62 citations · 147 across the 25 of their papers we have counts for
17 papers · 1 filter
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…
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…
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…
Graph Neural Networks for Physical-Layer Security in Multi-User Flexible-Duplex Networks
Tharaka Perera, Saman Atapattu, Yuting Fang +1
This paper explores Physical-Layer Security (PLS) in Flexible Duplex (FlexD) networks, considering scenarios involving eavesdroppers. Our investigation revolves around the intricac…
Detection of Signals in Colored Noise: Leading Eigenvalue 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 an unknown non-random signal by capita…
A Sample-Deficient Analysis of the Leading Generalized Eigenvalue for the Detection of Signals in Colored Gaussian Noise
Prathapasinghe Dharmawansa, Saman Atapattu, Jamie Evans +1
This paper investigates the signal detection problem in colored Gaussian noise with an unknown covariance matrix. To be specific, we consider a sample deficient scenario in which t…
Optimum Location-Based Relay Selection in Wireless Networks
Hazer Inaltekin, Saman Atapattu, Jamie S. Evans
This paper studies the performance and key structural properties of the optimum location-based relay selection policy for wireless networks consisting of homogeneous Poisson distri…
Latency Minimization with Optimum Workload Distribution and Power Control for Fog Computing
Saman Atapattu, Chathuranga Weeraddana, Minhua Ding +2
This paper investigates a three-layer IoT-fog-cloud computing system to determine the optimum workload and power allocation at each layer. The objective is to minimize maximum per-…
Reconfigurable Intelligent Surface assisted Two-Way Communications: Performance Analysis and Optimization
Saman Atapattu, Rongfei Fan, Prathapasinghe Dharmawansa +3
In this paper, we investigate the two-way communication between two users assisted by a re-configurable intelligent surface (RIS). The scheme that two users communicate simultaneou…
Physical-Layer Security for Untrusted UAV-Assisted Full-Duplex Wireless Networks
Theshani Nuradha, Kasun T. Hemachandra, Tharaka Samarasinghe +1
The paper considers physical layer security (PLS) of an untrusted unmanned aerial vehicle (UAV) network, where a multitude of UAVs communicate in full-duplex (FD) mode. A source-ba…
Resource Allocation in Dynamic DF Relay for SWIPT Network with Circuit Power Consumption
Bhathiya Pilanawithana, Saman Atapattu, Jamie Evans
This paper considers simultaneous wireless information and power transfer (SWIPT) over a dual-hop dynamic decode-and-forward (DF) relay network with the power-splitting (PS) energy…
Channel Estimation for Ambient Backscatter Communication Systems with Massive-Antenna Reader
Wenjing Zhao, Gongpu Wang, Saman Atapattu +2
Ambient backscatter, an emerging green communication technology, has aroused great interest from both academia and industry. One open problem for ambient backscatter communication…
Location-Based Optimum Relay Selection in Random Spatial Networks
Saman Atapattu, Hazer Inaltekin, Jamie Evans
This paper investigates the location-based relay selection problem, where the source node chooses its relay from a set of spatially deployed decode-and-forward relays. The advantag…
Opportunistic Wireless Energy Transfer in Point-to-Point Links
Amanthi Thudugalage, Saman Atapattu, Jamie Evans
In this paper we consider wireless energy transfer for a point-to-point link. The energy transmitter sees a finite number of independent channel realizations, and, armed with (caus…
Average Transmission Success Probability Bound for SWIPT Relay Networks
Bhathiya Pilanawithana, Saman Atapattu, Jamie Evans
Wireless energy transferring technology offers a constant and instantaneous power for low-power applications such as Internet of Things (IoT) to become an affordable reality. This…
Outage Analysis of MIMO-MRC in Correlated Rician Fading
Prathapasinghe Dharmawansa, Kumara Kahatapitiya, Saman Atapattu +1
This paper addresses one of the classical problems in random matrix theory-- finding the distribution of the maximum eigenvalue of the correlated Wishart unitary ensemble. In parti…