DocumentCode
1432837
Title
Optimal Energy-Efficient Channel Exploration for Opportunistic Spectrum Usage
Author
Xu, Yuhua ; Wang, Jinlong ; Wu, Qihui ; Zhang, Zongsheng ; Anpalagan, Alagan ; Shen, Liang
Author_Institution
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Volume
1
Issue
2
fYear
2012
fDate
4/1/2012 12:00:00 AM
Firstpage
77
Lastpage
80
Abstract
This letter studies the channel exploration problem for opportunistic spectrum usage systems, where exploring state information of each channel consumes time and energy. We formulate this problem as an optimal stopping problem and propose a myopic rule with low complexity, called one stage look ahead (1-SLA), to solve it. Moreover, the optimality of the 1-SLA rule for the energy-efficient channel exploration problem is proved, and simulation results are provided to show the effectiveness of the 1-SLA rule.
Keywords
radio spectrum management; wireless channels; 1-SLA rule; one stage look ahead; opportunistic spectrum usage systems; optimal energy-efficient channel exploration problem; optimal stopping problem; state information; Cognitive radio; Complexity theory; Energy consumption; Fading; Sensors; Throughput; Opportunistic spectrum usage; multichannel diversity; optimal stopping rule;
fLanguage
English
Journal_Title
Wireless Communications Letters, IEEE
Publisher
ieee
ISSN
2162-2337
Type
jour
DOI
10.1109/WCL.2012.012012.110257
Filename
6140622
Link To Document