Prospects and problems of cognitive radio network architectures in wireless sensor networks

Salami, Abdulazeez F. and Hussaini, Mukhtar and Anwar, Farhat and Bello-Salau, Habeeb (2011) Prospects and problems of cognitive radio network architectures in wireless sensor networks. In: Research Issues in Wireless Communication Networking. IIUM Press, Kuala Lumpur, pp. 245-254. ISBN 978-967-418-149-9

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Abstract

Cognitive radio is a technique proposed by Mitola which provides a way to efficiently use precious radio spectrum resources [1, 2]. A cognitive radio recognizes, analyzes, and learns the situations of the radio spectrum and then employs various strategies to maximize spectrum usage. The concept of cognitive radio is to detect and ascertain \vhich aspect of the spectrum is presently unused, and then perform data transmission at the newly discovered frequency band. An alternative cognitive radio scheme is to transmit signals on top of existing transmissions as long as the interference temperature measure is lower than threshold. Spectrum sharing, spectrum sensing, and spectrum management are the stages of a cognitive radio. Spectrum sensing gathers up-to-date spectrum usage data, spectrum management determines the optimal spectrum access timing and scheme, and spectrum sharing ensures that users are served in a fair and timely manne

Item Type:	Book Chapter
Additional Information:	3276/21960
Uncontrolled Keywords:	Cognitive radio, wireless sensor networks
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering Kulliyyah of Engineering
Depositing User:	Prof. Farhat Anwar
Date Deposited:	29 Oct 2012 08:45
Last Modified:	30 Dec 2019 15:10
URI:	http://irep.iium.edu.my/id/eprint/21960

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