Improved Technique for Detection and prevention of Blackhole Attack in Wireless Sensor Network

Abstract

Wireless Sensor Networks (WSN) is a growing innovation in today’s world and has an widespread variety
of usages for example forest fire detection, traffic surveillance, flood detection, battlefield surveillance etc. However
WSN can be pretentious by various attacks which obstructs ordinary operation of the system. Security and reliability
of sensor network is in a smaller amount because of random architecture of sensor nodes in uncluttered environment,
power limitations, memory limitations and unattended nature. In general, two types of Attacks are in WSN- active
attacks and the passive attacks. Black-hole attack is harmful active attacks. We have reviewed many technique
regarding Blackhole Detection and Removal. And proposed a mechanism for discovery and removal of Blackhole
attack from network.