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Efficient Cluster Mobility Support for TDMA-Based MAC Protocols in Wireless Sensor Networks

Efficient Cluster Mobility Support for TDMA-Based MAC Protocols in Wireless Sensor Networks Efficient Cluster Mobility Support for TDMA-Based MAC Protocols in Wireless Sensor Networks MAJID NABI and MARC GEILEN, Eindhoven University of Technology TWAN BASTEN and MILOS BLAGOJEVIC, Eindhoven University of Technology and TNO-ESI Node mobility is a key feature of using Wireless Sensor Networks (WSNs) in many sensory applications, such as healthcare. The Medium Access Control (MAC) protocol should properly support the mobility in the network. In particular, mobility is complicated for contention-free protocols like Time Division Multiple Access (TDMA). An efficient access to the shared medium is scheduled based on the node's local neighborhood. This neighborhood may vary over time due to node movement or other dynamics. In scenarios including bodyarea networking, for instance, some clusters of nodes move together, creating further challenges but also opportunities. This article presents a MAC protocol, MCMAC, that provides efficient support for cluster mobility in TDMA-based MAC protocols in WSNs. The proposed protocol exploits a hybrid contentionfree and contention-based communication approach to support cluster mobility. This relieves the protocol from rescheduling demand due to frequent node movements. Moreover, we propose a listening scheduling mechanism to avoid idle listening to mobile nodes that leads to a considerable energy saving for sensor nodes. The http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ACM Transactions on Sensor Networks (TOSN) Association for Computing Machinery

Efficient Cluster Mobility Support for TDMA-Based MAC Protocols in Wireless Sensor Networks

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Publisher
Association for Computing Machinery
Copyright
Copyright © 2014 by ACM Inc.
ISSN
1550-4859
DOI
10.1145/2594793
Publisher site
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Abstract

Efficient Cluster Mobility Support for TDMA-Based MAC Protocols in Wireless Sensor Networks MAJID NABI and MARC GEILEN, Eindhoven University of Technology TWAN BASTEN and MILOS BLAGOJEVIC, Eindhoven University of Technology and TNO-ESI Node mobility is a key feature of using Wireless Sensor Networks (WSNs) in many sensory applications, such as healthcare. The Medium Access Control (MAC) protocol should properly support the mobility in the network. In particular, mobility is complicated for contention-free protocols like Time Division Multiple Access (TDMA). An efficient access to the shared medium is scheduled based on the node's local neighborhood. This neighborhood may vary over time due to node movement or other dynamics. In scenarios including bodyarea networking, for instance, some clusters of nodes move together, creating further challenges but also opportunities. This article presents a MAC protocol, MCMAC, that provides efficient support for cluster mobility in TDMA-based MAC protocols in WSNs. The proposed protocol exploits a hybrid contentionfree and contention-based communication approach to support cluster mobility. This relieves the protocol from rescheduling demand due to frequent node movements. Moreover, we propose a listening scheduling mechanism to avoid idle listening to mobile nodes that leads to a considerable energy saving for sensor nodes. The

Journal

ACM Transactions on Sensor Networks (TOSN) – Association for Computing Machinery

Published: Jun 1, 2014

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