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Proceedings Paper

Multiresolution modulation for efficient broadcast of information
Author(s): Mika Grundstrom; Markku Renfors
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Paper Abstract

Methods for reliable transmission of information, especially digital television, are considered. In the broadcast channel, several different receiver configurations and channel conditions make an optimization of the channel coding practically impossible. To efficiently utilize available spectrum and to allow robust reception in adverse channel conditions, joint source- channel coding is applied. This is achieved utilizing multiresolution modulation combined with unequal error protection in the channel coding part and data prioritization in source coder. These design parameters for the joint system are considered. The emphasis of this paper is on the modulation part. Multiresolution 32 QAM is presented. Simulations show good performance in the additive white gaussian noise channel and, moreover, results in multipath fading channel are encouraging as far as high priority level of the data is considered.

Paper Details

Date Published: 16 September 1994
PDF: 9 pages
Proc. SPIE 2308, Visual Communications and Image Processing '94, (16 September 1994); doi: 10.1117/12.186033
Show Author Affiliations
Mika Grundstrom, Tampere Univ. of Technology (Finland)
Markku Renfors, Tampere Univ. of Technology (Finland)

Published in SPIE Proceedings Vol. 2308:
Visual Communications and Image Processing '94
Aggelos K. Katsaggelos, Editor(s)

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