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Channels With Cooperation Links That May Be Absent

机译:可能缺少合作链接的渠道

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摘要

It is well known that cooperation between users in a communication network can lead to significant performance gains. A common assumption in past works is that all the users are aware of the resources available for cooperation, and know exactly to what extent these resources can be used. Unfortunately, in many modern communication networks, the availability of cooperation links cannot be guaranteed a priori, due to the dynamic nature of the network. In this paper, a family of models is suggested where the cooperation links may or may not be present. Coding schemes are devised that exploit the cooperation links if they are present, and can still operate (although at reduced rates) if cooperation is not possible.
机译:众所周知,通信网络中用户之间的合作可以导致显着的性能提升。在过去的工作中,一个普遍的假设是所有用户都知道可用于合作的资源,并且确切地知道可以在多大程度上使用这些资源。不幸的是,由于网络的动态特性,在许多现代通信网络中,不能事先保证合作链路的可用性。本文提出了一个模型系列,其中可能存在或可能不存在合作链接。设计了一种编码方案,该方案利用合作链接(如果存在),并在无法进行合作时仍可以运行(尽管速率降低)。

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