959 citations · 4.7k across the 87 of their papers we have counts for
14 papers · 1 filter
Reconfigurable Intelligent Surface Enhanced NOMA Assisted Backscatter Communication System
Jiakuo Zuo, Yuanwei Liu, Liang Yang +2
A reconfigurable intelligent surface (RIS) enhanced non-orthogonal multiple access assisted backscatter communication (RIS-NOMABC) system is considered. A joint optimization proble…
Reconfigurable Intelligent Surface Aided Constant-Envelope Wireless Power Transfer
Huiyuan Yang, Xiaojun Yuan, Jun Fang +1
By reconfiguring the propagation environment of electromagnetic waves artificially, reconfigurable intelligent surfaces (RISs) have been regarded as a promising and revolutionary h…
Deep Transfer Learning-Assisted Signal Detection for Ambient Backscatter Communications
Chang Liu, Xuemeng Liu, Zhiqiang Wei +3
Existing tag signal detection algorithms inevitably suffer from a high bit error rate (BER) due to the difficulties in estimating the channel state information (CSI). To eliminate…
Deep Transfer Learning for Signal Detection in Ambient Backscatter Communications
Chang Liu, Zhiqiang Wei, Derrick Wing Kwan Ng +2
Tag signal detection is one of the key tasks in ambient backscatter communication (AmBC) systems. However, obtaining perfect channel state information (CSI) is challenging and cost…
Toward Smart Security Enhancement of Federated Learning Networks
Junjie Tan, Ying-Chang Liang, Nguyen Cong Luong +1
As traditional centralized learning networks (CLNs) are facing increasing challenges in terms of privacy preservation, communication overheads, and scalability, federated learning…
Joint Uplink-and-Downlink Optimization of 3D UAV Swarm Deployment for Wireless-Powered NB-IoT Networks
Han-Ting Ye, Xin Kang, Jingon Joung +1
This paper investigates a full-duplex orthogonal-frequency-division multiple access (OFDMA) based multiple unmanned aerial vehicles (UAVs)-enabled wireless-powered Internet-of-Thin…
Reconfigurable Intelligent Surface Empowered Device-to-Device Communication Underlaying Cellular Networks
Gang Yang, Yating Liao, Ying-Chang Liang +1
Reconfigurable intelligent surface (RIS) is a new and revolutionary technology to achieve spectrum-, energy- and cost-efficient wireless networks. This paper studies the resource a…
Symbiotic Radio: Cognitive Backscattering Communications for Future Wireless Networks
Ying-Chang Liang, Qianqian Zhang, Erik G. Larsson +1
The heterogenous wireless services and exponentially growing traffic call for novel spectrum- and energy-efficient wireless communication technologies. In this paper, a new techniq…
Reconfigurable Intelligent Surfaces for Energy Efficiency in D2D Communication Network
Shuaiqi Jia, Xiaojun Yuan, Ying-Chang Liang
In this letter, the joint power control of D2D users and the passive beamforming of reconfigurable intelligent surfaces (RIS) for a RIS-aided device-to-device (D2D) communication n…
Reconfigurable Intelligent Surface Aided Constant-Envelope Wireless Power Transfer
Huiyuan Yang, Xiaojun Yuan, Jun Fang +1
By reconfiguring the propagation environment of electromagnetic waves artificially, reconfigurable intelligent surfaces (RISs) have been regarded as a promising and revolutionary h…
Two-Timescale Optimization for Intelligent Reflecting Surface Aided D2D Underlay Communication
Chang Cai, Huiyuan Yang, Xiaojun Yuan +1
The performance of a device-to-device (D2D) underlay communication system is limited by the co-channel interference between cellular users (CUs) and D2D devices. To address this ch…
Deep Reinforcement Learning for Multi-Agent Power Control in Heterogeneous Networks
Lin Zhang, Ying-Chang Liang
We consider a typical heterogeneous network (HetNet), in which multiple access points (APs) are deployed to serve users by reusing the same spectrum band. Since different APs and u…
Vision, Requirements, and Technology Trend of 6G: How to Tackle the Challenges of System Coverage, Capacity,User Data-Rate and Movement Speed
Shanzhi Chen, Ying-Chang Liang, Shaohui Sun +3
Since 5G new radio comes with non-standalone (NSA) and standalone (SA) versions in 3GPP, research on 6G has been on schedule by academics and industries. Though 6G is supposed to h…
Deep Reinforcement Learning for Backscatter-Aided Data Offloading in Mobile Edge Computing
Shimin Gong, Yutong Xie, Jing Xu +2
Wireless network optimization has been becoming very challenging as the problem size and complexity increase tremendously, due to close couplings among network entities with hetero…