Securing Multi-User Uplink Communications Against Mobile Aerial Eavesdropper via Sensing | IEEE Journals & Magazine | IEEE Xplore

Securing Multi-User Uplink Communications Against Mobile Aerial Eavesdropper via Sensing


Abstract:

In this paper, we propose a secure multi-user uplink communicaion scheme against a mobile aerial eavesdropper (AE) in Integrated Sensing and Communication (ISAC) systems,...Show More

Abstract:

In this paper, we propose a secure multi-user uplink communicaion scheme against a mobile aerial eavesdropper (AE) in Integrated Sensing and Communication (ISAC) systems, where the ISAC base station transmits radar signals to track and jam the AE. For tracking mobile AE, we adopt an extended Kalman filter technique to predict AE's motion state. Based on the tracking information we formulate an optimization problem to jointly design radar signal and receiver beamformer for improving the secrecy performance. To deal with the non-convex constraints and the coupled variables, we propose an alternating optimization based algorithm via iteratively solving a Fractional Programming (FP) problem and a Semidefinite Program (SDP) problem. Numerical results show that the proposed algorithm can achieve higher secrecy capacity and better fairness, compared to the state-of-the-art techniques.
Published in: IEEE Transactions on Vehicular Technology ( Volume: 72, Issue: 7, July 2023)
Page(s): 9608 - 9613
Date of Publication: 27 February 2023

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