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Secure Localization and Velocity Estimation in Mobile IoT Networks with Malicious Attacks

Li, Y; Ma, S; Yang, G; Wong, KK; (2020) Secure Localization and Velocity Estimation in Mobile IoT Networks with Malicious Attacks. IEEE Internet of Things Journal 10.1109/JIOT.2020.3036849. (In press). Green open access

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Abstract

IEEE Secure localization and velocity estimation are of great importance in Internet of Things (IoT) applications and are particularly challenging in the presence of malicious attacks. The problem becomes even more challenging in practical scenarios in which attack information is unknown and anchor node location uncertainties occur due to node mobility and falsification of malicious nodes. This challenging problem is investigated in this paper. With reasonable assumptions on the attack model and uncertainties, the secure localization and velocity estimation problem is formulated as an intractable maximum a posterior (MAP) problem. A variational-message-passing (VMP) based algorithm is proposed to approximate the true posterior distribution iteratively and find the closed-form estimates of the location and velocity securely. The identification of malicious nodes is also achieved in the meantime. The convergence of the proposed VMP-based algorithm is also discussed. Numerical simulations are finally conducted and the results show the VMP-based joint localization and velocity estimation algorithm can approach the Bayesian Cramer Rao bound and is superior to other secure algorithms.

Type: Article
Title: Secure Localization and Velocity Estimation in Mobile IoT Networks with Malicious Attacks
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/JIOT.2020.3036849
Publisher version: https://doi.org/10.1109/JIOT.2020.3036849
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10119451
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