18-07-2012, 11:28 AM
Intrusion Detection-An Energy Efficient Approach In Heterogeneous WSN
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ABSTRACT
Intrusion detection plays an important role in the area of security in WSN.
WSN consumes a lot of energy to detect an intruder. Therefore we derive an algorithm for energy efficient external and internal intrusion detection.
INTRODUCTION
Intrusion detection is defined as the art of detecting inappropriate, inaccurate, or anomalous activity.
Today, intrusion detection is one of the high priority and challenging tasks for network administrators and security professionals.
WSN-Wireless Sensor Network
A Wireless Sensor Network (WSN) is a collection of spatially deployed wireless sensors by which to monitor various changes of environmental conditions (e.g., forest fire, air pollutant concentration, and object moving) in a collaborative manner without relying on any underlying infrastructure support.
Types of Sensing Detection
In a WSN, there are two ways to detect an object (i.e., an intruder):
single-sensing detection
multiple-sensing detection
In the single-sensing detection, the intruder can be successfully detected by a single sensor.
On the contrary, in the multiple-sensing detection, the intruder can only be detected by multiple collaborating sensors.
Intrusion detection system (IDS)
An Intrusion detection system (IDS) is software and/or hardware designed to detect unwanted attempts at accessing, manipulating, and/or disabling of computer mainly through a network, such as the Internet.
Intrusion Distance
The intrusion distance is referred as D and defined as the distance between the points the intruder enters the WSN, and the point the intruder is detected by the WSN system.
The value of D must be minimum.
D=Distance b/w the point at which intruder enters WSN and the point at which intruder is detected.
Existing System
In single-sensing detection, at a time only one intruder detected by the WSN.
Our Previous work was according to homogeneous and heterogeneous single sensor in wireless sensor network.
Proposed System
In Heterogeneous wireless sensor, Intruder detected anywhere in the network.
We are detecting the intruder in multiple sensor heterogeneous wireless sensor networks.