认知无线电网络中基于需求的频谱资源分配算法研究  

Research of spectrum resource allocation based on user requirement in cognitive radio network

作　　者：陈劼[1] 李少谦[1] 廖楚林[1] 

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室,成都610054

出　　处：《计算机应用》2008年第9期2188-2191,2194,共5页journal of Computer Applications

基　　金：国家863计划项目(2007AA01Z209);国家自然科学基金资助项目(60496313);华为专项资助

摘　　要：认知无线电网络中,已有的分配算法未考虑用户的需求,这样会导致需求小的用户分配到更多的资源。为解决上述问题,提出基于需求以及联合比例公平两种频谱分配算法,这两种算法均将用户需求作为频谱分配时需要考虑的因素。仿真结果表明,基于需求以及联合比例公平算法比原算法更能满足各用户的需求。User requirement is not considered in existing spectrum allocation algorithms for the cognitive radio, which results in excessive allocation of resources to users with less demand. To solve the above problem, two spectrum allocation algorithms, which included spectrum allocation algorithm based on user requirement and joint proportional fairness algorithm, were proposed. They both consider user requirement as the needed factor of spectrum allocation. Numerical results indicate that these two algorithms are better satisfied with user＇s requirement than the previous algorithms.

关 键 词：认知无线电 图论 频谱分配 用户需求 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]