An Enhanced Outlier Detection in Wireless Sensor Network
Author(s):
Manjeet Khatkar, Pankaj Dev Chadha
Keywords:
Wireless Sensor Networks, Outlier Detection, Mahalanobis Distance, Eucidean Distance, Fault Tolerance
Abstract
Nowadays, Wireless Sensor Networks (WSNs) have become a way of information gathering and monitoring. These particular kinds of ad hoc networks find applications in various fields such as healthcare, army and environment, etc. However, WSNs are subjected to a number of faults, either due to the worst communication links, the hostile environment in which they are deployed or due to energy constraints. Thereby, to ensure the Quality of Service (QoS) in such networks, it is important that WSNs become capable of detecting and recovering erroneous data. In this way, many outlier detection techniques have been proposed. These techniques are based on information theory, statistics and other techniques. The Nearest Neighbour Search is one of these techniques. It uses the Euclidean or Mahalanobis distance for detecting outliers in a given sensor networks. In this paper, we proposed a distributed adaptive approach for the detection of outliers. The proposed approach is based on Euclidean or Mahalanobis distance, depending on the size of the data collected. Extensive experiments have been conducted and the results confirmed the effectiveness of the proposal.
Article Details
Unique Paper ID: 144997

Publication Volume & Issue: Volume 4, Issue 6

Page(s): 365 - 372
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