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Distributed joint source coding and trellis coded modulation for symbol-based Markov sources

Distributed joint source coding and trellis coded modulation for symbol-based Markov sources
Distributed joint source coding and trellis coded modulation for symbol-based Markov sources
A distributed joint source-channel coding scheme based on a unity-rate code (URC)-assisted trellis coded modulation (TCM) is proposed, which exploits the spatio-temporal correlation of symbol-based sources. More specifically, asymmetric distributed source coding of two spatially correlated Markov sources is considered, where one of the sources is assumed to be perfectly decoded and to be available at the receiver of the other source as side information. In order to exploit the temporal correlation statistics, an iterative decoding process exchanging extrinsic information between the amalgamated URC-assisted TCM and a soft-symbol source decoder employing a modified symbol-based maximum aposteriori algorithm is invoked. Furthermore, the Slepian-Wolf (SW) bound of symbol-based sources having spatio-temporal correlation is derived and the benefits of exploiting the spatio-temporal correlation using the proposed coding scheme are demonstrated by our extrinsic information transfer chart analysis. It is shown from our simulation results that upon exploiting the spatio-temporal correlation of the sources, the proposed coding scheme is capable of operating within 0.02 bit of the SW bound.
0018-9545
Izhar, Azri
896a2c9d-4eee-4ede-8306-5f7bd9b23789
Aljohani, Abdulah Jeza
92cc487c-7485-4d68-bc33-91c1042318a1
Ng, Soon
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Izhar, Azri
896a2c9d-4eee-4ede-8306-5f7bd9b23789
Aljohani, Abdulah Jeza
92cc487c-7485-4d68-bc33-91c1042318a1
Ng, Soon
e19a63b0-0f12-4591-ab5f-554820d5f78c
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Izhar, Azri, Aljohani, Abdulah Jeza, Ng, Soon and Hanzo, Lajos (2017) Distributed joint source coding and trellis coded modulation for symbol-based Markov sources. IEEE Transactions on Vehicular Technology. (doi:10.1109/TVT.2017.2787548). (In Press)

Record type: Article

Abstract

A distributed joint source-channel coding scheme based on a unity-rate code (URC)-assisted trellis coded modulation (TCM) is proposed, which exploits the spatio-temporal correlation of symbol-based sources. More specifically, asymmetric distributed source coding of two spatially correlated Markov sources is considered, where one of the sources is assumed to be perfectly decoded and to be available at the receiver of the other source as side information. In order to exploit the temporal correlation statistics, an iterative decoding process exchanging extrinsic information between the amalgamated URC-assisted TCM and a soft-symbol source decoder employing a modified symbol-based maximum aposteriori algorithm is invoked. Furthermore, the Slepian-Wolf (SW) bound of symbol-based sources having spatio-temporal correlation is derived and the benefits of exploiting the spatio-temporal correlation using the proposed coding scheme are demonstrated by our extrinsic information transfer chart analysis. It is shown from our simulation results that upon exploiting the spatio-temporal correlation of the sources, the proposed coding scheme is capable of operating within 0.02 bit of the SW bound.

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ST_UTCM_TVT_Accepted - Accepted Manuscript
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Accepted/In Press date: 27 December 2017

Identifiers

Local EPrints ID: 416740
URI: http://eprints.soton.ac.uk/id/eprint/416740
ISSN: 0018-9545
PURE UUID: 4acd7d6b-b40d-4c0c-933d-466ed1c8aa03
ORCID for Soon Ng: ORCID iD orcid.org/0000-0002-0930-7194
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 08 Jan 2018 17:30
Last modified: 07 Oct 2020 05:01

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