A hybrid MAC protocol for emergency response wireless sensor networks

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dc.contributor.authorSitanayah, Lanny
dc.contributor.authorSreenan, Cormac J.
dc.contributor.authorBrown, Kenneth N.
dc.contributor.funderHigher Education Authorityen
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2019-11-07T12:31:01Z
dc.date.available2019-11-07T12:31:01Z
dc.date.issued2014-04-13
dc.date.updated2019-11-07T12:21:22Z
dc.description.abstractWe introduce ER-MAC, a novel hybrid MAC protocol for emergency response wireless sensor networks. It tackles the most important emergency response requirements, such as autonomous switching from energy-efficient normal monitoring to emergency monitoring to cope with heavy traffic, robust adaptation to changes in the topology, packet prioritisation and fairness support. ER-MAC is designed as a hybrid of the TDMA and CSMA approaches, giving it the flexibility to adapt to traffic and topology changes. It adopts a TDMA approach to schedule collision-free slots. Nodes wake up for their scheduled slots, but otherwise switch into power-saving sleep mode. When an emergency occurs, nodes that participate in the emergency monitoring change their MAC behaviour by allowing contention in TDMA slots to achieve high delivery ratio and low latency. In its operation, ER-MAC prioritises high priority packets and sacrifices the delivery ratio and latency of the low priority ones. ER-MAC also guarantees fairness over the packets' sources and offers a synchronised and loose slot structure to allow nodes to join or leave the network. Simulations in ns-2 show the superiority of ER-MAC over Z-MAC, a state-of-the art hybrid MAC protocol, with higher delivery ratio, lower latency, and lower energy consumption. When a cluster of nodes in the network detects fire, nodes with ER-MAC deliver twice as many high priority emergency packets and four times faster than Z-MAC. This is achieved by ER-MAC with only one fifth as much energy as Z-MAC.en
dc.description.sponsorshipHigher Education Authority (Irish Higher EducationAuthority PRTLI-IV research programme through the NEM-BES Project); Science Foundation Ireland (CTVR Project (SFI CSET 10/CE/I1853)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSitanayah, L., Sreenan, C. J. and Brown, K. N. (2014) 'A hybrid MAC protocol for emergency response wireless sensor networks', Ad Hoc Networks, 20, pp. 77-95. doi: 10.1016/j.adhoc.2014.03.008en
dc.identifier.doi10.1016/j.adhoc.2014.03.008en
dc.identifier.eissn1570-8713
dc.identifier.endpage95en
dc.identifier.issn1570-8705
dc.identifier.journaltitleAd Hoc Networksen
dc.identifier.startpage77en
dc.identifier.urihttps://hdl.handle.net/10468/8971
dc.identifier.volume20en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S1570870514000638
dc.rights© 2014 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 licence.en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectMAC protocolen
dc.subjectWireless sensor networksen
dc.subjectFire emergencyen
dc.titleA hybrid MAC protocol for emergency response wireless sensor networksen
dc.typeArticle (peer-reviewed)en
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