Privacy Preserving Asynchronous Localization of USNs

Abstract

Under the constraint of the asynchronous clock, security attack and node mobility, a privacy-preserving asynchronous localization issue is studied. To be specific, an asynchronous localization protocol is developed, and then two privacy-preserving localization algorithms are proposed to locate the position of active and ordinary sensor nodes. Note that the proposed localization algorithms reveal disguised positions to the network, while they do not adopt any homomorphic encryption technique. Besides that, the performance analyses of the proposed algorithms are also given. Finally, simulation and experiment results show that the proposed localization algorithms can avoid the leakage of location information, while the localization accuracy can be significantly enhanced by comparing with the other works.