单播网络中基于物理层网络编码的协作传输方案设计  

Design of the Cooperation Transmission Based on Physical-Layer Network Coding in Network with Unicast Transmission

作　　者：李璐瑶[1,2] 王静[1] 戴明[1,2] 樊娜[1] 

机构地区：[1]长安大学信息工程学院,陕西西安710064 [2]中国交通通信信息中心,北京100011

出　　处：《微电子学与计算机》2014年第11期173-176,共4页Microelectronics & Computer

基　　金：交通运输部科技项目(2012-364-208-600)

摘　　要：协作传输可以获得空间分集增益,有效地抵制由于无线网络多径传播引起的信号衰落.针对单播传输的无线中继网络,提出一种基于物理层网络编码的协作传输方案.理论分析表明,该协作传输方案相对于传统协作传输方案以及基于Straightforward网络编码的协作传输方案,可有效减少传输时隙,获得较高的网络吞吐量.并且对基于物理层网络编码的协作传输方案的SEP性能进行了实验仿真.Cooperation transmission can combat signal fading caused by multipath propagation in wireless networks , and consequently achieve spatial diversity gains .For wireless relay network with unicast transmission ,a novel cooperation scheme based on physical-layer network coding is proposed in this paper .Theoretic analysis shows that , compared with traditional cooperation transmission scheme and the cooperation scheme based on straightforward network coding ,this cooperation scheme can decrease transmission slots efficiently ,and obtain higher network throughput .Furthermore ,its symbol error probability performance is simulated for different SNR values .

关 键 词：单播传输 无线中继网络 协作通信 网络吞吐量 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]