计算机工程Issue(4)：77-80,4.DOI:10.3969/j.issn.1000-3428.2015.04.014
基于认知用户移动性的协作频谱感知研究
Research on Cooperative Spectrum Sensing Based on Cognitive User Mobility
摘要
Abstract
Cooperative spectrum sensing can partly eliminate the multi-path and shadow effect. At present, most researches on cooperative spectrum sensing assume that Cognitive User( CU) is in static state,they do not consider that the CU mobility may make effect on the performance of cooperative spectrum sensing. In this paper,this factor about mobility of CU is considered and a model of dynamic cooperative spectrum sensing is put forward based on the centralized spectrum sensing.It makes that Primary User(PU)is static and some other CU move in a straight line at different speed in the model. Simulation and analysis result show that the dynamic CU can not cooperate with the static CU well on spectrum sensing by using lineal fusing rule along with the CU speed up gradually,so it can choose the CU at lower speed as the cooperative CU to increase the probability of detection.关键词
认知无线电/频谱感知/协作感知/认知用户/移动性Key words
cognitive radio/spectrum sensing/cooperative sensing/Cognitive User( CU)/mobility分类
信息技术与安全科学引用本文复制引用
胡峰,郑紫微,金涛..基于认知用户移动性的协作频谱感知研究[J].计算机工程,2015,(4):77-80,4.基金项目
国家自然科学基金资助项目(60972063) （60972063）
国家科技重大专项基金资助项目(2011ZX03002-004-02) （2011ZX03002-004-02）
教育部高等学校博士学科点专项科研基金资助项目(20113305110002) （20113305110002）
浙江省杰出青年科学基金资助项目( R1110416) （ R1110416）
宁波市科技创新团队基金资助项目(2011B81002)。 （2011B81002）
