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On the problem of energy efficiency of multi-hop vs one-hop routing in wireless sensor networks

Fedor, Szymon and Collier, Martin (2007) On the problem of energy efficiency of multi-hop vs one-hop routing in wireless sensor networks. In: AINAW 2007 - 21st International Conference on Advanced Information Networking and Applications Workshops, 21-23 May 2007, Niagara Falls, Canada. ISBN 978-0-7695-2847-2

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Abstract

The hop distance strategy in wireless sensor networks (WSNs) has a major impact on energy consumption of each sensor mote. Long-hop routing minimizes reception cost. However, a substantial power demand is incurred for long distance transmission. Since the transceiver is the major source of power consumption in the node, optimizing the routing for hop length can extend significantly the lifetime of the network. This paper explores when multi-hop routing is more energy efficient than direct transmission to the sink and the conditions for which the two-hop strategy is optimal. Experimental evidence is provided in to support of these conclusions. The tests showed that the superiority of the multi-hop scheme depends on the source-sink distance and reception cost. They also demonstrated that the two- hop strategy is most energy efficient when the relay is at the midpoint of the total transmission radius. Our results may be used in existing routing protocols to select optimal relays or to determine whether it is better to send packets directly to the base station or through intermediate nodes.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:Yes
Uncontrolled Keywords:routing protocols; wireless sensor networks;
Subjects:Engineering > Telecommunication
DCU Faculties and Centres:Research Initiatives and Centres > Research Institute for Networks and Communications Engineering (RINCE)
Published in:Proceedings of the 21st International Conference on Advanced Information Networking and Applications Workshops. . Institute of Electrical and Electronics Engineers. ISBN 978-0-7695-2847-2
Publisher:Institute of Electrical and Electronics Engineers
Official URL:http://dx.doi.org/10.1109/AINAW.2007.272
Copyright Information:©2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
ID Code:15524
Deposited On:20 Jul 2010 11:24 by DORAS Administrator. Last Modified 20 Jul 2010 11:24

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