Dynamic Channel Allocation Algorithm Based on Parameter Estimation in Cognitive Radio

摘要：

Dynamic channel allocation is studied for cognitive radio. Based on the characteristic of primary users’ service in cognitive radio, this article proposed that apply mixed Poisson distribution to build model for primary users’ service then estimate the probability density function of channel unoccupied duration by using EM algorithm to evaluate the parameter of mixed Poisson distribution model and addressed a multiple channel allocation algorithm based on the result of channel estimation. Numerical simulations have demonstrated the anticipated performance of the algorithm which proposed in the article at conflict rate and throughput. Meanwhile, the proposed algorithm have lower implementation complexity for practical reality.

关键词： cognitive radio parameter estimation mixed Poisson distribution dynamic channel allocation

作者: Yin Long Jiang Zhu Fangwei Li

作者单位: Key Lab of Mobile Communications TechnologyChongqing University of Posts and TelecommunicationsChong Key Lab of Mobile Communications Technology Chongqing University of Posts and Telecommunications Cho

会议类型: 国际会议

会议名称: 2011年无线通信与信号处理国际会议(WCSP 2011)

会议地点: 南京

会议语种:英文

页码: 1-5

在线出版日期: 2011-11-09（万方平台首次上网日期，不代表论文的发表时间）