65 citations · 71 across the 14 of their papers we have counts for
14 papers
Active Sensing-assisted UAV Communications with Jittering: Framework and Performance Analysis
Guangji Chen, Long Shi, Qingqing Wu +2
Providing reliable communication for unmanned aerial vehicles (UAVs) via existing cellular networks is crucial for enabling the rapid growth of the low-altitude economy. However, U…
Active IRS Assisted Joint Uplink and Downlink Communications
Qiaoyan Peng, Qingqing Wu, Guangji Chen +2
In this paper, we investigate an intelligent reflecting surface (IRS) aided wireless communication system, where active IRSs (AIRSs) are deployed to assist communication between a…
Sum Capacity Characterization of Pinching Antennas-assisted Multiple Access Channels
Guangji Chen, Qingqing Wu, Kangda Zhi +2
Pinching antenna system (PASS) has recently shown its promising ability to flexibly reconfigure wireless channels via dynamically adjusting the positions of pinching antennas over…
Intelligent Reflecting Surface Aided MIMO Networks: Distributed or Centralized Architecture?
Guangji Chen, Qingqing Wu, Wen Chen +4
We investigate the capacity of a broadcast channel with a multi-antenna base station (BS) sending independent messages to multiple users, aided by IRSs with N elements. In particul…
Intelligent Reflecting Surface Aided Multi-Tier Hybrid Computing
Yapeng Zhao, Qingqing Wu, Guangji Chen +5
The digital twin edge network (DITEN) aims to integrate mobile edge computing (MEC) and digital twin (DT) to provide real-time system configuration and flexible resource allocation…
Hybrid Active-Passive IRS Assisted Energy-Efficient Wireless Communication
Qiaoyan Peng, Qingqing Wu, Guangji Chen +3
Deploying active reflecting elements at the intelligent reflecting surface (IRS) increases signal amplification capability but incurs higher power consumption. Therefore, it remain…
Static IRS Meets Distributed MIMO: A New Architecture for Dynamic Beamforming
Guangji Chen, Qingqing Wu, Celimuge Wu +3
Intelligent reflecting surface (IRS) has been considered as a revolutionary technology to enhance the wireless communication performance. To cater for multiple mobile users, adjust…
Fundamental Limits of Intelligent Reflecting Surface Aided Multiuser Broadcast Channel
Guangji Chen, Qingqing Wu
Intelligent reflecting surface (IRS) has recently received significant attention in wireless networks owing to its ability to smartly control the wireless propagation through passi…
Delay-aware Multiple Access Design for Intelligent Reflecting Surface Aided Uplink Transmission
Piao Zeng, Guangji Chen, Qingqing Wu +2
In this paper, we develop a hybrid multiple access (MA) protocol for an intelligent reflecting surface (IRS) aided uplink transmission network by incorporating the IRS-aided time-d…
IRS Aided MEC Systems with Binary Offloading: A Unified Framework for Dynamic IRS Beamforming
Guangji Chen, Qingqing Wu
In this paper, we develop a unified dynamic intelligent reflecting surface (IRS) beamforming framework to boost the sum computation rate of an IRS-aided mobile edge computing (MEC)…
Active IRS Aided Multiple Access for Energy-Constrained IoT Systems
Guangji Chen, Qingqing Wu, Chong He +3
We investigate the fundamental multiple access (MA) scheme in an active intelligent reflecting surface (IRS) aided energy-constrained Internet-of-Things (IoT) system, where an acti…
IRS-aided Wireless Powered MEC Systems: TDMA or NOMA for Computation Offloading?
Guangji Chen, Qingqing Wu, Wen Chen +2
An intelligent reflecting surface (IRS)-aided wireless powered mobile edge computing (WP-MEC) system is conceived, where each device's computational task can be divided into two pa…
Throughput Analysis of UAV-assisted CellularNetworks by Matérn Hardcore Point Process
Mengbing Liu, Guangji Chen, Ling Qiu
Unmanned aerial vehicles (UAVs) are expected to coexist with conventional terrestrial cellular networks and become an important component to support high rate transmissions. This p…
Analysis and Optimization of Random Cache in Multi-Antenna HetNets with Interference Nulling
Kangda Zhi, Guangji Chen, Ling Qiu +2
From the perspective of statistical performance, this paper presents a framework for the per-user throughput analysis in random cache based multi-antenna heterogeneous networks (He…