认知无线电快速控制信道选择算法  

A Fast Control Channel Selection Algorithm for Cognitive Radio

作　　者：王首峰[1,2] 李凡[1] 王卫东[1] 张英海[1] 

机构地区：[1]泛网无线通信教育部重点实验室(北京邮电大学),北京100876 [2]中国移动通信集团设计院有限公司,北京100080

出　　处：《北京邮电大学学报》2011年第5期80-85,共6页Journal of Beijing University of Posts and Telecommunications

基　　金：国家高技术研究发展计划项目(2009AA01Z242);国家自然科学基金项目(60972080)

摘　　要：提出了快速控制信道选择算法用来提高控制信道的可靠性和有效性.算法利用了信号收发和处理所产生的时延,实现了次用户间快速交换控制信息的目的;优化了频谱空洞选择过程,降低了控制信道占用的频谱空洞比例;通过临时借用业务信道所用频谱空洞抵抗主用户占用频谱空洞造成的控制信道中断.理论推导和仿真验证结果证明了该算法在性能上的提升.Fast control channel selection algorithm for cognitive radio is proposed. Firstly, the delay caused by signal transmitting and processing is utilized to achieve fast control information exchange. Secondly, the process of spectrum-hole selection is optimized, that will decrease the number of the spectrum holes used for control channel. Finally, the control channel interruption, caused by the reappearance of primary users on spectrum hole, is significantly avoided. Derivations and simulations prove the increase of the performance on the above mentioned aspects.

关 键 词：认知无线电 频谱空洞 控制信道 中断概率 信号形式 

分 类 号：TN929.53[电子电信—通信与信息系统]