The multiple access channel with two independent states each known causally to one encoder
The multiple access channel with two independent states each known causally to one encoder
复制标题
具有两个独立状态的多路访问信道，每个状态对于一个编码器来说都是因果已知的
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Y. Steinberg
中科院分区：
文献类型：
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作者：
A. Lapidoth;Y. Steinberg
我们研究了状态相关的多址接入信道（MAC）与因果边信息的编码器。信道状态由两个独立分量S1和S2组成，分别在编码器1和编码器2处可用。状态仅在一个编码器处可用的问题是特殊情况。我们考虑两种情况。在第一种情况下，状态以严格因果的方式在编码器处可用。我们推导出一个可实现的区域，这是紧的高斯MAC的状态序列包括信道噪声，并可在编码器之一。在第二种情况下，状态序列以因果方式可用于编码器，如香农模型中那样。一个简单的推广以前的结果香农策略产生一个可并行性的结果。我们的区域包含作为特殊情况的天真率区域时，每个用户应用香农策略。在某些情况下，包含是严格的。
We study the state-dependent multiple access channel (MAC) with causal side information at the encoders. The channel state consists of two independent components, S1 and S2, available at Encoder 1 and Encoder 2, respectively. The problem where the state is available at only one of the encoders is a special case . We consider two scenarios. In the first, the states are available at the encoders in a strictly causal manner. We derive an achievable region, which is tight for a Gaussian MAC where the state sequence comprises the channel noise and is available at one of the encoders only. In the second scenario the state sequence is available to the encoders in a causal manner, as in Shannon's model. A simple extension of the previous result to Shannon strategies yields an achievability result. Our region contains as a special case the naïve rate region obtained when each of the users applies Shannon strategies. In some cases the inclusion is strict.