DocumentCode
87639
Title
Optimal Selection of False Alarm Probability for Dynamic Spectrum Access
Author
Wang, Ye ; Zhang, Yalin ; Zhang, Qinyu ; Wu, Shaohua
Author_Institution
Department of Electronic and Information Engineering, Harbin Institute of Technology, Shenzhen Graduate School
Volume
17
Issue
5
fYear
2013
fDate
May-13
Firstpage
844
Lastpage
847
Abstract
This letter investigates the selection of false alarm (FA) probability for dynamic spectrum access (DSA). We suggest that the performance of DSA systems can be improved efficiently by properly selecting the value of FA probability. The problem of DSA process with imperfect sensing is modeled as a continuous-time Markov chain and based on which, an optimization problem is formulated to maximize the number of served secondary radios for long-run term. We also present a simple gradient-based algorithm to find the optimal FA probability. Numerical results show that the proposal has better performance than conventional constant false alarm ratio based scheme.
Keywords
Detectors; Dynamic spectrum access; Markov processes; Optimization; Simulation; Steady-state; False alarm probability; dynamic spectrum access; optimization;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2012.030413.121025
Filename
6476949
Link To Document