Protection Research of Sink Location Privacy in Underwater Sensor Networks

Underwater sensor networks (UWSNs) have been widely used in marine developments and applications. Due to the natural characteristics of UWSNs, it is possible for the attacker to obtain the location information of the sink node by tracking the packet. Therefore, we propose a location privacy preserving scheme of sink node for multiple fake paths. The method mainly includes random routing phase and directed routing phase. In the random routing phase, we inject the fake packets to construct random fake paths. In the directed routing phase, we construct the virtual circle to interfere the attackers and achieve effective protection of the sink node. The proposed method in this paper can effectively increase the difficulty of attackers tracking real data packet theoretically. The experimental results show that the proposed scheme has the characteristics of high safe time, high privacy protection of the sink node.