Intelligent Reflecting Surfaces: Physics, Propagation, and Pathloss Modeling

Intelligent reflecting surfaces can improve the communication between a source and a destination. The surface contains metamaterial that is configured to "reflect" the incident wave from the source towards the destination. Two incompatible pathloss models have been used in prior work. In t...

Full description

Saved in:
Bibliographic Details
Published in:IEEE wireless communications letters 2020-05, Vol.9 (5), p.581-585
Main Authors: Ozdogan, Ozgecan, Bjornson, Emil, Larsson, Erik G.
Format: Article
Language:English
Subjects:
Far fields
Incident waves
Intelligent reflecting surface
Metamaterials
Optical surface waves
pathloss model
Physical optics
Receivers
Reconfigurable intelligent surfaces
Rough surfaces
Surface impedance
Surface roughness
Surface waves
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Intelligent reflecting surfaces can improve the communication between a source and a destination. The surface contains metamaterial that is configured to "reflect" the incident wave from the source towards the destination. Two incompatible pathloss models have been used in prior work. In this letter, we derive the far-field pathloss using physical optics techniques and explain why the surface consists of many elements that individually act as diffuse scatterers but can jointly beamform the signal in a desired direction with a certain beamwidth. We disprove one of the previously conjectured pathloss models.
ISSN:2162-2337
2162-2345
2162-2345
DOI:10.1109/LWC.2019.2960779