本文提出了一种基于无线网络编码的协作通信机制NCCC.无线网络编码能够在取得合作分集的性能增益的同时,降低网络中断概率.分布式中继节点选择算法是NCCC机制的核心,该算法根据即时信道状态,选择执行网络编码操作的最优中继节点.理论和仿真结果证明,NCCC机制可以提高无线网络双向多信源多信宿传输的性能和鲁棒性.
A network coding based cooperative communication mechanism(NCCC) is proposed.Wireless network coding can suppress outrage probability when achieving the performance gain by cooperative diversity.A distributed algorithm of relay selection can maximize the average capacity by choosing the appropriate set of relay nodes for the operation of network coding according to the instantaneous link condition.The theoretic and simulation results show that NCCC can enhance the robustness and performance for bidirectional data transmission between multi-source and multi-destination in wireless network.