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ThinkMind // SENSORCOMM 2012 , The Sixth International Conference on Sensor Technologies and Applications // View article sensorcomm_2012_11_10_10133


Cluster-based Energy-efficient Composite Event Detection for Wireless Sensor Networks

Authors:
Irfana Memon
Traian Muntean

Keywords: Wireless sensor networks (WSNs); data aggregation; local computation; composite event detection.

Abstract:
Wireless sensor networks (WSNs), well known communicating architectures today, are often used to detect the occurrence of some environmental events, such as pollution monitoring, forest fires detection, location and tracking, etc. In order to reduce irrelevant alarms, multiple attributes are used in the event detection process. In WSNs, communication is often by far more expensive and difficult to control than local computation within nodes. Therefore, it becomes critical to reduce the amount of data exchange within a WSN, in order to optimize the use of power and energy resources within nodes. Energy optimization is thus one of the most important aspects of the WSN design. There are already literature and projects dealing with the detection of composite events using data aggregation at intermediate nodes. In this paper, a cluster-based energy-efficient composite event detection (CEC) for wireless sensor networks scheme is proposed, which performs local computation at sensor nodes and local data aggregation at level of each cluster heads in order to reduce the communication overhead. Simulation results show that jointly, considering both local computation at sensor nodes level and local data aggregation at intermediate nodes will further reduce the total energy consumption and thus prolong the network lifetime.

Pages: 241 to 247

Copyright: Copyright (c) IARIA, 2012

Publication date: August 19, 2012

Published in: conference

ISSN: 2308-4405

ISBN: 978-1-61208-207-3

Location: Rome, Italy

Dates: from August 19, 2012 to August 24, 2012

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