Optimal spectrum allocation of primary users in light-handed cognitive radio networks

作     者：司鹏博 孙恩昌 张延华 

作者机构：College of Electronic Information and Control EngineeringBeijing University of Technology College of Electronic Information and Control EngineeringBeijing University of Technology100124 BeijingChina 

出 版 物：《Journal of Harbin Institute of Technology(New Series)》 (哈尔滨工业大学学报（英文版）)

年 卷 期：2012年第19卷第3期

页      面：21-27页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 081001[工学-通信与信息系统] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Sponsored by the National Natural Science Foundation of China(Grant No. 61101113,61072088) the Doctoral Research Initiation Foundation Project of Beijing University of Technology(Grant No. X0002012201104) 

主　　题：cognitive radio networks light-handed CR optimal decision making POMDP 

摘      要：In traditional cognitive radio(CR) network,secondary users(SUs) are always assumed to obey the rule ofintroducing no interference to the primary users(PUs) .However,this assumption may be not realistic as the CR devices becoming more and more intelligent *** this paper,with the concept of lighthanded CR,which is proposed to deal with the above mentioned problem by enforcingpunishmentto illegal CR transmissions,the action decisions of primary users(PUs) are modeled as a partially observable Markov decision process(POMDP),and the optimal spectrum allocation scheme with the objective of maximizing their reward is proposed,which is defined by the utility ***,a reduced scheme with much smaller state space has been proposed in this paper for lower computational *** simulation results show that the proposed schemes improve the reward significantly compared to the existing scheme.