基于频谱排名的动态频谱接入技术  

Dynamic Spectrum Access Technique Based on Spectrum Ranking

作　　者：刘双[1] 王荣[2] 蒲涛[2] 

机构地区：[1]解放军理工大学通信工程学院研究生4队,江苏南京210007 [2]解放军理工大学通信工程学院电信工程系

出　　处：《军事通信技术》2010年第2期73-76,共4页Journal of Military Communications Technology

摘　　要：为了解决认知无线电网络中随机频谱接入的高冲撞率问题,提出了能表征频谱质量的"频谱分"指标,其高可信度来源于可信度协作检测,并提出了一种新的基于频谱排名的动态频谱接入方法,优先选择高排名的频谱接入。理论分析和仿真结果表明,此方法能够比随机接入的方法明显地减小冲突概率,节省网络资源,提高系统性能。To solve the high collision probability problem involved in the spectrum random access method in cognitive networks,the 'spectrum-mark' index was presented as a sign of spectrum quality,a new dynamic spectrum access technique based on spectrum ranking was proposed.The high credibility of the spectrum-mark comes from credibility cooperation detection,and the prior choice is to choose the spectrum with higher rank to use.Theoretical analysis and simulation results indicate that,compared with random access method,this one can reduce collision probability,save network resources,and improve system performance obviously.

关 键 词：认知无线电 可信度协作检测 频谱分 频谱排名 动态频谱接入 

分 类 号：TN92[电子电信—通信与信息系统]