摘要
频谱共享技术是认知无线电的关键技术。基于多目标遗传算法,将认知无线电网络的最大系统效益和次用户间的最大比例公平作为目标函数,运用图论着色频谱分配模型,实现认知无线电中空闲频谱在次用户间的动态分配,并与颜色敏感图论着色算法(CSGC)进行了比较。通过仿真验证了该算法在认知无线电网络中进行频谱分配的可行性,且性能优于CSGC算法。
Spectrums＇ sharing is the key technology of cognitive radio.This paper based on multi-objective genetic algorithm to get idle spectrum dynamically allocate among the second users.This paper used the best network benefit and the most fairness as objective function,utilized graph coloring to implement spectrum allocation.Through comparing this algorithm with CSGC,this paper gets a result that genetic algorithm can be used in spectrum allocation in cognitive network and this algorithm is feasible and better than CSGC.
出处
《西南科技大学学报》
CAS
2010年第4期82-86,共5页
Journal of Southwest University of Science and Technology
基金
西南科技大学实验室开放基金(10xnkf11)
关键词
认知无线电
频谱分配
多目标遗传算法
Cognitive radio
Spectrum allocation
Multi-objective genetic algorithm
