On opportunistic spectrum efficiency in cognitive radio systems

被引：0
|
作者：
王鹏 [1 ]
机构：
[1] State Key Laboratory on Microwave and Digital Communications,Tsinghua National Laboratory for Information Science and Technology,Department of Electronic Engineering,Tsinghua University
来源：
High Technology Letters | 2009年 / 15卷 / 02期
关键词：
cognitive radio; opportunistic spectrum access; opportunistic spectrum efficiency;
D O I：
暂无
中图分类号：
TN92 [无线通信];
学科分类号：
080402 ; 080904 ; 0810 ; 081001 ;
摘要：
The performance bound of cognitive radio systems is analyzed.We 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 wirelesssystems.Based 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 prob-lem.The results are verified by computer simulation.
引用
收藏
页码：170 / 174
页数：5
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