认知无线电中基于干扰温度的信道容量及中断概率  

Capacity and Outage Probability Analysis of Cognitive Radio Networks Based on Interference Temperature

作　　者：胡智伦[1] 何世彪[1] 张新春[1] 

机构地区：[1]重庆通信学院,重庆400035

出　　处：《重庆理工大学学报（自然科学）》2010年第6期83-88,共6页Journal of Chongqing University of Technology：Natural Science

基　　金：重庆市自然科学基金资助项目(CSTC20072017)

摘　　要：在干扰温度模型的基础上,结合传输功率的限制,探讨了信道容量与带宽的关系,并分析了不同衰减信道中认知用户的信道容量及其中断概率。仿真结果表明:在不超过干扰容限的情况下,在一定范围内增加带宽或干扰温度冗余度时,信道容量也逐渐增加并趋于稳定。The capacity and outage probability in cognitive radio networks for different fading channels was studied by using the interference temperature model and transmit power constraint.Moreover,the connection of capacity with bandwith was also discussed.Simulation results show that under the limit of interference temperature change,the capacity increased gradually and went to stabilization at last with the increase of interference temperature or bandwidth at certain range.

关 键 词：认知无线电 干扰温度 信道容量 中断概率 

分 类 号：TN911[电子电信—通信与信息系统]