Distributed Iterative Localization for Wireless Sensor Networks Subject to DoS Attacks

This paper investigates the issue of localization for wireless sensor networks resistant to denial-of-service (DoS) attacks with the assumption that each attack consists of an active period and a dormant period due to limited power. On the basis of barycentric coordinates involving relative distance measurements, a hold-on strategy based distributed localization (HS-DILOC) algorithm is proposed. Explicitly when the communication channel of a sensor is perpetrated by DoS attacks, HS-DILOC allows the sensor to update its coordinates utilizing the previous packets collected from its neighbors during the last dormant period. In addition, this paper theoretically shows that the proposed algorithm is capable of converging to the accurate locations of sensors disregarding the attack strategy. Finally, the experiments on Raspberry Pis are used to illustrate the validity of the proposed algorithm.