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LDPC Code Design for Asynchronous Slepian-Wolf Coding
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DOI：10.1109/TCOMM.2010.02.090034.png)
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摘要
En 中文
We consider asynchronous Slepian-Wolf coding where the two encoders may not have completely accurate timing information to synchronize their individual block code boundaries, and propose LDPC code design in this scenario. A new information-theoretic coding scheme based on source splitting is provided, which can achieve the entire asynchronous Slepian-Wolf rate region. Unlike existing methods based on source splitting, the proposed scheme does not require common randomness at the encoder and the decoder, or the construction of super-letter from several individual symbols. We then design LDPC codes based on this new scheme, by applying the recently discovered source-channel code correspondence. Experimental results validate the effectiveness of the proposed method.
Keyword:
Belief propagation
low density parity check codes
Slepian-Wolf coding
source splitting
期刊
IF:
8.3
论文数:
1.2W
被引数:
3.6W
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