Quantized Frame Expansions as Source-Channel Codes for Erasure Channels
نویسندگان
چکیده
Quantized frame expansions are proposed as a method for generalized multiple description coding where each quantized coe cient 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
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تاریخ انتشار 1999