275 citations · 1.2k across the 41 of their papers we have counts for
46 papers
Privacy-Aware ISAC for Full-Duplex Monostatic Systems Using Movable Antennas
Yasas Savinda, Mohammadali Mohammadi, Himal A. Suraweera +1
This work investigates sensing privacy in full-duplex (FD) monostatic integrated sensing and communication (ISAC) systems with movable antennas (MAs). The proposed approach jointly…
Analysis of Fluid Antenna Systems with Continuous Positioning and Spatial Correlation
Gayani Siriwardana, Peter J. Smith, Himal A. Suraweera +1
We analyze multi-user fluid antenna systems with continuous positioning over a track of length L under a spatial correlation model, where exact performance distributions become ana…
Performance Analysis of Movable Antenna Arrays
Gayani Siriwardana, Peter J. Smith, Himal A. Suraweera +1
This paper provides a thorough mathematical analysis of continuous movable antenna (MA) arrays. Focusing on the multiple antenna case, we consider a linear antenna array with multi…
Repeater-Assisted Massive MIMO Full-Duplex Communications
Mohammadali Mohammadi, Dhanushka Kudathanthirige, Himal A. Suraweera +2
We consider a wireless network comprising multiple singleantenna repeaters that amplify and instantaneously re-transmit received signals in a full-duplex (FD) communication setting…
Chaotic Noncoherent SWIPT in Multi-Functional RIS-Aided Systems
Priyadarshi Mukherjee, Constantinos Psomas, Himal A. Suraweera +1
In this letter, we investigate the design of chaotic signal-based transmit waveforms in a multi-functional reconfigurable intelligent surface (MF-RIS)-aided set-up for simultaneous…
Damage Assessment after Natural Disasters with UAVs: Semantic Feature Extraction using Deep Learning
Nethmi S. Hewawiththi, M. Mahesha Viduranga, Vanodhya G. Warnasooriya +4
Unmanned aerial vehicle-assisted disaster recovery missions have been promoted recently due to their reliability and flexibility. Machine learning algorithms running onboard signif…
DRL-AdaPart: DRL-Driven Adaptive STAR-RIS Partitioning for Fair and Efficient Resource Utilization
Ashok S. Kumar, Nancy Nayak, Sheetal Kalyani +2
Efficient resource utilization is proposed for simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RIS) to ensure fair and high data rates. We opti…
Analysis and Optimization of RIS-Assisted Cell-Free Massive MIMO NOMA Systems
Malay Chakraborty, Ekant Sharma, Himal A. Suraweera +1
We consider a reconfigurable intelligent surface (RIS) assisted cell-free massive multiple-input multiple-output non-orthogonal multiple access (NOMA) system, where each access poi…
Handover Management through Reconfigurable Intelligent Surfaces for VLC under Blockage Conditions
Kapila W. S. Palitharathna, Anna Maria Vegni, Panagiotis D. Diamantoulakis +2
In this paper, we consider an indoor visible light communication (VLC) system with multiple "white" light emitting diodes serving to form overlapping wireless communication cells.…
URLLC-Aware Proactive UAV Placement in Internet of Vehicles
Chen-Feng Liu, Nirmal D. Wickramasinghe, Himal A. Suraweera +2
Unmanned aerial vehicles (UAVs) are envisioned to provide diverse services from the air. The service quality may rely on the wireless performance which is affected by the UAV's pos…
Continuous Fluid Antenna Systems: Modeling and Analysis
Constantinos Psomas, Peter J. Smith, Himal A. Suraweera +1
Fluid antennas (FAs) is a promising technology for introducing flexibility and reconfigurability in wireless networks. Recent research efforts have highlighted the potential gains…
Full-Duplex Wireless for 6G: Progress Brings New Opportunities and Challenges
Besma Smida, Ashutosh Sabharwal, Gabor Fodor +3
The use of in-band full-duplex (FD) enables nodes to simultaneously transmit and receive on the same frequency band, which challenges the traditional assumption in wireless network…
A DRL Approach for RIS-Assisted Full-Duplex UL and DL Transmission: Beamforming, Phase Shift and Power Optimization
Nancy Nayak, Sheetal Kalyani, Himal A. Suraweera
We propose a deep reinforcement learning (DRL) approach for a full-duplex (FD) transmission that predicts the phase shifts of the reconfigurable intelligent surface (RIS), base sta…
Full-Duplex Transceivers for Next-Generation Wireless Communication Systems
Ian P. Roberts, Himal A. Suraweera
Wireless communication systems can be enhanced at the link level, in medium access, and at the network level when transceivers are equipped with full-duplex capability: the transfo…
Sum Rate Maximization in STAR-RIS Assisted Full-Duplex Communication Systems
Pulasthi P. Perera, Vanodhya G. Warnasooriya, Dhanushka Kudathanthirige +1
The sum-rate performance of simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted full-duplex (FD) communication systems is investigated.…
Risk-Sensitive Task Fetching and Offloading for Vehicular Edge Computing
Sadeep Batewela, Chen-Feng Liu, Mehdi Bennis +2
This letter studies an ultra-reliable low latency communication problem focusing on a vehicular edge computing network in which vehicles either fetch and synthesize images recorded…
Antenna Selection in Full-Duplex Cooperative NOMA Systems
Mohammadali Mohammadi, Zahra Mobini, Himal A. Suraweera +1
We investigate the problem of antenna selection (AS) in full-duplex (FD) cooperative non-orthogonal multiple access (NOMA) systems, where a multi-antenna FD relay assists transmiss…
Full-Duplex Non-Orthogonal Multiple Access for Modern Wireless Networks
Mohammadali Mohammadi, Xiaoyan Shi, Batu K. Chalise +3
Non-orthogonal multiple access (NOMA) is an interesting concept to provide higher capacity for future wireless communications. In this article, we consider the feasibility and bene…
Full-duplex Multi-Antenna Relay Assisted Cooperative Non-Orthogonal Multiple Access
Zahra Mobini, Mohammadali Mohammadi, Himal A. Suraweera +1
We consider a cooperative non-orthogonal multiple access (NOMA) network in which a full-duplex (FD) multi-antenna relay assists transmission from a base station (BS) to a set of fa…
Joint Beamforming Design and Power Allocation for Full-Duplex NOMA Cognitive Relay Systems
Mohammadali Mohammadi, Batu K. Chalise, Azar Hakimi +2
In this paper, we consider a non-orthogonal multiple access cognitive radio network, where a full-duplex multi-antenna relay assists transmission from a base station (BS) to a cogn…
Beamforming Optimization for Full-Duplex Wireless-powered MIMO Systems
Batu K. Chalise, Himal A. Suraweera, Gan Zheng +1
We propose techniques for optimizing transmit beamforming in a full-duplex multiple-input-multiple-output (MIMO) wireless-powered communication system, which consists of two phases…
Wireless Information and Power Transfer in Full-Duplex Systems with Massive Antenna Arrays
Mohammadali Mohammadi, Batu K. Chalise, Himal A. Suraweera +1
We consider a multiuser wireless system with a full-duplex hybrid access point (HAP) that transmits to a set of users in the downlink channel, while receiving data from a set of en…
Wireless Powered Dual-Hop Multi-Antenna Relaying Systems: Impact of CSI and Antenna Correlation
Han Liang, Caijun Zhong, Xiaoming Chen +2
This paper investigates the impact of the channel state information (CSI) and antenna correlation at the multi-antenna relay on the performance of wireless powered dual-hop amplify…
Optimization and Analysis of Wireless Powered Multi-antenna Cooperative Systems
Han Liang, Caijun Zhong, Himal A. Suraweera +2
In this paper, we consider a three-node cooperative wireless powered communication system consisting of a multi-antenna hybrid access point (H-AP) and a single-antenna relay and a…