Secure and Efficient Voting Based Localization Scheme for Wireless Sensor Networks

Submitted in May 2014; Accepted in September 2014 Abstract Many sensor network applications require sensor node to obtain their locations correctly. Various techniques have been proposed to locate regular sensors based on some special nodes called anchor nodes, which are supposed to know their locations. Providing a certain degree of localization accuracy at the presence of malicious beacons becomes a very challenging task. In this paper, a secure and efficient voting based localization scheme is proposed to mitigate the above impact. In this scheme voting based technique gives a search region in which sensor nodes are present, and then in search region trilateration is applied to know the position of sensor nodes. The communication between anchor and sensor nodes is authenticated and secured by encryption. The proposed scheme can provide very good localization accuracy with the reduced computational cost in presence of malicious nodes. This scheme is resistant to various attacks.