Optimizing Base Station’s Anonymity with PID-Controlled Fake Packets and Data Aggregation

A Base Station (BS) is a gateway between a wireless sensor network (WSN) and the network administrator (NA). It is responsible for gathering information from the sensors and forwarding it to the NA while collecting instruction from him and communicating it to the WSN. Consequently, the BS has become the prime target of attackers. One form of attack on the BS is tempering. The attacker finds the physical location and destroys it. An adversary can easily find the BS since (in a typical WSN) it is the node with the highest traffic. In this paper, we hide the BS using proportional–integral–derivative (PID) controlled fake packet injection and data aggregation. The data aggregation strategy helps combine data from the sensor nodes into a super-packet, thus reducing the actual traffic. On the other hand, the PID-controlled fake packet injection technique compensates for the difference in traffic between the BS and other nodes in the network. The simulation results demonstrate that the proposed approach can protect the BS from packet-tracing and traffic analysis attacks.