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arXiv 0810.2352cs.ITmath.IT
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具有相关接收机侧信息的干扰信道

Interference Channels with Correlated Receiver Side Information

Nan Liu, Deniz Gunduz, Andrea J. Goldsmith, H. Vincent Poor

摘要:

研究了在接收端信息相关的干扰信道上传输独立信源的联合信源-信道编码问题。当每个接收机的边信息与自己的期望源,它表明,源信道码分离是最佳的。当每个接收机具有与干扰源相关的边信息时,基于使用Han和Kobayashi的叠加编码和部分解码思想的联合信源-信道编码方案,提供了可靠传输的充分条件。当接收器侧信息是干扰源的确定性函数时,源信道码分离再次被证明是最优的。作为特殊情况,对于一类Z干扰信道,当接收机面对干扰的边信息是干扰源的确定性函数时,以单字母表达式的形式提供了可靠传输的充分必要条件。作为这些联合信源-信道编码结果的副产品,还提供了具有退化消息集的一类Z信道的容量区域。

英文摘要:

The problem of joint source-channel coding in transmitting independent sources over interference channels with correlated receiver side information is studied. When each receiver has side information correlated with its own desired source, it is shown that source-channel code separation is optimal. When each receiver has side information correlated with the interfering source, sufficient conditions for reliable transmission are provided based on a joint source-channel coding scheme using the superposition encoding and partial decoding idea of Han and Kobayashi. When the receiver side information is a deterministic function of the interfering source, source-channel code separation is again shown to be optimal. As a special case, for a class of Z-interference channels, when the side information of the receiver facing interference is a deterministic function of the interfering source, necessary and sufficient conditions for reliable transmission are provided in the form of single letter expressions. As a byproduct of these joint source-channel coding results, the capacity region of a class of Z-channels with degraded message sets is also provided.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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