DocumentCode
1486950
Title
Energy-Efficient Spectrum Sensing and Transmission for Cognitive Radio System
Author
Wu, Yuan ; Tsang, Danny H K
Author_Institution
Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong, China
Volume
15
Issue
5
fYear
2011
fDate
5/1/2011 12:00:00 AM
Firstpage
545
Lastpage
547
Abstract
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.
Keywords
cognitive radio; power consumption; cognitive radio system; energy consumption; energy-efficient spectrum sensing; optimal sensing; power consumption components; transmission durations; Cognitive radio; Energy consumption; Power demand; Sensors; Signal to noise ratio; Wireless sensor networks; Cognitive radio; energy efficiency; spectrum sensing and transmission;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2011.032811.110102
Filename
5741765
Link To Document