Performance of a Dual-Hop Multi-relay Cooperative Network in a Nakagami-m Fading Environment  

作　　者：Lu Jihua An Jianping Li Xiangming 

机构地区：[1]School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,P.R.China

出　　处：《China Communications》2012年第4期55-62,共8页中国通信（英文版）

基　　金：supported by Important National Science ＆ Technology Specific Projects under Grant No.CX01011;the Important National Science ＆ Technology Specific Projects under Grant No.4101002;the National Natural Science Foundation of China under Grants No.61002014,No.60972017,No.60972018;the Excellent Young Teachers Program of MOE,PRC under Grant No.2009110120028;the Research Fund for the Doctoral Program of Higher Education under Grants No.20091101110019,No.20070007019

摘　　要：An exact average symbol error rate analysis for the distributed dual-hop relay cooperative network with multiple relays in a Nakagami-m fading environment is presented.In the derivation of the moment generation function of receiver Signal-to-Noise Ratio(SNR),the sectional integral method is used,instead of the cumulative density function method which is ordinarily used by the deduction of the outage probability of S-R-D link.The accurate symbol error rate of a dual-hop relay cooperative network is obtained with the closed-form Moment Genoration Function (MGF) expression.The correctness of the symbol error rate is verified through numerical simulations and is compared with other analytical methods.These deductions clearly show that the distributed cooperative diversity network presented has strong superiorities in overcoming severe fading and can achieve full diversity order.An exact average symbol error rate analysis for the distributed dual-hop relay cooperative network with multiple relays in a Nakagami-m fading environment is presented.In the derivation of the moment generation function of receiver Signal-to-Noise Ratio（SNR）,the sectional integral method is used,instead of the cumulative density function method which is ordinarily used by the deduction of the outage probability of S-R-D link.The accurate symbol error rate of a dual-hop relay cooperative network is obtained with the closed-form Moment Genoration Function （MGF） expression.The correctness of the symbol error rate is verified through numerical simulations and is compared with other analytical methods.These deductions clearly show that the distributed cooperative diversity network presented has strong superiorities in overcoming severe fading and can achieve full diversity order.

关 键 词：dual-hop relay cooperative communication average symbol error rate closed-form MGF AMPLIFY-AND-FORWARD Nakagami-m fading 

分 类 号：TN929.5[电子电信—通信与信息系统] O414.2[电子电信—信息与通信工程]