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Proceedings Paper

Optimal bit allocation for hybrid scalable/multiple-description video transmission over wireless channels
Author(s): Mohammad K. Jubran; Manu Bansal; Lisimachos P. Kondi
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Paper Abstract

In this paper, we consider the problem of optimal bit allocation for wireless video transmission over fading channels. We use a newly developed hybrid scalable/multiple-description codec that combines the functionality of both scalable and multiple-description codecs. It produces a base layer and multiple-description enhancement layers. Any of the enhancement layers can be decoded (in a non-hierarchical manner) with the base layer to improve the reconstructed video quality. Two different channel coding schemes (Rate-Compatible Punctured Convolutional (RCPC)/Cyclic Redundancy Check (CRC) coding and, product code Reed Solomon (RS)+RCPC/CRC coding) are used for unequal error protection of the layered bitstream. Optimal allocation of the bitrate between source and channel coding is performed for discrete sets of source coding rates and channel coding rates. Experimental results are presented for a wide range of channel conditions. Also, comparisons with classical scalable coding show the effectiveness of using hybrid scalable/multiple-description coding for wireless transmission.

Paper Details

Date Published: 19 January 2006
PDF: 12 pages
Proc. SPIE 6077, Visual Communications and Image Processing 2006, 60770D (19 January 2006); doi: 10.1117/12.643605
Show Author Affiliations
Mohammad K. Jubran, Univ. at Buffalo, State Univ. of New York (United States)
Manu Bansal, Univ. at Buffalo, State Univ. of New York (United States)
Lisimachos P. Kondi, Univ. at Buffalo, State Univ. of New York (United States)

Published in SPIE Proceedings Vol. 6077:
Visual Communications and Image Processing 2006
John G. Apostolopoulos; Amir Said, Editor(s)

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