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Error Resilient Turbo Compression of Source Codec Parameters Using Inner Irregular Codes

Authors:

Laurent Schmalen and Peter Vary

Book Title:

Proceedings of International ITG Conference on Source and Channel Coding (SCC)

Venue:

Siegen, Germany

Organization:

Informationstechnische Gesellschaft (ITG)

Publisher:

VDE Verlag GmbH

Date:

Jan. 2010

ISBN:

978-3-80073-211-1

ISSN:

0932-6022

Language:

English

Abstract

In this paper, we present a novel near-lossless compression scheme for scalar quantized source codec parameters. The scheme is comparable to a Turbo source coding approach and can inherently incorporate protection against transmission errors. We show that using the concept of EXIT charts and inner irregular convolutional codes of rate >1, a linear programming optimization problem can be formulated resulting in the minimization of the transmitted number of bits given a certain channel quality. The solution of this problem leads to an irregular inner code offering the best possible compression. The advantage of this method in comparison to a previous proposal is the easy adaptability to varying source conditions.

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