Spectral Efficient Cooperative Relaying Techniques via Physical Network Coding

摘要：

In order to avoid the loss of spectral efficiency (throughput) caused by half-duplex mode and further improve achievable throughput performance of wireless multi-hop network,a relaying technique that utilizes two sets of relays and physical network coding over bi-directional traffic flows is introduced.We term such technique as Bi-directional Successive Relaying based on Physical Network Coding (PNC-BSR).The whole scheme is based upon two key elements: a) To combat the half-duplex constraint by having two cooperative relays transmitting alternatively at every hop,i.e.,the one receiving while the other transmitting and vice versa,and b) to enhance the throughput performance using physical network coding at relay nodes.Numerical results show that at high signal-tonoise ratio (SNR) regime,PNC-BSR offers a superior throughput performance.

作者: Bo Yang Hongyi Yu Ling Lv Qiang Feng

作者单位: Department of Communication Engineering Information Science and Technology Institute Zhengzhou,Henan,P.R.China

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）