5 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…
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…
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…