84 citations · 220 across the 21 of their papers we have counts for
22 papers
CoMP Transmission in Downlink NOMA-Based Cellular-Connected UAV Networks
Hongguang Sun, Linyi Zhang, Tony Q. S. Quek +2
In this paper, we study the integration between the coordinated multipoint (CoMP) transmission and the non-orthogonal multiple access (NOMA) in the downlink cellular-connected UAV…
DPP-based Client Selection for Federated Learning with Non-IID Data
Yuxuan Zhang, Chao Xu, Howard H. Yang +2
This paper proposes a client selection (CS) method to tackle the communication bottleneck of federated learning (FL) while concurrently coping with FL's data heterogeneity issue. S…
Cooperative Data Collection with Multiple UAVs for Information Freshness in the Internet of Things
Xijun Wang, Mengjie Yi, Juan Liu +3
Maintaining the freshness of information in the Internet of Things (IoT) is a critical yet challenging problem. In this paper, we study cooperative data collection using multiple U…
Understanding the Gain of Deploying IRSs in Large-scale Heterogeneous Cellular Networks
Hu Cheng, Hongguang Sun, Linyi Zhang +3
As the superior improvement on wireless network coverage, spectrum efficiency and energy efficiency, Intelligent reflecting surface (IRS) has received more and more attention. In t…
Coverage Analysis for Cellular-Connected Random 3D Mobile UAVs with Directional Antennas
Hongguang Sun, Chao Ma, Linyi Zhang +4
This letter proposes an analytical framework to evaluate the coverage performance of a cellular-connected unmanned aerial vehicle (UAV) network in which UAV user equipments (UAV-UE…
MDC Enhanced IoT Networks: Network Modeling and Performance Analysis
Hongguang Sun, Yajun Ma, Tony Q. S. Quek +3
As a promising architecture, Mobile Data Collector (MDC) enhanced Internet of Things (IoT) exhibits broad prospects in efficient data collection and data aggregation especially for…
IRS-Assisted RF-powered IoT Networks:System Modeling and Performance Analysis
Hongguang Sun, Zelun Zhao, Hu Cheng +4
Emerged as a promising solution for future wireless communication systems, intelligent reflecting surface (IRS) is capable of reconfiguring the wireless propagation environment by…
Age of Changed Information: Content-Aware Status Updating in the Internet of Things
Xijun Wang, Wenrui Lin, Chao Xu +2
In Internet of Things (IoT), the freshness of status updates is crucial for mission-critical applications. In this regard, it is suggested to quantify the freshness of updates by u…
When to Preprocess? Keeping Information Fresh for Computing Enable Internet of Things
Xijun Wang, Minghao Fang, Chao Xu +4
Age of information (AoI), a notion that measures the information freshness, is an essential performance measure for time-critical applications in Internet of Things (IoT). With the…
Optimal Status Update for Caching Enabled IoT Networks: A Dueling Deep R-Network Approach
Chao Xu, Yiping Xie, Xijun Wang +3
In the Internet of Things (IoT) networks, caching is a promising technique to alleviate energy consumption of sensors by responding to users' data requests with the data packets ca…
Optimizing the Long-Term Average Reward for Continuing MDPs: A Technical Report
Chao Xu, Yiping Xie, Xijun Wang +3
Recently, we have struck the balance between the information freshness, in terms of age of information (AoI), experienced by users and energy consumed by sensors, by appropriately…
Optimizing Age of Information in Random-Access Poisson Networks
Xinghua Sun, Fangming Zhao, Howard H. Yang +3
Timeliness is an emerging requirement for many Internet of Things (IoT) applications. In IoT networks, where a large-number of nodes are distributed, severe interference may incur…
Understanding Age of Information in Large-Scale Wireless Networks
Howard H. Yang, Chao Xu, Xijun Wang +2
The notion of age-of-information (AoI) is investigated in the context of large-scale wireless networks, in which transmitters need to send a sequence of information packets, which…
Performance Analysis for Multi-Antenna Small Cell Networks with Clustered Dynamic TDD
Hongguang Sun, Howard H. Yang, Xijun Wang +2
Small cell networks with dynamic time-division duplex (D-TDD) have emerged as a potential solution to address the asymmetric traffic demands in 5G wireless networks. By allowing th…
Deep Reinforcement Learning for Fresh Data Collection in UAV-assisted IoT Networks
Mengjie Yi, Xijun Wang, Juan Liu +2
Due to the flexibility and low operational cost, dispatching unmanned aerial vehicles (UAVs) to collect information from distributed sensors is expected to be a promising solution…
Average Age of Changed Information in the Internet of Things
Wenrui Lin, Xijun Wang, Chao Xu +2
The freshness of status updates is imperative in mission-critical Internet of things (IoT) applications. Recently, Age of Information (AoI) has been proposed to measure the freshne…
AoI and Energy Consumption Oriented Dynamic Status Updating in Caching Enabled IoT Networks
Chao Xu, Xijun Wang, Howard H. Yang +2
Caching has been regarded as a promising technique to alleviate energy consumption of sensors in Internet of Things (IoT) networks by responding to users' requests with the data pa…
Optimizing Information Freshness in Computing enabled IoT Networks
Chao Xu, Howard H. Yang, Xijun Wang +1
Internet of Things (IoT) has emerged as one of the key features of the next generation wireless networks, where timely delivery of status update packets is essential for many real-…
On Peak Age of Information in Data Preprocessing enabled IoT Networks
Chao Xu, Howard H. Yang, Xijun Wang +1
Internet of Things (IoT) has been emerging as one of the use cases permeating our daily lives in 5th Generation wireless networks, where status update packages are usually required…
Age-Optimal Trajectory Planning for UAV-Assisted Data Collection
Juan Liu, Xijun Wang, Bo Bai +1
Unmanned aerial vehicle (UAV)-aided data collection is a new and promising application in many practical scenarios. In this work, we study the age-optimal trajectory planning probl…
Throughput capacity of two-hop relay MANETs under finite buffers
Jia Liu, Min Sheng, Yang Xu +3
Since the seminal work of Grossglauser and Tse [1], the two-hop relay algorithm and its variants have been attractive for mobile ad hoc networks (MANETs) due to their simplicity an…
Correlations of Interference and Link Successes in Heterogeneous Cellular Networks
Min Sheng, Juan Wen, Jiandong Li +1
In heterogeneous cellular networks (HCNs), the interference received at a user is correlated over time slots since it comes from the same set of randomly located BSs. This results…