Quantized Frame Expansions as Source Channel Codes for Erasure Channels

Authors:
Vivek K. Goyal;Jelena Kovacevic;Martin Vetterli
Affiliations:
-;-;-
Venue:
DCC '99 Proceedings of the Conference on Data Compression
Year:
1999

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Abstract

Quantized frame expansions are proposed as a method for generalized multiple description coding, where each quantized coefficient is a description. Whereas previous investigations have revealed the robustness of frame expansions to additive noise and quantization, this represents a new application of frame expansions. The performance of a system based on quantized frame expansions is compared to that of a system with a conventional block channel code. The new system performs well when the number of lost descriptions (erasures on an erasure channel) is hard to predict.