计算机工程与应用Issue(5)：203-207,5.DOI:10.3778/j.issn.1002-8331.1306-0379
基于POMDP的信道感知接入算法
Channel sensing and access algorithm based on POMDP
摘要
Abstract
In order to maximize the throughput of secondary user in cognitive radio network, while the interference to pri-mary user under the predefined threshold, a new channel sensing and access algorithm based on Partially Observable Mar-kov Decision Process(POMDP)is proposed in this paper. The primary channel has been divided into several slots equally in time domain. At beginning of each slot, the secondary user selects an optimal strategy from three actions:spectrum sensing, access the channel with a larger power and access the channel with a low power. It formulates the selection of sec-ondary users as a POMDP problem, some optimal strategies are proposed to solve the problem. Illustrative results indicate the efficiency of the proposed algorithm.关键词
认知无线电/频谱感知/吞吐量/半马尔科夫链Key words
cognitive radio/spectrum sensing/throughput/Partially Observable Markov Decision Process(POMDP)分类
信息技术与安全科学引用本文复制引用
郭文慧,王亚林,韩迎鸽..基于POMDP的信道感知接入算法[J].计算机工程与应用,2014,(5):203-207,5.基金项目
安徽省优秀青年人才基金项目（No.2012SQRL256）；安徽省教育厅高校省级自然科学一般研究项目（No. KJ2011ZO92）。 （）
