Location Privacy Protecting Based on Anonymous Technology in Wireless Sensor Networks

Wireless sensor network is a type of information sharing network, where the attacker can monitor the network traffic or trace the transmission of packets to infer the position of the target node. Particularly, the target node mainly refers to the source node and the aggregation node. Firstly, we discuss the privacy protection method which is based on the anonymous location to prevent from the location privacy problems. Then, we suggest at least n anonymous nodes distributing near the target node, and select one of the fake nodes by routing protocol to replace the real one to carry out the location of the data communication. Finally, in order to improve the security of nodes and increase the difficulty of the attacker tracking, we select the routing tree which is generated via Collection Tree Protocol (CTP) to build the anonymous group and verified by simulation. Experiments show that anonymity of the proposed treatment increases the difficulty of the attackers significantly.