57 citations · 70 across the 10 of their papers we have counts for
10 papers
Energy Efficient Reconfigurable Intelligent Surface Enabled Mobile Edge Computing Networks with NOMA
Zhiyang Li, Ming Chen, Zhaohui Yang +4
Reconfigurable intelligent surface (RIS) has emerged as a promising technology for achieving high spectrum and energy efficiency in future wireless communication networks. In this…
Beamforming Design for Multiuser Transmission Through Reconfigurable Intelligent Surface
Zhaohui Yang, Wei Xu, Chongwen Huang +2
This paper investigates the problem of resource allocation for multiuser communication networks with a reconfigurable intelligent surface (RIS)-assisted wireless transmitter. In th…
Channel Assignment in Uplink Wireless Communication using Machine Learning Approach
Guangyu Jia, Zhaohui Yang, Hak-Keung Lam +2
This letter investigates a channel assignment problem in uplink wireless communication systems. Our goal is to maximize the sum rate of all users subject to integer channel assignm…
Effective Capacity and Power Allocation for Machine-Type Communication
Mohammad Shehab, Hirley Alves, Matti Latva-aho
Effective capacity (EC) determines the maximum communication rate subject to a particular delay constraint. In this work, we analyze the EC of ultra reliable Machine Type Communica…
Improving Wireless Physical Layer Security via D2D Communication
Hao Xu, Cunhua Pan, Wei Xu +3
This paper investigates the physical layer security issue of a device-to-device (D2D) underlaid cellular system with a multi-antenna base station (BS) and a multi-antenna eavesdrop…
Performance Analysis of User-centric Virtual Cell Dense Networks over mmWave Channels
Jianfeng Shi, Yinlu Wang, Hao Xu +2
This paper analyzes the ergodic capacity of a user-centric virtual cell (VC) dense network, where multiple access points (APs) form a VC for each user equipment (UE) and transmit d…
Robust Beamforming with Pilot Reuse Scheduling in a Heterogeneous Cloud Radio Access Network
Hao Xu, Cunhua Pan, Wei Xu +3
This paper considers a downlink ultra-dense heterogeneous cloud radio access network (H-CRAN) which guarantees seamless coverage and can provide high date rates. In order to reduce…
Robust Transmission Design for Multi-Cell D2D Underlaid Cellular Networks
Hao Xu, Gordon L. Stüber, Wei Xu +4
This paper investigates the robust transmission design (RTD) of a multi-cell device-to-device (D2D) underlaid cellular network with imperfect channel state information (CSI). The b…
Association and Load Optimization with User Priorities in Load-Coupled Heterogeneous Networks
Zhaohui Yang, Wei Xu, Jianfeng Shi +2
In this paper, we consider the network utility maximization problem with various user priorities via jointly optimizing user association, load distribution and power control in a l…
Pilot Reuse Among D2D Users in D2D Underlaid Massive MIMO Systems
Hao Xu, Wei Xu, Zhaohui Yang +2
In a device-to-device (D2D) underlaid massive MIMO system, D2D transmitters reuse the uplink spectrum of cellular users (CUs), leading to cochannel interference. To decrease pilot…