6 papers
Standard Condition Number-Based Robust Signal Detection with Whitening under Uncertainty
Tharindu Udupitiya, Saman Atapattu, Prathapasinghe Dharmawansa +2
Robust signal detection in colored noise with unknown covariance is essential in radar, cognitive radio, integrated sensing and communication (ISAC), and quantum sensing applicatio…
Multi-Shot Quantum Sensing for RF Signal Detection with MIMO Rydberg-Atom Receivers
Saman Atapattu, Harini Hapuarachchi, Nathan Ross
Rydberg-atom quantum receivers (RAQRs) enable electric-field sensing with quantum-noise-limited performance, yet their optical readout provides only magnitude measurements whose fl…
Dynamic Scheduling for Enhanced Performance in RIS-assisted Cooperative Network with Interference
Yomali Lokugama, Saman Atapattu, Nathan Ross +2
Reconfigurable Intelligent Surfaces (RIS) have emerged as transformative technologies, enhancing spectral efficiency and improving interference management in multi-user cooperative…
Opportunistic Beamforming and Dynamic Scheduling for Multi-User MIMO-ISAC Systems
Tharaka Perera, Saman Atapattu, Chathuranga Weeraddana +1
This research presents a novel framework integrating Flexible-Duplex (FlexD) and Integrated Sensing and Communications (ISAC) technologies to address the challenges of spectrum eff…
Max-Min Fairness for IRS-Assisted Secure Two-Way Communications
Harindu Jayarathne, Tharindu Wickremasinghe, Kasun T. Hemachandra +2
This paper investigates an intelligent reflective surface (IRS) assisted secure multi-user two-way communication system. The aim of this paper is to enhance the physical layer secu…
Detection of Signals in Colored Noise: Roy's Largest Root Test for Non-central -matrices
Prathapasinghe Dharmawansa, Saman Atapattu, Jamie Evans +1
This paper investigates the signal detection problem in colored noise with an unknown covariance matrix. In particular, we focus on detecting a non-random signal by capitalizing on…