Iteratively Decoded Variable Length Space-Time Coded Modulation


Ng, S.X. and Hanzo, L. (2005) Iteratively Decoded Variable Length Space-Time Coded Modulation. In, 8th International Symposium on Communication Theory and Applications, St. Martins College, Ambleside, UK, 17 - 22 Jul 2005. , 309-314.

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Description/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 discretevalued 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.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Invited Paper Event Dates: 17-22 July 2005
Divisions: Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
ePrint ID: 261665
Date Deposited: 15 Dec 2005
Last Modified: 27 Mar 2014 20:04
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/261665

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