On opportunistic spectrum efficiency in cognitive radio systems

作     者：王鹏 Zhong Xiaofeng Xiao Limin Zhou Shidong Wang Jing Bai Yong 

作者机构：State Key Laboratory on Microwave and Digital Communications Tsinghna National Laboratory for Information Science and Technology Department of Electronic Engineering Tsinghua University Beijing 100084 P.R. China DoCoMo Beijing Communications Laboratories Compary Limited Beijing 100080 P.R. China 

出 版 物：《High Technology Letters》 (高技术通讯（英文版）)

年 卷 期：2009年第15卷第2期

页      面：170-174页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 

基　　金：Supported by the National Basic Research Program of China (2007CB310608) DoCoMo--Tsinghua Cooperation Project and Tsinghua Basic Research Foundation (JC2007050) 

主　　题：cognitive radio opportunistic spectrum access opportunistic spectrum efficiency 

摘      要：The performance bound of cognitive radio systems is *** use opportunistic spectrum effi-ciency(OSE)as the performance metric,and point out that the maximum achievable OSE can be used toevaluate the maximum value that the introduction of secondary users can add to the conventional *** on assumptions of the PU s traffic model and some reasonable approximations,the ex-pression of OSE is obtained and the maximum achievable OSE is derived by solving an optimization *** results are verified by computer simulation.