194 citations · 285 across the 12 of their papers we have counts for
8 papers · 1 filter
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…
Joint Altitude, Beamwidth, Location and Bandwidth Optimization for UAV-Enabled Communications
Zhaohui Yang, Cunhua Pan, Mohammad Shikh-Bahaei +4
This letter investigates an uplink power control problem for unmanned aerial vehicles (UAVs) assisted wireless communications. We jointly optimize the UAV's flying altitude, antenn…
Cache Placement in Two-Tier HetNets with Limited Storage Capacity: Cache or Buffer?
Zhaohui Yang, Cunhua Pan, Yijin Pan +4
In this paper, we aim to minimize the average file transmission delay via bandwidth allocation and cache placement in two-tier heterogeneous networks with limited storage capacity,…
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…