空军工程大学学报（自然科学版）2017，Vol.18Issue(5)：61-66,6.DOI:10.3969/j.issn.1009-3516.2017.05.011
基于二分法迭代的频谱感知节能优化策略
An Optimization Strategy of Energy Efficient in Spectrum Sensing Based on Bisection and Iteration
摘要
Abstract
Aimed at the problem that energy efficiency of spectrum sensing is low in cognitive radio (CR) system,a joint optimization algorithm based on bisection and iteration is proposed .This algorithm sharply raises the energy efficiency of CR system by jointing transmitting power and sensing slot to reach the opti-mization .And in the process of optimizing parameter ξ,the methods of bisection and iteration are jointed to reach the optimization .Through theoretical analysis,compared to other algorithms,this algorithm is faster at optimization speed,lower in complexity,faster at function convergence speed and larger in space for extension in application .The results of numerical simulation show that under condition of provided de-tection performance,the proposed algorithm can deal with the optimization of energy efficiency well .Un-der conditions of the constant detection probability of ^Pd =0.9 and ^Pd =0.7,energy consumption of the proposed algorithm is lower than that of others,and the algorithm in system throughput is superior to oth-ers .This provides a theory support to CR system development,and is more in line with the energy-saving trend for CR system development in the future .关键词
认知无线电/频谱感知/能量效率/二分法/迭代Key words
cognitive radio/spectrum sensing/energy efficient/bisection/iterative分类
电子信息工程引用本文复制引用
陈长兴,林兴,任晓岳,王晓东,杨牧,曾志..基于二分法迭代的频谱感知节能优化策略[J].空军工程大学学报（自然科学版）,2017,18(5):61-66,6.基金项目
陕西省自然科学基础研究计划(2014JM8344) （2014JM8344）
