NDLI: Dynamic spectrum access for energy-constrained CR: single channel versus switched multichannel

Content Provider	IET Digital Library
Author	Agarwal, Satyam De, Swades
Abstract	In energy-constrained cognitive radio networks (CRNs), the choice on single channel access versus switched multichannel access is critical for energy saving and sustainable network operation. In this study, the authors study and compare the energy efficiency of switched (probabilistic) multichannel access (pMCA) and fixed single-channel access (SCA) in CRNs. In pMCA, a secondary user (SU) switches channel with certain probability whenever it encounters a busy channel. In SCA on the other hand, the SU stays on the same channel for its usage and waits for its availability. Via an analytical framework the authors derive the channel utilisation and energy efficiency of the two schemes. From the results the authors examine the primary user (PU) traffic dependent optimum switching probability in pMCA and the regime of PU activity dynamics where SCA outperforms pMCA.
Starting Page	761
Ending Page	769
Page Count	9
ISSN	17518628
Volume Number	10
e-ISSN	17518636
Issue Number	Issue 7, May (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/10/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2015.0523
Journal	IET Communications
Publisher Date	2016-05-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Channel Utilisation Cognitive Radio Communication Switching Dynamic Spectrum Access Energy Efficiency Energy Savings Energy-constrained Cognitive Radio Network Energy-constrained CRN Fixed SCA Fixed Single-channel Access PMCA Primary User Probabilistic Multichannel Access Probability PU Activity Dynamics PU Traffic Dependent Optimum Switching Probability Radio Link And Equipment Secondary User Statistics Switched Multichannel Access Telecommunication Switching
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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