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Analysis of Energy Conservation in Sensor Networks.

Gao, Q. and Blow, K. J. and Holding, D. J. and Marshall, Ian (2005) Analysis of Energy Conservation in Sensor Networks. Wireless Networks, 11 (6). pp. 787-794. ISSN 1022-0038

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Abstract

In this paper we use the Erlang theory to quantitatively analyse the trade offs between energy conservation and quality of service in an ad-hoc wireless sensor network. Nodes can be either sleeping, where no transmission or reception can occur, or awake where traffic is processed. Increasing the proportion of time spent in the sleeping state will decrease throughput and increase packet loss and delivery delay. However there is a complex relationship between sleeping time and energy consumption. Increasing the sleeping time does not always lead to an increase in the energy saved. We identify the energy consumption profile for various levels of sensor network activity and derive an optimum energy saving curve that provides a basis for the design of extended-life ad hoc wireless sensor networks.

Item Type: Article
Journal or Publication Title: Wireless Networks
Additional Information: This modeling work demonstrated multi-criterion optimization of the efficiency of sensor network communications protocols, and showed that the conventional approach of using hop by hop LAN protocols would not be optimal in low traffic, intermittent networks. The work was undertaken in close collaboration with the Aston co-authors during a prestigious (~4 per annum) Royal Society industry fellowship supported by BT and inspired the simple protocol recently developed for a NERC SBRI project with Salamander Ltd. RAE_import_type : Journal article RAE_uoa_type : Computer Science and Informatics
Uncontrolled Keywords: sensor networks - ad hoc networks - energy efficient design - QoS - Erlang formula
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 2537
Deposited By: ep_importer
Deposited On: 25 Jun 2008 16:38
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 16:26
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/2537

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