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Cooperative Binning for Semideterministic Channels

机译:半确定性渠道的合作装箱

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摘要

The capacity regions of semideterministic multiuser channels, such as the semideterministic relay channel and the multiple access channel with partially cribbing encoders, have been characterized using the idea of partial-decode-forward. However, the requirement to explicitly decode part of the message at intermediate nodes can be restrictive in some settings; for example, when nodes have different side information regarding the state of the channel. In this paper, we generalize this scheme to cooperative-bin-forward by building on the observation that explicit recovering of part of the message is not needed to induce cooperation. Instead, encoders can bin their received signals and cooperatively forward the bin index to the decoder. The main advantage of this new scheme is illustrated by considering state-dependent extensions of the aforementioned semideterministic setups. While partial-decode-forward is suboptimal in these new setups, cooperative-bin-forward continues to achieve capacity.
机译:半确定性多用户信道的容量区域,例如半确定性中继信道和具有部分抄写编码器的多路访问信道,已经使用部分解码前向的思想进行了表征。但是,在某些设置中,要求对中间节点的消息进行显式解码的要求可能会受到限制。例如,当节点对信道状态具有不同的辅助信息时。在本文中,我们基于观察到不需要部分消息的显式恢复来引发合作的观察,将这种方案推广到合作bind转发。取而代之的是,编码器可以对接收到的信号进行合并,然后将合并索引转发给解码器。通过考虑上述半确定性设置的状态相关扩展来说明此新方案的主要优点。尽管在这些新设置中部分解码前送不是最理想的,但协作箱前送仍在继续实现容量。

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