NDLI: Analysis of cognitive radio networks with imperfect sensing

Content Provider	IEEE Xplore Digital Library
Author	Suliman, I. Lehtomaki, J. Braysy, T. Umebayashi, K.
Copyright Year	2009
Description	Author affiliation: Tokyo University of Agriculture and Technology (TUAT), Tokyo, Japan (Umebayashi, K.) \|\| Centre for Wireless Communications (CWC), University of Oulu, Oulu, Finland (Suliman, I.; Lehtomaki, J.; Braysy, T.)
Abstract	Recently, cognitive radio access has received much attention. Spectrum sensing methods are often used for finding free channels to be used by cognitive radios (secondary users). State diagram based approach can be used for analyzing the effects of imperfect spectrum sensing (with false alarms and misdetections). The state diagram consists of two-tuples like (1,2) meaning one primary user and two secondary users present. We note that state dependent transition rates are very important for accurate modeling. This is because for example in state (3,0) (all channels occupied by primary users) collisions happen with increased probability. Our contribution is as follows. Explicit expressions for state dependent transition rates are presented for the case with three channels. However, the approach can be used also for more channels. Primary termination probability is used for evaluating the level of interference to primary users caused by secondary users. Secondary success probability is used to find out how often does a secondary call start and terminate successfully. Simulation and analysis results agree very well.
Starting Page	1616
Ending Page	1620
File Size	262178
Page Count	5
File Format	PDF
ISBN	9781424451227
e-ISBN	9781424451234
DOI	10.1109/PIMRC.2009.5450108
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-13
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cognitive radio Frequency Wireless communication Detectors Energy measurement Power measurement Performance analysis Agriculture Interference Analytical models
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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