Performance analysis of decode-and-forward relaying with selection combining
Performance analysis of decode-and-forward relaying with selection combining
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DOI：
10.1109/lcomm.2007.070065
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发表时间：
2007-06-01
期刊：
影响因子：
--
通讯作者：
Beaulieu, Norman C.
中科院分区：
文献类型：
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作者：
Hu, Jeremiah;Beaulieu, Norman C.
分布式空间分集系统利用多个通信节点来创建在目的地处组合的独立信号副本。实际的分集接收机通常采用简单的组合技术，特别是如果可以实现与更复杂的最佳组合相当的性能。研究了采用选择合并的解码转发中继的性能。特别地，推导了具有任意数目中继节点的系统的中断概率的封闭形式的表达式。通过比较使用选择组合的系统的性能，使用最佳的最大比组合的一个，它示出，由于使用一个不太复杂的组合器的性能损失是不是实质性的。
Distributed spatial diversity systems utilize multiple communication nodes to create independent signal replicas that are combined at the destination. Practical diversity receivers often employ simple combining techniques especially if comparable performance to more complex optimum combining can be achieved. The performance of decode-and-forward relaying that uses selection combining is investigated. In particular, a closed-form expression for the outage probability of a system with an arbitrary number of relay nodes is derived. By comparing the performance of a system that uses selection combining to one that uses optimum maximal ratio combining, it is shown that the performance loss due to using a less complex combiner is not substantial.