11 papers
Low Overhead and Scalable Time-Frequency Pilots Design for MIMO OTFS Channel Estimation
Kailong Wang, Athina Petropulu
Orthogonal Time Frequency Space (OTFS) modulation has recently garnered attention for its robustness in high-mobility wireless communication environments. In OTFS, the data symbols…
Time-Modulated Intelligent Reflecting Surfaces for Integrated Sensing, Communication and Security: A Generative AI Design Framework
Zhihao Tao, Athina Petropulu, H. Vincent Poor
We propose a novel approach to achieve physical layer security for integrated sensing and communication (ISAC) systems operating in the presence of targets that may be eavesdropper…
Meta-Learning-Driven GFlowNets for 3D Directional Modulation in Mobile Wireless Systems
Zhihao Tao, Athina P. Petropulu
In our prior work we have proposed the use of GFlowNets, a generative AI (GenAI) framework, for designing a secure communication system comprising a time-modulated intelligent refl…
Sensing Security in Near-Field ISAC: Exploiting Scatterers for Eavesdropper Deception
Jiangong Chen, Xia Lei, Kaitao Meng +4
In this paper, we explore sensing security in near-field (NF) integrated sensing and communication (ISAC) scenarios by exploiting known scatterers in the sensing scene. We propose…
Wideband Integrated Sensing and Communications: Spectral Efficiency and Signaling Design
Henglin Pu, Zhu Han, Athina P. Petropulu +1
In integrated sensing and communications (ISAC), a distinguishing feature of 6G wireless networks, the main challenge lies in integrating the two distinct functions of sensing and…
Advancing the Control of Low-Altitude Wireless Networks: Architecture, Design Principles, and Future Directions
Haijia Jin, Weijie Yuan, Jun Wu +11
This article introduces a control-oriented low-altitude wireless network (LAWN) that integrates near-ground communications and remote estimation of the internal system state. This…