一种认知无线电网络接入控制和功率控制联合设计  

A JOINT DESIGN OF ADMISSION CONTROL AND POWER CONTROL FOR COGNITIVE RADIO NETWORKS

作　　者：胡首都[1] 胡捍英[1] 仵国锋[1] 

机构地区：[1]解放军信息工程大学信息工程学院,河南郑州450002

出　　处：《计算机应用与软件》2011年第9期70-72,76,共4页Computer Applications and Software

基　　金：国家重大科技专项资助项目(2009ZX03003-007)

摘　　要：在underlay频谱共享模式下,提出一种认知无线电网络接入控制和功率控制的联合算法。该算法针对主用户干扰温度和次用户信号干扰噪声比(SINR)限制,通过引入冲突因子,实现网络自适应调整被拒绝参与频谱共享的次用户数目,通过迭代进行接入控制和功率分配实现频谱共享。仿真结果表明,该算法能够保证接入共享主网络频带的次用户数近似最优,而且缩短了接入控制的时间。The paper proposes a joint algorithm of admission control and power control for cognitive radio networks under the underlay spectrum sharing mode.The algorithm emphasizes on the primary user interference temperature and secondary user signal interference noise ratio restriction,by incorporating conflict coefficients,realizes the network adaptive adjustment of the number of rejected spectrum sharing secondary users.Spectrum sharing is realized by iterative admission control and power allocation.Emulation results demonstrate the algorithm can ensure the approximate optimal number of secondary users to get admission to sharing the main network frequency band,moreover,reduces the delay for admission control.

关 键 词：认知无线电 接入控制 功率控制 联合 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]