Single carrier frequency domain equalization and diversity combining for cooperative systems  

作　　者：熊骇韬 Xu Jing Wang Ping 

机构地区：[1]Shanghai Institute of Microsvstem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, P. R. China [2]Shanghai Research Center for Wireless Communications, Shanghai 200050, P.R. China

出　　处：《High Technology Letters》2009年第1期75-79,共5页高技术通讯（英文版）

基　　金：Supported by the National High Technology Research and Development Programme of China (No. 2007AA01Z278, No. 2005AA123510)

摘　　要：A low-complexity single carrier frequency-domain equalizer （SC/FDE） and diversity combining method for cooperative systems with demodulate-and-forward relaying over frequency-selective channels is proposed. At the relay nodes, linear SC/FDE is adopted and normalized correlation coefficlent is mtrodueed to derive an equivalent source-to-relay-destination （S-R-D） channel that is highlighted in this study. At the destination, a joint SC/FDE and diversity combining receiver is proposed by utilizing the equivalent S-R-D channel. Simulation results demonstrate the superiority of the proposed SC/FDE scheme over the straightforward SC/FDE which ignores the decisions errors at the intermediate relay nodes.A low-complexity single carrier frequency-domain equalizer(SC/FDE)and diversity combiningmethod for cooperative systems with demodulate-and-forward relaying over frequency-selective channels isproposed.At the relay nodes,linear SC/FDE is adopted and normalized correlation coefficient is intro-duced to derive an equivalent source-to-relay-destination(S-R-D)channel that is highlighted in thisstudy.At the destination,a joint SC/FDE and diversity combining receiver is proposed by utilizing the e-quivalent S-R-D channel.Simulation results demonstrate the superiority of the proposed SC/FDE schemeover the straightforward SC/FDE which ignores the decisions errors at the intermediate relay nodes,

关 键 词：demodulate-and-forward single cartier frequency-domain equalization （SC/FDE） relay- channel cooperative diversity 

分 类 号：TN925[电子电信—通信与信息系统]