9 papers
Robust Beamforming Design for Secure Uplink NOMA-ISAC
Azadeh Tabeshnezhad, Milad Tatar Mamaghani, A. Lee Swindlehurst +2
Integrated sensing and communication is an important technology for sixth-generation (6G) mobile networks, enabling the joint use of communication and radar sensing within a unifie…
Near-Field Secure Beamfocusing With Receiver-Centered Protected Zone
Cen Liu, Xiangyun Zhou, Nan Yang +2
This work studies near-field secure communications through transmit beamfocusing. We examine the benefit of having a protected eavesdropper-free zone around the legitimate receiver…
MIMO Detection with Spatial Sigma-Delta ADCs: A Variational Bayesian Approach
Toan-Van Nguyen, Sajjad Nassirpour, Italo Atzeni +3
The spatial Sigma-Delta () architecture can be leveraged to reduce the quantization noise and enhance the effective resolution of few-bit analog-to-digital converters (ADCs)…
Jammer Mitigation in Absorptive RIS-Assisted Uplink NOMA
Azadeh Tabeshnezhad, Yuqing Zhu, Artem Vilenskiy +3
Non-orthogonal multiple access (NOMA) is a promising technology for next-generation wireless communication systems due to its enhanced spectral efficiency. In this paper, we consid…
RIS-Assisted Sensing: A Nested Tensor Decomposition-Based Approach
Kenneth BenÃcio, Fazal-E-Asim, Bruno Sokal +4
We study a monostatic multiple-input multiple-output sensing scenario assisted by a reconfigurable intelligent surface using tensor signal modeling. We propose a method that exploi…
Model-Based Machine Learning for Max-Min Fairness Beamforming Design in JCAS Systems
Mengyuan Ma, Tianyu Fang, Nir Shlezinger +3
Joint communications and sensing (JCAS) is expected to be a crucial technology for future wireless systems. This paper investigates beamforming design for a multi-user multi-target…