Energy-Efficient Spectrum Sensing and Transmission for Cognitive Radio System

被引：70

作者：

Wu, Yuan ^{[1
]}

Tsang, Danny H. K. ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Elect & Comp Engn, Hong Kong, Hong Kong, Peoples R China

来源：

IEEE COMMUNICATIONS LETTERS | 2011年 / 15卷 / 05期

关键词：

Cognitive radio; energy efficiency; spectrum sensing and transmission;

D O I：

10.1109/LCOMM.2011.032811.110102

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We study energy-efficient spectrum sensing and transmission for Cognitive Radio (CR) which jointly determines its sensing and transmission durations. Our results quantify the impact of different power consumption components (i.e., sensing, transmission, and idling) on SU's optimal sensing and transmission durations. Our results also show that with a limited power capacity, SU has to strike a balance in energy consumption between sensing and transmission via appropriate idling.

引用

页码：545 / 547

页数：3

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