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Sensors 2012, 12(11), 15599-15627;

McMAC: Towards a MAC Protocol with Multi-Constrained QoS Provisioning for Diverse Traffic in Wireless Body Area Networks

Department of Information Technology, Faculty of Computing and Information Technology, King AbdulAziz University, 21589 Jeddah, Saudi Arabia
College of Computer and Information Sciences, King Saud University, 11543 Riyadh, Saudi Arabia
Author to whom correspondence should be addressed.
Received: 3 October 2012 / Revised: 17 October 2012 / Accepted: 2 November 2012 / Published: 12 November 2012
(This article belongs to the Special Issue Body Sensor Networks for Healthcare and Pervasive Applications)
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The emergence of heterogeneous applications with diverse requirements forresource-constrained Wireless Body Area Networks (WBANs) poses significant challengesfor provisioning Quality of Service (QoS) with multi-constraints (delay and reliability) while preserving energy efficiency. To address such challenges, this paper proposes McMAC,a MAC protocol with multi-constrained QoS provisioning for diverse traffic classes in WBANs. McMAC classifies traffic based on their multi-constrained QoS demands andintroduces a novel superframe structure based on the "transmit-whenever-appropriate" principle, which allows diverse periods for diverse traffic classes according to their respective QoS requirements. Furthermore, a novel emergency packet handling mechanism is proposedto ensure packet delivery with the least possible delay and the highest reliability. McMAC is also modeled analytically, and extensive simulations were performed to evaluate itsperformance. The results reveal that McMAC achieves the desired delay and reliability guarantee according to the requirements of a particular traffic class while achieving energy efficiency. View Full-Text
Keywords: QoS; Wireless Body Area Networks; heterogeneous traffic QoS; Wireless Body Area Networks; heterogeneous traffic

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Monowar, M.M.; Hassan, M.M.; Bajaber, F.; Al-Hussein, M.; Alamri, A. McMAC: Towards a MAC Protocol with Multi-Constrained QoS Provisioning for Diverse Traffic in Wireless Body Area Networks. Sensors 2012, 12, 15599-15627.

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