2020 IEEE Wireless Communications and Networking Conference (WCNC) 2020
DOI: 10.1109/wcnc45663.2020.9120632
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Enhancing Cellular Communications for UAVs via Intelligent Reflective Surface

Abstract: Intelligent reflective surfaces (IRSs) capable of reconfiguring their electromagnetic absorption and reflection properties in real-time are offering unprecedented opportunities to enhance wireless communication experience in challenging environments. In this paper, we analyze the potential of IRS in enhancing cellular communications for UAVs, which currently suffers from poor signal strength due to the down-tilt of base station antennas optimized to serve ground users. We consider deployment of IRS on building… Show more

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Cited by 110 publications
(73 citation statements)
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“…In [227], the authors consider the deployment of RISs on the walls of buildings and assume that they can be remotely configured by cellular base stations in order to coherently direct the reflected radio waves towards specific UAVs for increasing the received signal strength. By using standardized ground-to-air channel models, the authors analyze the signal gain at the UAVs, as a function of the height of the UAVs, and the size, altitude, and distance from base station of the RIS.…”
Section: N Aerial Communicationsmentioning
confidence: 99%
“…In [227], the authors consider the deployment of RISs on the walls of buildings and assume that they can be remotely configured by cellular base stations in order to coherently direct the reflected radio waves towards specific UAVs for increasing the received signal strength. By using standardized ground-to-air channel models, the authors analyze the signal gain at the UAVs, as a function of the height of the UAVs, and the size, altitude, and distance from base station of the RIS.…”
Section: N Aerial Communicationsmentioning
confidence: 99%
“…A reinforcement learning approach is proposed in [5] to model the propagation environment to optimize the location and reflection coefficient of UAV-IRS. The authors in [7] analyze the signal gains at UAVs as a function of their heights as well as various IRS parameters. However, there is only one IRS employed in these studies which limits the improvement of system performance.…”
Section: B Motivations and Contributionsmentioning
confidence: 99%
“…To address these challenges, intelligent reflecting surface (IRS) has been recently proposed to bypass obstacles and enhance communications in UAV systems, namely IRS-assisted UAV communications [5]- [7]. According to the IRS-assisted UAV framework, multiple IRSs are deployed in the open air to assist the communication between UAV and users.…”
Section: Introductionmentioning
confidence: 99%
“…Outdoors, the target application would be Smart City. So far, however, only a few works have investigated RIS-assisted outdoor scenarios [22], [23]. The main innovation addressed in these works is the use of unmanned aerial vehicles (UAVs).…”
Section: Prior Work a Review Of Rismentioning
confidence: 99%