Distributed joint source-channel coding of correlated binary sources in wireless sensor networks
作者： Iqbal Shahid , Pradeepa Yahampath
DOI: 10.1109/ISWCS.2011.6125345
关键词:
摘要: In this paper, we present a distributed joint source-channel (DJSC) coding approach for pair of correlated binary sources transmitted over independent symmetric channels. This problem is interest in wireless sensor network applications, where encoders with low complexity and delay may be required. the proposed method, judiciously chosen fraction information bits parity obtained by puncturing output systematic channel code are each source. We obtain achievable rate region scheme show that it coincides Slepian-Wolf lower bound as error probability approaches zero. Experimental results practical implementation based on LDPC codes also presented which demonstrate short block lengths (or coding), DJSC method outperforms separate source coding.
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