Title: An energy-aware and intelligent cluster-based event detection scheme in wireless sensor networks

Authors: Sunil Kumar, Kashyap K.R. Kambhatla, Bin Zan, Fei Hu, Yang Xiao

Addresses: Department of Electrical and Computer Engineering, San Diego State University, San Diego, CA 92182, USA. ' Computational Sciences Research Center, San Diego State University, San Diego, CA 92182, USA. ' Rutgers University, North Brunswick, NJ 08902-3390, USA. ' Department of Computer Engineering, Rochester Institute of Technology, Rochester, NY 14623-5603, USA. ' Department of Computer Science, The University of Alabama, Tuscaloosa, AL 35487-0290, USA

Abstract: It is important to consider fast and reliable detections of sensing events occurring in various parts of the sensor network. We propose a cluster-based, energy-aware event-detection scheme where events are reliably relayed to a sink in the form of aggregated data packets. The clustering scheme provides faster and better event detection and reliability control capabilities to the areas of the network where an event is occurring. It also reduces network overhead, latency and loss of even information due to cluster rotation. The proposed scheme has the following new features: a new concept of energy-level-based Cluster Head (CH) selection, event packet(s) being capable of transmitting from the CHs to the sink while the cluster(s) are being formed, the sink|s assigning a dynamically adaptable reliability factor to clusters, a mechanism used to control the transmission rate of the sensors according to the assigned cluster reliability, etc.

Keywords: wireless sensor networks; WSNs; wireless networks; energy consumption; intelligent clustering; event detection; aggregated data packets; reliability control; cluster reliability.

DOI: 10.1504/IJSNET.2008.017232

International Journal of Sensor Networks, 2008 Vol.3 No.2, pp.123 - 133

Published online: 19 Feb 2008 *

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