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On the utilization of residual source redundancy for iterative joint source-channel decoding of variable-length codes

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2 Author(s)
Kliewer, J. ; Inst. for Circuits & Syst. Theor., Kiel Univ., Germany ; Thobaben, R.

We present a novel symbol-based a posteriori probability (APP) decoder for packetized variable-length encoded source indices transmitted over wireless channels, which exploits residual index correlations after source encoding for error correction. By additionally protecting the variable-length encoded bitstream with channel codes, an iterative decoding scheme can be obtained where the proposed APP source decoder serves as constituent decoder.

Published in:

Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on

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