A5017824926- Advanced Wireless Communication Technologies
- Full-Duplex Wireless Communications
- Radar Systems and Signal Processing
- Energy Harvesting in Wireless Networks
- Antenna Design and Analysis
- Satellite Communication Systems
- Wireless Communication Security Techniques
- Advanced MIMO Systems Optimization
- Indoor and Outdoor Localization Technologies
- Antenna Design and Optimization
- Energy Efficient Wireless Sensor Networks
- Network Time Synchronization Technologies
- Advanced SAR Imaging Techniques
- IoT Networks and Protocols
- Wireless Sensor Networks and IoT
- Wireless Communication Networks Research
- Optical Wireless Communication Technologies
Trinity College Dublin
2025
National Sun Yat-sen University
2022-2024
In this work, we address the problem of a joint robust transmission, reflection and reception strategy design at an active reconfigurable intelligent surface (RIS)-assisted underlay multiple input output (MIMO) cognitive radio networks in which secondary transmitter serves receivers simultaneously. As such, study impact imperfection channel state information (CSI) following norm-bounded error model. A sum mean squared (MSE) minimization is formulated by jointly optimizing transmit...
This letter investigates a full-duplex (FD) non-orthogonal multiple access (NOMA) enabled multiuser transmission with backscatter communication (FD-MTBC), where downlink NOMA network is served by an FD source while devices transmit their information to the simultaneously. Considering constraints for successive interference cancellation (SIC) and desired target uplink sum rate, we formulate optimization problem maximize rate. Further, propose iterative algorithm that jointly optimizes power...
This work investigates the performance of simultaneous wireless information and power transfer (SWIPT) in a reconfigurable intelligent surface (RIS)-aided internet things (IoT) communications under imperfect channel state (CSI). We formulate multi-objective optimization problem (MOOP) to design transmit precoding vector (TPV) at base station (BS) phase shift matrix (PSM) RIS that jointly maximizes energy efficiency (EE) harvested (HP) norm bounded CSI error model. Due conflicting objective...
This paper investigates an unconventional framework of rate-splitting multiple access (RSMA)-integrated full-duplex (FD) system to attain spectral-efficient multi-user communication. The considered FD-RSMA divides and encodes the original messages each downlink (DL) uplink (UL) into two different sub-messages, later transmits them at same resource block, resulting in strong inter-user interference cross-link interference, i.e., self-interference (SI) co-channel (CCI). Specifically, we focus...
Reconfigurable intelligent surface (RIS) is an emerging next-generation technology that can improve the energy efficiency using multiple low-power passive metasurfaces which reflect desired signal to users. In this work, we consider a RIS-assisted underlay multiuser multiple-input multiple-output cognitive radio network and formulate weighted maximization problem in order jointly optimize active precoding matrix (APM) at secondary transmitter (PPM) RIS subject constraints of available...
This work investigates the performance of simultaneous wireless information and power transfer (SWIPT) in a reconfigurable intelligent surface (RIS)-aided green multiple input single output (MISO) communications under imperfect channel state (CSI). With an aim to provide robust transmission, we formulate multi-objective optimization problem (MOOP) design transmit precoding vector (TPV) at base station (BS) phase shift matrix (PSM) RIS that maximizes energy efficiency receivers harvested norm...
This paper explores an unconventional physical-layer architecture, i.e., full-duplex (FD) integrated rate-splitting multiple access (RSMA) to attain a better trade-off between energy efficiency (EE) and spectral (SE) under multi-user scenarios. The considered FD-RSMA system divides encodes the original messages of each downlink (DL) uplink (UL) into sub-messages, later transmits them at same resource block, resulting in strong inter-user interference cross-link interference,...