Optimization of Location Verification Algorithm in Wireless Sensor Network

In wireless sensor network localization schemes are used to knowing the location of all sensor nodes. But some localization is subjected to many malicious attacks in the network such as wormhole attack. Therefore, sensors locations are not truthful and need to be verified the sensors' locations are trustable or not. To detect the abnormal location in wireless sensor networks, this paper propose technique called in-region verification and Distributed In-Region Verification. Each region has separate verification center in distributed verification algorithm, and one verification center for in-region verification. Use of multiple verification centers in the network is reducing communication overhead and high detection accuracy. Performance of previous location verification algorithms are analyzed through graph. Better performance finds the suitable location verification algorithm for wireless sensor network.