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arXiv 0711.0237cs.ITmath.IT
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零速率反馈可以实现经验容量

Zero-rate feedback can achieve the empirical capacity

Krishnan Eswaran, Anand D. Sarwate, Anant Sahai, Michael Gastpar

摘要:

有限反馈的效用,用于在一个单独的DMC序列的编码进行了研究。这项研究补充了最近的结果,这些结果表明有限或嘈杂的反馈可以提高沟通的可靠性。给出了一种具有固定输入分布$P$的策略,该策略渐近地实现任意接近由$P$和状态平均信道引起的互信息的速率。当实现输入分布的容量在所有信道状态上相同时,这实现至少与状态平均信道的容量一样大的速率,有时称为经验容量。

英文摘要:

The utility of limited feedback for coding over an individual sequence of DMCs is investigated. This study complements recent results showing how limited or noisy feedback can boost the reliability of communication. A strategy with fixed input distribution $P$ is given that asymptotically achieves rates arbitrarily close to the mutual information induced by $P$ and the state-averaged channel. When the capacity achieving input distribution is the same over all channel states, this achieves rates at least as large as the capacity of the state averaged channel, sometimes called the empirical capacity.

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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