中继节点随机均匀分布的机会中继

本文研究了中继节点空间随机均匀分布时，采用机会中继进行协作通信。在路径损耗及块衰落独立信道条件下，推导和分析了两节点间采用传统中继结合机会中继以及增量中继结合机会中继两种方式下的中断概率。数值仿真结果表明，虽然中继节点的空间随机分布破坏了高信噪比条件下中继节点能够提高的分集阶数，但机会中继仍比直接通信有更好的抗信道衰落能力。 

Opportunistic Relaying Based on the Randomly Distributed Relay Nodes

In this paper,we consider opportunistic relaying for cooperative communications when the relay nodes randomly and uniformly distributed in space.In the condition of the path loss and block fading channels,we derive the outage probability of the traditional relaying with opportunistic relaying and the incremental relaying with opportunistic relaying.The numerical simulation results show that,although the random distribution of nodes destroys the expected diversity gain offered by relaying nodes,the opportuni...