792 citations · 3.8k across the 139 of their papers we have counts for
10 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…
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…
Robust Beamforming Design for Ultra-dense User-Centric C-RAN in the Face of Realistic Pilot Contamination and Limited Feedback
Cunhua Pan, Hong Ren, Maged Elkashlan +2
The ultra-dense cloud radio access network (UD-CRAN), in which remote radio heads (RRHs) are densely deployed in the network, is considered. To reduce the channel estimation overhe…
Reconfigurable Antenna Multiple Access for 5G mmWave Systems
Mojtaba Ahmadi Almasi, Hani Mehrpouyan, David Matolak +2
This paper aims to realize a new multiple access technique based on recently proposed millimeter-wave reconfigurable antenna architectures. To this end, first we show that integrat…
Compressive Sensing Based User Clustering for Downlink NOMA Systems with Decoding Power
Zhaohui Yang, Cunhua Pan, Wei Xu +1
This letter investigates joint power control and user clustering for downlink non-orthogonal multiple access systems. Our aim is to minimize the total power consumption by taking i…
Optimal Fairness-Aware Time and Power Allocation in Wireless Powered Communication Networks
Zhaohui Yang, Wei Xu, Yijin Pan +2
In this paper, we consider the sum -fair utility maximization problem for joint downlink (DL) and uplink (UL) transmissions of a wireless powered communication network (WPCN) vi…
Multiple Antenna Assisted Non-Orthogonal Multiple Access
Yuanwei Liu, Hong Xing, Cunhua Pan +3
Non-orthogonal multiple access (NOMA) is potentially capable of circumventing the limitations of the classic orthogonal multiple access schemes, hence it has recently received sign…