Secure Radar-Communication Systems With Malicious Targets: Integrating Radar, Communications and Jamming Functionalities

By Nanchi Su, Fan Liu, Christos Masouros. IEEE Transactions on Wireless Communications, 2019

328 citations recorded by the source corpus.

This article studies the physical layer security in a multiple-input-multiple-output (MIMO) dual-functional radar-communication (DFRC) system, which communicates with downlink cellular users and tracks radar targets simultaneously. Here, the radar targets are considered as potential eavesdroppers which might eavesdrop the information from the communication transmitter to legitimate users. To ensure the transmission secrecy, we employ artificial noise (AN) at the transmitter and formulate optimization problems by minimizing the signal-to-noise ratio (SNR) received at radar targets, while guaranteeing the signal-to-interference-plus-noise ratio (SINR) requirement at legitimate users. We first consider the ideal case where both the target angle and the channel state information (CSI) are precisely known. The scenario is further extended to more general cases with target location uncertainty and CSI errors, where we propose robust optimization approaches to guarantee the worst-case performance. Accordingly, the computational complexity is analyzed for each proposed method. Our numerical results show the feasibility of the algorithms with the existence of instantaneous and statistical CSI error. In addition, the secrecy rate of secure DFRC system grows with the increasing angular interval of location uncertainty.

Subfields: Aerospace Engineering, Artificial Intelligence, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/12064d8a32ab85eb1de46377850330a1a74d761d

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Citations in the corpus

Twelve Scientific Challenges for 6G: Rethinking the Foundations of Communications Theory (2022, methodology): “In [106], a dual-functional radar and communication (DFRC) model has been adopted, where the DFRC base station focuses on designing waveforms that are deemed “suitable” for both radar and communication tasks.”
Enabling Joint Communication and Radar Sensing in Mobile Networks—A Survey (2020, methodology): “Current research has been limited to propagation path optimization [90], [97], [116], [117] and secure communications [118].”
Towards Multi-Functional 6G Wireless Networks: Integrating Sensing, Communication and Security (2021, background): “Indeed, the target that is being sensed can potentially exploit the information-bearing signal, and detect the conﬁdential message intended for the information users [3].”
An Overview of Signal Processing Techniques for Joint Communication and Radar Sensing (2021, unknown): “Examples are sensing assisted secure communications [45] and BF [46]–[49].”
Integrated Sensing and Communications: Toward Dual-Functional Wireless Networks for 6G and Beyond (2021, methodology): “Recent work has focused on addressing this vulnerability of ISAC by designing secure ISAC transmission methods [196], [201].”
Integrated Sensing and Communications: Recent Advances and Ten Open Challenges (2023, methodology): “4) ISAC Applications: The ISAC network of the future has to be rolled out with security and privacy guarantees [190], [191].”