摘要
Given imperfect channel state information(CSI)and considering the interference from the primary transmitter,an underlay cognitive multisource multidestination relay network is proposed.A closed-form exact outage probability and asymptotic outage probability are derived for the secondary system of the network.The results show that the outage probability is influenced by the source and destination number,the CSI imperfection as well as the interference from the primary transmitter,while the diversity order is independent of the CSI imperfection and the interference from the primary transmitter,yet it is equal to the minimum of the source and destination number.Moreover,extensive simulations are conducted with different system parameters to verify the theoretical analysis.
Given imperfect channel state information(CSI) and considering the interference from the primary transmitter, an underlay cognitive multisource multidestination relay network is proposed. A closed-form exact outage probability and asymptotic outage probability are derived for the secondary system of the network. The results show that the outage probability is influenced by the source and destination number, the CSI imperfection as well as the interference from the primary transmitter, while the diversity order is independent of the CSI imperfection and the interference from the primary transmitter, yet it is equal to the minimum of the source and destination number. Moreover, extensive simulations are conducted with different system parameters to verify the theoretical analysis.
作者
Liu Shuai
Sun Dechun
Liu Zujun
Yi Kechu
Yang Hong
Wang Kan
刘帅;Sun Dechun;Liu Zujun;Yi Kechu;Yang Hong;Wang Kan(State Key Laboratory of Integrated Services Networks,Xidian University,Xi’an 710071,P.R.China;China Academy of Space Technology,Beijing 100094,P.R.China;Faculty of Computer Science and Engineering,Xi’an University of Technology,Xi’an 710048,P.R.China)
基金
Supported by the National Natural Science Foundation of China(No.61301170,61571340)
the Fundamental Research Funds for the Central Universities(No.JB150109)
the 111 Project(No.B08038)
