A Spectrum Allocation Algorithm to Maximize the System Access Amount in Cognitive Radio System

摘要：

The existing spectrum allocation algorithms do not consider the starvation phenomenon of cognitive users seriously in cognitive radio wireless networks. For this reason, a maximum system access algorithm based on graph coloring model is proposed. Aiming at maximizing the system access, it assures the validity by means of designing corresponding schemes of selecting cognitive users and channels. Comparisons are made with coordinated maximal system bandwidth (CMSB) algorithm and minimum graph coloring algorithm. Numerical results show that the proposed algorithm can achieve a good tradeoff between throughput and fairness while ensuring interferencefree transmission.

关键词： cognitive radio spectrum allocation graph theory system access amount

作者: Jie Jia Chuang Wang Zhaoyang Zhang Darning Shi Yanyan Li

作者单位: College of Information Science and Engineering Northeastern University Shenyang, China

会议类型: 国际会议

会议名称: 2011 IEEE 3rd International Conference on Communication Software and Networks(2011第三届通信软件与网络国际会议 ICCSN2011)

会议地点: 西安

会议语种:英文

页码: 251-255

在线出版日期: 2011-05-27（万方平台首次上网日期，不代表论文的发表时间）