Iterative channel equalization, channel decoding and source decoding
Iterative channel equalization, channel decoding and source decoding
The performance of soft source decoding is evaluated over dispersive AWGN channels. By employing source codes having error-correcting capabilities, such as Reversible Variable-Length Codes (RVLCs) and Variable-Length Error-Correcting (VLEC) codes, the softin/soft-out (SISO) source decoder benefits from exchanging information with the MAP equalizer, and effectively eliminates the inter-symbol interference (ISI) after a few iterations. It was also found that the soft source decoder is capable of significantly improving the attainable performance of the turbo receiver provided that channel equalization, channel decoding and source decoding are carried out jointly and iteratively. At SER = 10-4, the performance of this three-component turbo receiver is about 2 dB better in comparison to the benchmark scheme carrying out channel equalization and channel decoding jointly, but source decoding separately. At this SER value, the performance of the proposed scheme is about 1 dB worse than that of the ½-rate convolutional coded non-dispersive AWGN channel.
518-522
Wang, J.
53d8d8bd-3c17-406e-9acf-961cc86b9a00
Yang, L-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
2005
Wang, J.
53d8d8bd-3c17-406e-9acf-961cc86b9a00
Yang, L-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Wang, J., Yang, L-L. and Hanzo, L.
(2005)
Iterative channel equalization, channel decoding and source decoding.
In 2005 IEEE 61st Vehicular Technology Conference.
IEEE.
.
(doi:10.1109/VETECS.2005.1543345).
Record type:
Conference or Workshop Item
(Paper)
Abstract
The performance of soft source decoding is evaluated over dispersive AWGN channels. By employing source codes having error-correcting capabilities, such as Reversible Variable-Length Codes (RVLCs) and Variable-Length Error-Correcting (VLEC) codes, the softin/soft-out (SISO) source decoder benefits from exchanging information with the MAP equalizer, and effectively eliminates the inter-symbol interference (ISI) after a few iterations. It was also found that the soft source decoder is capable of significantly improving the attainable performance of the turbo receiver provided that channel equalization, channel decoding and source decoding are carried out jointly and iteratively. At SER = 10-4, the performance of this three-component turbo receiver is about 2 dB better in comparison to the benchmark scheme carrying out channel equalization and channel decoding jointly, but source decoding separately. At this SER value, the performance of the proposed scheme is about 1 dB worse than that of the ½-rate convolutional coded non-dispersive AWGN channel.
Text
jw-lly-lh-may05-vtc05spring.pdf
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More information
Published date: 2005
Venue - Dates:
2005 IEEE 61st Vehicular Technology Conference, Clarion Hotel, Stockholm, Sweden, 2005-05-30 - 2005-06-01
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 261663
URI: http://eprints.soton.ac.uk/id/eprint/261663
ISSN: 1550-2252
PURE UUID: 754cf1d0-51f5-4a87-859d-04f43d8d742f
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Date deposited: 14 Dec 2005
Last modified: 18 Mar 2024 02:49
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Contributors
Author:
J. Wang
Author:
L-L. Yang
Author:
L. Hanzo
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