NDLI: Analysis of cognitive radio networks with channel assembling, buffering, and imperfect sensing

Content Provider	IEEE Xplore Digital Library
Author	Ngatched, T.M.N. Shuo Dong Alfa, A.S.
Copyright Year	2013
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB, Canada (Shuo Dong; Alfa, A.S.) \|\| Div. of Sc)i. (Eng.), Memorial Univ. of Newfoundland, Corner Brook, NL, Canada (Ngatched, T.M.N.)
Abstract	In this paper, the performance of a multichannel cognitive radio network (CRN) where each secondary user (SU) can assemble a constant number of primary channels is investigated. The effects of imperfect spectrum sensing (with false alarms and mis-detections) are taken into account and it is assumed that spectrum handover is enabled in the secondary network. A buffering mechanism is introduced to save blocked SU requests and interrupted SU services. An analytical model based on Continuous-time Markov chains (CTMC) is developed, and the system performance is evaluated in terms of throughput, blocking probability, and forced termination probability. Numerical results show that the buffer is able to significantly reduce the SU blocking probability while increasing its throughput.
Starting Page	952
Ending Page	957
File Size	344730
Page Count	6
File Format	PDF
ISBN	9781467359382
ISSN	15253511
e-ISBN	9781467359399
e-ISBN	9781467359375
DOI	10.1109/WCNC.2013.6554692
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-04-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Throughput Sensors Handover Cognitive radio Numerical models Equations
Content Type	Text
Resource Type	Article

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