972 citations · 4.5k across the 47 of their papers we have counts for
41 papers · 1 filter
Relay-Enabled Backscatter Communications: Linear Mapping and Resource Allocation
Rui Xu, Liqin Shi, Yinghui Ye +2
Relay-enabled backscatter communication (BC) is an intriguing paradigm to alleviate energy shortage and improve throughput of Internet-of-Things (IoT) devices. Most of the existing…
Deep Learning Based Predictive Beamforming Design
Juping Zhang, Gan Zheng, Yangyishi Zhang +2
This paper investigates deep learning techniques to predict transmit beamforming based on only historical channel data without current channel information in the multiuser multiple…
Model-free Optimization and Experimental Validation of RIS-assisted Wireless Communications under Rich Multipath Fading
Tianrui Chen, Minglei You, Yangyishi Zhang +6
Reconfigurable intelligent surface (RIS) devices have emerged as an effective way to control the propagation channels for enhancing the end-users' performance. However, RIS optimiz…
Meta-Reinforcement Learning Based Resource Allocation for Dynamic V2X Communications
Yi Yuan, Gan Zheng, Kai-Kit Wong +1
This paper studies the allocation of shared resources between vehicle-to-infrastructure (V2I) and vehicle-to-vehicle (V2V) links in vehicle-to-everything (V2X) communications. In e…
Embedding Model Based Fast Meta Learning for Downlink Beamforming Adaptation
Juping Zhang, Yi Yuan, Gan Zheng +2
This paper studies the fast adaptive beamforming for the multiuser multiple-input single-output downlink. Existing deep learning-based approaches assume that training and testing c…
Model-driven Learning for Generic MIMO Downlink Beamforming With Uplink Channel Information
Juping Zhang, Minglei You, Gan Zheng +2
Accurate downlink channel information is crucial to the beamforming design, but it is difficult to obtain in practice. This paper investigates a deep learning-based optimization ap…
Transfer Learning and Meta Learning Based Fast Downlink Beamforming Adaptation
Yi Yuan, Gan Zheng, Kai-Kit Wong +2
This paper studies fast adaptive beamforming optimization for the signal-to-interference-plus-noise ratio balancing problem in a multiuser multiple-input single-output downlink sys…
Deep Learning Enabled Optimization of Downlink Beamforming Under Per-Antenna Power Constraints: Algorithms and Experimental Demonstration
Juping Zhang, Wenchao Xia, Minglei You +3
This paper studies fast downlink beamforming algorithms using deep learning in multiuser multiple-input-single-output systems where each transmit antenna at the base station has it…
Model-Driven Beamforming Neural Networks
Wenchao Xia, Gan Zheng, Kai-Kit Wong +1
Beamforming is evidently a core technology in recent generations of mobile communication networks. Nevertheless, an iterative process is typically required to optimize the paramete…
Specific Absorption Rate-Aware Beamforming in MISO Downlink SWIPT Systems
Juping Zhang, Gan Zheng, Ioannis Krikidis +1
This paper investigates the optimal transmit beamforming design of simultaneous wireless information and power transfer (SWIPT) in the multiuser multiple-input-single-output (MISO)…
A Deep Learning Framework for Optimization of MISO Downlink Beamforming
Wenchao Xia, Gan Zheng, Yongxu Zhu +3
Beamforming is an effective means to improve the quality of the received signals in multiuser multiple-input-single-output (MISO) systems. Traditionally, finding the optimal beamfo…
Full-Duplex Cloud Radio Access Network: Stochastic Design and Analysis
Arman Shojaeifard, Kai-Kit Wong, Wei Yu +2
Full-duplex (FD) has emerged as a disruptive communications paradigm for enhancing the achievable spectral efficiency (SE), thanks to the recent major breakthroughs in self-interfe…
Secure Full-Duplex Two-Way Relaying for SWIPT
Alexander A. Okandeji, Muhammad R. A. Khandaker, Kai-Kit Wong +3
This letter studies bi-directional secure information exchange in a simultaneous wireless information and power transfer (SWIPT) system enabled by a full-duplex (FD) multiple-input…
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…
Truth-Telling Mechanism for Secure Two-Way Relay Communications with Energy-Harvesting Revenue
Muhammad R. A. Khandaker, Kai-Kit Wong, Gan Zheng
This paper brings the novel idea of paying the utility to the winning agents in terms of some physical entity in cooperative communications. Our setting is a secret two-way communi…
Simultaneous Wireless Information and Power Transfer in MISO Full-Duplex Systems
Alexander A. Okandeji, Muhammad R. A. Khandaker, Kai-Kit Wong +3
This paper investigates a multiuser multiple-input single-output (MISO) full-duplex (FD) system for simultaneous wireless information and power transfer (SWIPT), in which a multi-a…
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…
Physical Layer Security Jamming: Theoretical Limits and Practical Designs in Wireless Networks
Kanapathippillai Cumanan, Hong Xing, Peng Xu +5
Physical layer security has been recently recognized as a promising new design paradigm to provide security in wireless networks. In addition to the existing conventional cryptogra…
Self-Interference in Full-Duplex Multi-User MIMO Channels
Arman Shojaeifard, Kai-Kit Wong, Marco Di Renzo +3
We consider a multi-user multiple-input multiple-output (MIMO) setup where full-duplex (FD) multi-antenna nodes apply linear beamformers to simultaneously transmit and receive mult…
Massive MIMO-Enabled Full-Duplex Cellular Networks
Arman Shojaeifard, Kai-Kit Wong, Marco Di Renzo +3
In this paper, we provide a theoretical framework for the study of massive multiple-input multiple-output (MIMO)-enabled full-duplex (FD) cellular networks in which the self-interf…
Throughput Analysis and Optimization of Wireless-Powered Multiple Antenna Full-Duplex Relay Systems
Mohammadali Mohammadi, Batu K. Chalise, Himal A. Suraweera +3
We consider a full-duplex (FD) decode-and-forward system in which the time-switching protocol is employed by the multi-antenna relay to receive energy from the source and transmit…
Exploiting Known Interference as Green Signal Power for Downlink Beamforming Optimization
C. Masouros, G. Zheng
We propose a data-aided transmit beamforming scheme for the multi-user multiple-input-single-output (MISO) downlink channel. While conventional beamforming schemes aim at the minim…
Secrecy Analysis on Network Coding in Bidirectional Multibeam Satellite Communications
Ashkan Kalantari, Gan Zheng, Zhen Gao +2
Network coding is an efficient means to improve the spectrum efficiency of satellite communications. However, its resilience to eavesdropping attacks is not well understood. This p…
Full-Duplex MIMO Relaying Powered by Wireless Energy Transfer
Mohammadali Mohammadi, Himal A. Suraweera, Gan Zheng +2
We consider a full-duplex decode-and-forward system, where the wirelessly powered relay employs the time-switching protocol to receive power from the source and then transmit infor…