基于节点选择的能量高效的协作频谱感知算法  

Energy-efficient Cooperative Spectrum Sensing Algorithm Based on Node Selection

作　　者：胡庆[1] 海力群 常迪[1] 

机构地区：[1]重庆邮电大学软件技术中心,重庆400065

出　　处：《电视技术》2014年第1期107-110,共4页Video Engineering

基　　金：国家自然科学基金项目(61271259);重庆市自然科学基金项目(CTSC2011jjA40006;CSTC2010BB2415);重庆市教委科学技术研究项目(KJ120501;KJ120502;KJ1105300)

摘　　要：针对认知无线电中协作频谱感知能耗高的问题,提出一种基于节点选择的能量高效的协作频谱感知算法。该算法在保证感知性能的同时优化感知节点数量,从而达到高效节能的目的,其核心是采用能量高效的节点选择算法。该算法综合考虑了感知性能和能耗,仿真结果表明该算法在保证感知性能的同时能有效降低协作频谱感知的系统能耗。To reduce the high energy consumption in cooperative spectrum sensing, a energy-efficient cooperative spectrum sensing algorithm is pro- posed based on node selection. The algorithm guarantees the sensing performance and optimizes the number of nodes simultaneously, so as to achieve the purpose of energy-efficient. The core of the algorithm is the energy-efficient node selection algorithm. The algorithm takes into account the sensing per- formance and energy consumption, the simulation results show that the algorithm can effectively reduce the energy consumption of cooperative spectrum sensing system and guarantee the sensing performance simultaneously.

关 键 词：认知无线电 协作频谱感知 节能 节点选择 

分 类 号：TN929[电子电信—通信与信息系统]