52 citations · 74 across the 16 of their papers we have counts for
16 papers
Channel Estimation for RIS-Aided Multi-User mmWave Systems with Uniform Planar Arrays
Zhendong Peng, Gui Zhou, Cunhua Pan +4
In this paper, we adopt a three-stage based uplink channel estimation protocol with reduced pilot overhead for an reconfigurable intelligent surface (RIS)-aided multi-user (MU) mil…
Modeling, Analysis, and Optimization of Grant-Free NOMA in Massive MTC via Stochastic Geometry
Jiaqi Liu, Gang Wu, Xiaoxu Zhang +2
Massive machine-type communications (mMTC) is a crucial scenario to support booming Internet of Things (IoTs) applications. In mMTC, although a large number of devices are register…
Load Balanced Dynamic Resource Allocation for MTC Relay
Yifu Yang, Gang Wu, Weidang Lu +1
A Load Balancing Relay Algorithm (LBRA) was proposed to solve the unfair spectrum resource allocation in the traditional mobile MTC relay. In order to obtain reasonable use of spec…
Resource Allocation for Cooperative D2D-Enabled Wireless Caching Networks
Jiaqi Liu, Shengjie Guo, Sa Xiao +5
In this paper, we study the resource allocation problem for a cooperative device-to-device (D2D)-enabled wireless caching network, where each user randomly caches popular contents…
Power Control in Full Duplex Networks: Area Spectrum Efficiency and Energy Efficency
Chenyuan Feng, Yi Zhong, Tony Q. S. Quek +1
Full-duplex (FD) allows the exchange of data between nodes on the same temporal and spectrum resources, however, it introduces self interference (SI) and additional network interfe…
Learning-Based Coexistence in Two-Tier Heterogeneous Networks with Cognitive Small Cells
Lin Zhang, Guodong Zhao, Wenli Zhou +3
We study the coexistence problem in a two-tier heterogeneous network (HetNet) with cognitive small cells. In particular, we consider an underlay HetNet, where the cognitive small b…
Estimating the Distance Between Macro Base Station and Users in Heterogeneous Networks
Lin Zhang, Wenli Zhou, Wanbin Tang +2
In underlay heterogeneous networks (HetNets), the distance between a macro base station (MBS) and a macro user (MU) is crucial for a small-cell based station (SBS) to control the i…
Large-Scale Antenna-Assisted Grant-free Non-Orthogonal Multiple Access via Compressed Sensing
Yanlun Wu, Jun Fang
Support massive connectivity is an important requirement in 5G wireless communication system. For massive Machine Type Communication (MTC) scenario, since the network is expected t…
Decentralized Caching Schemes and Performance Limits in Two-layer Networks
Lin Zhang, Zhao Wang, Ming Xiao +3
We study the decentralized caching scheme in a two-layer network, which includes a sever, multiple helpers, and multiple users. Basically, the proposed caching scheme consists of t…
Primary Channel Gain Estimation for Spectrum Sharing in Cognitive Radio Networks
Lin Zhang, Guodong Zhao, Wenli Zhou +4
In cognitive radio networks, the channel gain between primary transceivers, namely, primary channel gain, is crucial for a cognitive transmitter (CT) to control the transmit power…
Energy Efficient Resource Allocation for Control Data Separation Architecture based H-CRAN with Heterogeneous Fronthaul
Qiang Liu, Gang Wu, Yingchu Guo +1
Control data separation architecture (CDSA) is a more efficient architecture to overcome the overhead issue than the conventional cellular networks, especially for the huge bursty…
Efficient Scheduling and Power Allocation for D2D-assisted Wireless Caching Networks
Lin Zhang, Ming Xiao, Gang Wu +1
We study an one-hop device-to-device (D2D) assisted wireless caching network, where popular files are randomly and independently cached in the memory of end-users. Each user may ob…
Joint Channel-and-Data Estimation for Large-MIMO Systems with Low-Precision ADCs
Chao-Kai Wen, Shi Jin, Kai-Kit Wong +2
The use of low precision (e.g., 1-3 bits) analog-to-digital convenors (ADCs) in very large multiple-input multiple-output (MIMO) systems is a technique to reduce cost and power con…
Utility-maximization Resource Allocation for Device-to-Device Communication Underlaying Cellular Networks
Jialiang Zhang, Gang Wu, Wenhui Xiong +2
Device-to-device(D2D) underlaying communication brings great benefits to the cellular networks from the improvement of coverage and spectral efficiency at the expense of complicate…
Joint Relay Selection and Link Adaptation for Distributed Beamforming in Regenerative Cooperative Networks
Wei Yang, Lihua Li, Gang Wu +1
Relay selection enhances the performance of the cooperative networks by selecting the links with higher capacity. Meanwhile link adaptation improves the spectral efficiency of wire…
Joint Uplink and Downlink Relay Selection in Cooperative Cellular Networks
Wei Yang, Lihua Li, Gang Wu +2
We consider relay selection technique in a cooperative cellular network where user terminals act as mobile relays to help the communications between base station (BS) and mobile st…