3 citations · 5 across the 9 of their papers we have counts for
6 papers · 1 filter
A Majorization-Minimization Framework for Activity Detection in Mixed Near-and-Far-Field Random Access
Xinjue Wang, Zhi-Yong Wang, Sergiy A. Vorobyov +3
Grant-free random access in massive machine-type communications requires detecting a small active set from length-L uplink pilots received at an M-antenna base station. Classical c…
Covariance-Aware MM-PGD for Mixed Near-/Far-Field Activity Detection
Xinjue Wang, Zhi-Yong Wang, Sergiy A. Vorobyov +3
Grant-free activity detection with mixed near-field (NF) and far-field (FF) devices is an important problem that can be addressed via covariance-based detectors. The difficulty is…
Reconfigurable Intelligent Surfaces for Cognitive Radio Networks: Design, Optimization, and Emerging Trends
Diluka Galappaththige, Chintha Tellambura, Ranga Kulathunga +1
Reconfigurable intelligent surfaces (RISs) enable programmable wireless propagation environments, offering new opportunities for cognitive radio networks (CRNs) to improve spectrum…
Set Transformer-Based Beamforming Design for Cell-Free Integrated Sensing and Communication
Ranga Kulathunga, Diluka Galappaththige, Gayan Aruma Baduge +1
Existing cell-free integrated sensing and communication (CF-ISAC) beamforming algorithms predominantly rely on classical optimization techniques, which often entail high computatio…
Cell-Free Integrated Sensing and Communication: Principles, Advances, and Future Directions
Diluka Galappaththige, Mohammadali Mohammadi, Gayan Aruma Baduge +1
Cell-free (CF) integrated sensing and communication (ISAC) combines CF architecture with ISAC. CF employs distributed access points, eliminates cell boundaries, and enhances covera…
Performance Analysis of Intelligent Reflective Surface Aided Wireless Communications
Dulaj Gunasinghe, Dhanushka Kudathanthirige, Gayan Amarasuriya Aruma Baduge
The fundamental performance metrics of an intelligent reflective surface (IRS)-aided wireless system are presented. By optimizing the IRS phase-shift matrix, the received signal-to…