TH3.R6.2

Transmitter Actions for Secure Integrated Sensing and Communication

Truman Welling, The Ohio State University, United States; Onur Günlü, Linköping University, Sweden; Aylin Yener, The Ohio State University, United States

Session:
Integrated Sensing and Communication 1

Track:
20: Wireless Communications and Networks

Location:
Sigma/Delta

Presentation Time:
Thu, 11 Jul, 14:55 - 15:15

Session Chair:
Tobias Oechtering, KTH
Abstract
This work models a secure integrated sensing and communication (ISAC) system as a wiretap channel with action-dependent channel states and channel output feedback, e.g., obtained through reflections. The transmitted message is split into a common and a secure message, both of which must be reliably recovered at the legitimate receiver, while the secure message needs to be kept secret from the eavesdropper. The transmitter actions, such as beamforming vector design, affect the corresponding state at each channel use. The action sequence is modeled to depend on both the transmitted message and channel output feedback. For perfect channel output feedback, the secrecy-distortion regions are provided for physically-degraded and reversely-physically-degraded secure ISAC channels with transmitter actions. The corresponding rate regions when the entire message should be kept secret are also provided. The results are illustrated through characterizing the secrecy-distortion region of a binary example.
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