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
Date of Conference: 2002