This document analyzes intrusion detection in wireless sensor networks with sensors deployed either uniformly or according to a Gaussian distribution. Gaussian distributions can provide different detection probabilities in different locations of the network, which may be important for applications requiring improved detection around key areas. The paper characterizes detection probability with respect to application needs and network parameters for single and multiple sensor detection. It examines the effects of network parameters on probability and compares Gaussian and uniform distributions to provide guidelines for selecting deployment strategies and key parameters.
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Gaussian versus uniform distribution for intrusion detection in wireless sensor networks
1. ECWAY TECHNOLOGIES
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GAUSSIAN VERSUS UNIFORM DISTRIBUTION FOR INTRUSION
DETECTION IN WIRELESS SENSOR NETWORKS
ABSTRACT:
In a Wireless Sensor Network (WSN), intrusion detection is of significant importance in many
applications in detecting malicious or unexpected intruder(s). The intruder can be an enemy in a
battlefield, or a malicious moving object in the area of interest. With uniform sensor deployment,
the detection probability is the same for any point in a WSN. However, some applications may
require different degrees of detection probability at different locations. For example, an intrusion
detection application may need improved detection probability around important entities.
Gaussian-distributed WSNs can provide differentiated detection capabilities at different locations
but related work is limited.
This paper analyzes the problem of intrusion detection in a Gaussian-distributed WSN by
characterizing the detection probability with respect to the application requirements and the
network parameters under both single-sensing detection and multiple-sensing detection
scenarios. Effects of different network parameters on the detection probability are examined in
detail. Furthermore, performance of Gaussian-distributed WSNs is compared with uniformly
distributed WSNs. This work allows us to analytically formulate detection probability in a
random WSN and provides guidelines in selecting an appropriate deployment strategy and
determining critical network parameters.