Symbol error probabilities for general cooperative links
Symbol error probabilities for general cooperative links
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DOI：
10.1109/icc.2004.1313169
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发表时间：
2004-06
期刊：
影响因子：
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通讯作者：
Alejandro Ribeiro;Xiaodong Cai;G. Giannakis
中科院分区：
文献类型：
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作者：
Alejandro Ribeiro;Xiaodong Cai;G. Giannakis
协作分集(CD)网络作为一种提高误码性能和容量的分布式手段，近年来受到了广泛的关注。推导了放大和前向CD链路的平均误码率(SEP)。所得到的表达式是通用的，因为它们适用于任意数目的协作分支、任意数目的每个分支的协作跳数以及许多信道衰落模型。它们的简单性为CD网络的性能提供了有价值的见解，并允许对其进行优化。除了揭示分集优势外，它们还清楚地显示了这种优势的来源，并证明了分集优势独立于信道衰落模型而存在。最后，解释如何在多跳CD网络中提高分集。
Cooperative diversity (CD) networks have been receiving a lot of attention recently as a distributed means of improving error performance and capacity. This paper derives the average symbol error probability (SEP) for amplify and forward CD links. The resulting expressions are general as they hold for an arbitrary number of cooperating branches, arbitrary number of cooperating hops per branch, and many channel fading models. Their simplicity provides valuable insights to the performance of CD networks and allows their optimization. Besides revealing the diversity advantage, they clearly show from where this advantage comes from and prove that the diversity advantage holds independently of the channel fading model. Finally, explain how diversity is improved in multihop CD networks.