61 citations · 89 across the 10 of their papers we have counts for
11 papers
Channel Estimation for Intelligent Reflecting Surface Assisted Backscatter Communication
Samith Abeywickrama, Changsheng You, Rui Zhang +1
Intelligent reflecting surface (IRS) is a promising technology to improve the performance of backscatter communication systems by smartly reconfiguring the multi-reflection channel…
Refined Nonlinear Rectenna Modeling and Optimal Waveform Design for Multi-User Multi-Antenna Wireless Power Transfer
Samith Abeywickrama, Rui Zhang, Chau Yuen
In this paper, we study the optimal waveform design for wireless power transfer (WPT) from a multi-antenna energy transmitter (ET) to multiple single-antenna energy receivers (ERs)…
Intelligent Reflecting Surface: Practical Phase Shift Model and Beamforming Optimization
Samith Abeywickrama, Rui Zhang, Qingqing Wu +1
Intelligent reflecting surface (IRS) that enables the control of wireless propagation environment has recently emerged as a promising cost-effective technology for boosting the spe…
Opportunistic Wireless Energy Beamforming using RSSI Feedback
Samith Abeywickrama
This paper proposes a novel channel estimation method, and a cluster-based opportunistic scheduling policy, that enhances the efficiency of wireless energy transfer in a system con…
Intelligent Reflecting Surface: Practical Phase Shift Model and Beamforming Optimization
Samith Abeywickrama, Rui Zhang, Chau Yuen
Intelligent reflecting surface (IRS) that enables the control of the wireless propagation environment has been looked upon as a promising technology for boosting the spectrum and e…
Cluster-based Wireless Energy Transfer for Low Complex Energy Receivers
Samith Abeywickrama, Tharaka Samarasinghe, Chau Yuen +1
This paper proposes a novel channel estimation method and a cluster-based opportunistic scheduling policy, for a wireless energy transfer (WET) system consisting of multiple low-co…