中文摘要：

尽管一个新通讯范例出现、合作通讯正在吸引注意。继电器选择是为合作通讯的关键技术，并且决定合作的表演获得是否能被完成。在这份报纸，我们首先为继电器选择算法给表演评估度量标准，然后讨论相应范畴。最后，一些古典继电器选择算法被分析。结果证明继电器节点应该严重被选择并且根据系统要求设置了以便优化合作通讯的表演。

英文摘要：

Emerging as a new communication paradigm, cooperative communication is attracting attention. Relay selection is the key technology for cooperative communication, and determines whether the performance gain of cooperation can be achieved. In this paper, we first give the performance evaluation metrics for relay selection algorithms, and then discuss the corresponding categories. Finally, some classical relay selection algorithms are analyzed. Results show that the relay node should be seriously selected and configured according to system requirements in order to optimize the performance of cooperative communication.