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arXiv 1102.4930cs.ITmath.IT
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短消息量化-前向网络编码

Short-Message Quantize-Forward Network Coding

Gerhard Kramer, Jie Hou

摘要:

单中继信道的最新研究表明,长消息编码的量化前向(QF)与短消息编码的压缩前向(CF)具有相同的可靠速率。结果表明,短消息QF与向后或流水线(滑动窗口)解码也达到相同的速率。类似地,对于许多中继和源,具有后向解码的短消息QF实现与长消息QF相同的速率。指出了短消息编码的几个实际优点,例如,减少延迟和更简单的调制。此外,短消息编码让中继使用解码转发(DF),如果他们的信道质量是好的,从而实现多输入,多输出(MIMO)增益是不可能与长消息编码。最后,可以通过将长消息散列为短消息来组合长消息和短消息编码的优点。

英文摘要:

Recent work for single-relay channels shows that quantize-forward (QF) with long-message encoding achieves the same reliable rates as compress-forward (CF) with short-message encoding. It is shown that short-message QF with backward or pipelined (sliding-window) decoding also achieves the same rates. Similarly, for many relays and sources, short-message QF with backward decoding achieves the same rates as long-message QF. Several practical advantages of short-message encoding are pointed out, e.g., reduced delay and simpler modulation. Furthermore, short-message encoding lets relays use decode-forward (DF) if their channel quality is good, thereby enabling multiinput, multi-output (MIMO) gains that are not possible with long-message encoding. Finally, one may combine the advantages of long- and short-message encoding by hashing a long message to short messages.

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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