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arXiv 1102.1165cs.ITmath.IT
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具有相关信道状态和协作编码器的多址接入信道的可变速率区域

Achievable Rate Region for Multiple Access Channel with Correlated Channel States and Cooperating Encoders

Mahdi Zamanighomi, Mohammad Javad Emadi, Farhad Shirani Chaharsooghi, Mohammad Reza Aref

摘要:

在本文中,两个用户的离散无记忆多址接入信道(DM-MAC)的相关信道状态,每个已知的编码器之一,其中每个编码器发送独立的消息,并试图与其他合作。为了考虑协作编码器,假设每个编码器严格因果地接收和学习另一编码器的发送符号,并试图通过发送其消息与另一编码器协作。接下来,我们在一个特殊的情况下研究这个信道;我们假设两个状态的公共部分都是已知的,因此编码器利用这个机会来获得更好的速率区域。对于这些场景,可实现的速率区域是基于块马尔可夫编码和Gelfand-Pinsker编码技术的组合而导出的。此外,建立了高斯信道的可达速率域,并证明了在一定条件下可达容量域。

英文摘要:

In this paper, a two-user discrete memoryless multiple-access channel (DM-MAC) with correlated channel states, each known at one of the encoders is considered, in which each encoder transmits independent messages and tries to cooperate with the other one. To consider cooperating encoders, it is assumed that each encoder strictly-causally receives and learns the other encoder's transmitted symbols and tries to cooperate with the other encoder by transmitting its message. Next, we study this channel in a special case; we assume that the common part of both states is known at both, hence encoders use this opportunity to get better rate region. For these scenarios, an achievable rate region is derived based on a combination of block-Markov encoding and Gel'fand-Pinsker coding techniques. Furthermore, the achievable rate region is established for the Gaussian channel, and it is shown that the capacity region is achieved in certain circumstances.

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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