计算机工程2017，Vol.43Issue(10)：56-61,67,7.DOI:10.3969/j.issn.1000-3428.2017.10.010
认知无线网络非理想协作频谱感知节能策略
Energy Efficient Strategy with Imperfect Collaborative Spectrum Sensing in Cognitive Wireless Network
摘要
Abstract
In view of the problem of increasing system energy consumption caused by the growth of sensing users or equipment amounts in imperfect cooperative spectrum sensing of cognitive wireless network,this paper sets up a system optimization model to deduce the relationship between the system energy efficiency and the sensing time as well as the Cognitive Transmitter(CT) power in cognitive transmission.Since the joint optimization problem of the sensing duration and the transmission power is hard to solve directly,it is decomposed into two sub-problems.Based on the analytical solvers of these two sub-problems,a joint optimization algorithm is proposed.The results of simulation verify that the proposed algorithm can raise the energy efficiency in cognitive wireless network and save the energy.关键词
认知无线电/节能/认知传输/联合优化/频谱感知Key words
Cognitive Radio (CR)/energy efficiency/cognitive transmission/joint optimization/spectrum sensing分类
信息技术与安全科学引用本文复制引用
王晓东,陈长兴,任晓岳,林兴..认知无线网络非理想协作频谱感知节能策略[J].计算机工程,2017,43(10):56-61,67,7.基金项目
陕西省自然科学基础研究计划项目(2014JM8344). （2014JM8344）
