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. Nonbinary 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 precoded modulator. More explicitly, the proposed VL-STCM-ID arrangement is a jointly designed iteratively decoded scheme contriving source coding, channel coding, modulation and 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 VL-STCM-ID scheme is more than 14 dB better than that of the Fixed Length STCM (FL-STCM) benchmarker at a source symbol error ratio of 10-4.
309-314
Ng, S.X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
2005
Ng, S.X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Ng, S.X. and Hanzo, L.
(2005)
Iteratively Decoded Variable Length Space-Time Coded Modulation.
8th International Symposium on Communication Theory and Applications, St. Martins College, Ambleside, United Kingdom.
17 - 22 Jul 2005.
.
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Conference or Workshop Item
(Paper)
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. Nonbinary 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 precoded modulator. More explicitly, the proposed VL-STCM-ID arrangement is a jointly designed iteratively decoded scheme contriving source coding, channel coding, modulation and 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 VL-STCM-ID scheme is more than 14 dB better than that of the Fixed Length STCM (FL-STCM) benchmarker at a source symbol error ratio of 10-4.
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Published date: 2005
Additional Information:
Invited Paper Event Dates: 17-22 July 2005
Venue - Dates:
8th International Symposium on Communication Theory and Applications, St. Martins College, Ambleside, United Kingdom, 2005-07-17 - 2005-07-22
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 261665
URI: http://eprints.soton.ac.uk/id/eprint/261665
PURE UUID: 4829a98c-7c22-4fc9-a660-5c25d7d99177
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Date deposited: 15 Dec 2005
Last modified: 18 Mar 2024 02:48
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Contributors
Author:
S.X. Ng
Author:
L. Hanzo
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