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Sensors 2015, 15(4), 9189-9209; doi:10.3390/s150409189

A Survey of MAC Protocols for Cognitive Radio Body Area Networks

Department of Computer Engineering, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 501-759, Korea
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Author to whom correspondence should be addressed.
Academic Editor: Leonhard M. Reindl
Received: 13 February 2015 / Revised: 31 March 2015 / Accepted: 15 April 2015 / Published: 20 April 2015
(This article belongs to the Section Sensor Networks)
View Full-Text   |   Download PDF [907 KB, uploaded 20 April 2015]   |  

Abstract

The advancement in electronics, wireless communications and integrated circuits has enabled the development of small low-power sensors and actuators that can be placed on, in or around the human body. A wireless body area network (WBAN) can be effectively used to deliver the sensory data to a central server, where it can be monitored, stored and analyzed. For more than a decade, cognitive radio (CR) technology has been widely adopted in wireless networks, as it utilizes the available spectra of licensed, as well as unlicensed bands. A cognitive radio body area network (CRBAN) is a CR-enabled WBAN. Unlike other wireless networks, CRBANs have specific requirements, such as being able to automatically sense their environments and to utilize unused, licensed spectra without interfering with licensed users, but existing protocols cannot fulfill them. In particular, the medium access control (MAC) layer plays a key role in cognitive radio functions, such as channel sensing, resource allocation, spectrum mobility and spectrum sharing. To address various application-specific requirements in CRBANs, several MAC protocols have been proposed in the literature. In this paper, we survey MAC protocols for CRBANs. We then compare the different MAC protocols with one another and discuss challenging open issues in the relevant research. View Full-Text
Keywords: wireless body area network; cognitive radio body area network; media access control; energy efficiency; network lifetime wireless body area network; cognitive radio body area network; media access control; energy efficiency; network lifetime
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Bhandari, S.; Moh, S. A Survey of MAC Protocols for Cognitive Radio Body Area Networks. Sensors 2015, 15, 9189-9209.

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