NDLI: Optimal channel stopping rule under constrained conditions for CRNs

Content Provider	IEEE Xplore Digital Library
Author	Vaid, V. Patel, A. Merchant, S.N.
Copyright Year	2014
Description	Author affiliation: Dept. of Electr. Eng., Indian Inst. of Technol. Bombay, Mumbai, India (Vaid, V.; Patel, A.; Merchant, S.N.)
Abstract	Cognitive radio is an innovative technique for spectrum management which uses Dynamic Spectrum Access (DSA). DSA has the potential to mitigate the spectrum scarcity by letting the Secondary User (SU) access the idle spectrum unused by the Primary User (PU). DSA improves the spectrum efficiency via spectrum sensing and optimal spectrum access. Spectrum sensing should be perfect so that the SU does not cause interference to the PU. Moreover, the channel selected should be the best for maximising throughput of the SU. In this paper we consider a best channel selection problem in Cognitive Radio Networks (CRNs). The problem is modelled as optimal stopping problem where the controller at each state can stop or continue sensing based on the channel gains achieved. There is a Markovian relation given between the channel occupancies of PU. The stopping rule comes out to be simple threshold rule. The controller stops sensing when the channel gain exceeds the given threshold.
Starting Page	1
Ending Page	5
File Size	110850
Page Count	5
File Format	PDF
ISBN	9781479923618
DOI	10.1109/NCC.2014.6811283
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-02-28
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optimal stopping problem Cognitive Radio Dynamic spectrum access Opportunistic spectrum access Throughput Sensors Random variables Cognitive radio Mathematical model Equations
Content Type	Text
Resource Type	Article

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