%0 Journal Article
%T Improvement of CSGC algorithm based on users waiting time and bandwidth requirement<br>基于用户等待时间和带宽需求的改进CSGC算法
%A XU Jin-yu
%A LIU Pin
%A <br>徐金玉
%A 柳平
%J 重庆邮电大学学报(自然科学版)
%D 2011
%I 
%X Since the shortage of spectrum resources, paper raises a improvement based on the user waiting time and bandwidth requirement of CSGC(color sensitive graph coloring) algorithm via the analysis of graph coloring model. The new algorithm takes into account both user waiting time and actual bandwidth requirements, so that minimize the total unsatisfied needs and users tend to equal access to spectrum resources. It ensures the fairness of the system and improves the efficiency of spectrum. Simulation results show the feasibility of the algorithm.
%K cognitive radio
%K spectrum allocation
%K graph coloring
%K bandwidth demand<br>认知无线电
%K 频谱分配
%K 图论着色
%K 带宽需求
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=5C2694A2E5629ECD6B59D7B28C6937AD&aid=8A9892E12714AC7FCCEEAB3DCF4ADB62&yid=9377ED8094509821&vid=EA389574707BDED3&iid=E158A972A605785F&sid=BFB86B6ED3A99B9D&eid=65C08888CCE4801E&journal_id=1673-825X&journal_name=重庆邮电大学学报(自然科学版)&referenced_num=0&reference_num=16