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An Anonymity Technique for Base Stations Against Traffic Volume Analysis in Wireless Sensor Networks and Internet of Things

Wireless Sensor Network (WSN) and Internet of Things (IoT) can be deployed in many life-critical applications such as military reconnaissance, smart grid monitoring, health-monitoring systems, etc. However, a WSN is useless without being able to convey the collected data to the Base Station (BS), which is responsible for gathering information from the sensors and forwarding it to the user/administrator. Therefore, protecting the BS is of paramount importance. In this paper, we propose an approach that can hide the physical location of the BS against an attacker carrying out traffic volume attack in a cluster-based network. The proposed approach hides the BS by controlling the amount of traffic between the cluster head (CH) and its sensor nodes. The simulation results show the ability of the proposed approach to keep the BS hidden, minimize total exchanged traffic while maintaining the required network coverage.