Diversity order of multiuser two-way relay networks with beamforming over Nakagami-m fading channels  

作　　者：GUO Hui GE JianHua 

机构地区：[1]State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an 710071, China [2]Department of Communication Engineering, Henan Polytechnic University, Jiaozuo 454003, China

出　　处：《Science China(Information Sciences)》2011年第9期1986-1990,共5页中国科学（信息科学）（英文版）

基　　金：supported by the Program for Changjiang Scholars and Innovative Research Team in University(Grant No. IRT0852);the Natural Science Foundation of Guangdong Province (Grant No. U0635003);the National Major Specialized Project of Science and Technology of China (Grant No. 2009ZX03003-003/004);the "111" Project (Grant No. B08038)

摘　　要：The diversity performance of multiuser two-way relay networks is investigated over Nakagami-m fading channels. We consider an amplify-and-forward relay network with beamforming at the base station and all the mobile stations, and derive closed-form lower and upper bounds on the outage probabilities of two unidirectional links, respectively. Moreover, the exact expression for the diversity order and the asymptotic expressions for the outage probabilities of two unidirectional links are given too. Finally, simulation results are presented to verify our formulations.The diversity performance of multiuser two-way relay networks is investigated over Nakagami-m fading channels. We consider an amplify-and-forward relay network with beamforming at the base station and all the mobile stations, and derive closed-form lower and upper bounds on the outage probabilities of two unidirectional links, respectively. Moreover, the exact expression for the diversity order and the asymptotic expressions for the outage probabilities of two unidirectional links are given too. Finally, simulation results are presented to verify our formulations.

关 键 词：two-way relay MULTIUSER BEAMFORMING diversity order 

分 类 号：TN929.533[电子电信—通信与信息系统] TN929.5[电子电信—信息与通信工程]