电子器件2017，Vol.40Issue(3)：561-567,7.DOI:10.3969/j.issn.1005-9490.2017.03.009
基于特征检测器的能量采集认知无线电系统优化研究
Feature-Based Optimization for Energy-Harvesting Cognitive Radio
摘要
Abstract
We consider an energy-harvesting cognitive radio system where the feature-based detectors are used for spectrum sensing,the effect of the sensing threshold and sensing duration on performances with different detectors are compared,and the optimal sensing duration can be obtained by maximizing the average throughput of an energy harvesting secondary network subject to energy causality constraint and a collision constraint.Numerical results show that there exists difference among the optimal sensing duration with three detectors for an appropriate sensing threshold,the energy detector is affected by energy causality and collision constraint,one just depends on energy with maximum eigenvalue detector,where there is no optimal sensing duration for the ratio of maximum to minimum eigenvalue detector.关键词
认知无线电/能量采集/频谱感知/感知时间Key words
cognitive radio/energy harvesting/spectrum sensing/sensing duration分类
信息技术与安全科学引用本文复制引用
高燕,张照锋,胡国兵,王书旺,石天..基于特征检测器的能量采集认知无线电系统优化研究[J].电子器件,2017,40(3):561-567,7.基金项目
南京信息职业技术学院科研基金项目(YK20150102) （YK20150102）
南京信息职业技术学院开放基金项目(KF20150104) （KF20150104）
江苏高校品牌专业建设工程资助项目(PPZY2015C242) （PPZY2015C242）
江苏省"六大人才高峰"第十二批高层次人才项目(DZXX-022) （DZXX-022）
江苏省高校优秀中青年骨干教师和校长境外研修计划项目 （）
江苏省自然科学基金项目(BK20161104) （BK20161104）
