Adaptive Cooperation Algorithm for Cognitive Radio Networks
Spectrum sensing plays an important role in cognitive radios, of which a feasible method that fulfills both detection agility and users’ mobility requirement remains unknown. In this paper, we identify the trend that mobility of cognitive users should be considered in near future and propose using Ultra Wide Band (UWB) positioning system to fulfill mobility requirements and high-precision radiolocation. Most important of all, for multiple users in cognitive network, associated with smart antenna communication system approach, we present adaptive cooperation algorithm to accelerate the process of searching optimal relay user and to reduce detection time. Additionally, we simulate our algorithm by using network simulation platform and make comparisons with existing cooperative spectrum sensing technique based on grouping users into pairs. Finally, we conclude with several open research issues of this new algorithm.
cognitive radios spectrum sensing adaptive cooperation algorithm UWB
Hongjian SUN Jing JIANG Maoliu LIN
Dept.of Electronic and Communication Engineering Harbin Institute of Technology,Harbin,Heilongjiang,China
国际会议
武汉
英文
2006-09-01（万方平台首次上网日期，不代表论文的发表时间）