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Authors: Trevor Spiteri and Victor Buttigieg

Affiliation: University of Malta, Malta

ISBN: 978-989-8425-19-5

Keyword(s): Arithmetic coding, Joint source-channel coding.

Related Ontology Subjects/Areas/Topics: Error Control and Concealment ; Mobile Multimedia (GSM, GPRS, RF, Wi-Fi,…) ; Multimedia ; Multimedia and Communications ; Telecommunications

Abstract: This paper presents a joint source-channel coding technique involving arithmetic coding. The work is based on an existing maximum a posteriori (MAP) estimation approach in which a forbidden symbol is introduced into the arithmetic coder to improve error-correction performance. Three improvements to the system are presented: the placement of the forbidden symbol is modified to decrease the delay from the introduction of an error to the detection of the error; the arithmetic decoder is modified for quicker detection by the introduction of a look-ahead technique; and the calculation of the MAP metric is modified for faster error detection. Experimental results show an improvement of up to 0.4 dB for soft decoding and 0.6 dB for hard decoding.

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Paper citation in several formats:
Spiteri T. and Buttigieg V. (2010). ARITHMETIC CODING FOR JOINT SOURCE-CHANNEL CODING.In Proceedings of the International Conference on Signal Processing and Multimedia Applications - Volume 1: SIGMAP, (ICETE 2010) ISBN 978-989-8425-19-5, pages 5-14. DOI: 10.5220/0002944400050014

@conference{sigmap10,
author={Trevor Spiteri and Victor Buttigieg},
title={ARITHMETIC CODING FOR JOINT SOURCE-CHANNEL CODING},
booktitle={Proceedings of the International Conference on Signal Processing and Multimedia Applications - Volume 1: SIGMAP, (ICETE 2010)},
year={2010},
pages={5-14},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002944400050014},
isbn={978-989-8425-19-5},
}

TY - CONF

JO - Proceedings of the International Conference on Signal Processing and Multimedia Applications - Volume 1: SIGMAP, (ICETE 2010)
TI - ARITHMETIC CODING FOR JOINT SOURCE-CHANNEL CODING
SN - 978-989-8425-19-5
AU - Spiteri T.
AU - Buttigieg V.
PY - 2010
SP - 5
EP - 14
DO - 10.5220/0002944400050014

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