articleIEEE Wireless Communications LettersDec 21, 2020GREEN OA

Rayleigh Fading Modeling and Channel Hardening for Reconfigurable Intelligent Surfaces

EBEmil BjornsonLSLuca Sanguinetti

KTH Royal Institute of Technology · Linköping University · +1 more institution

Indexed inarxivcrossref

Abstract

A realistic performance assessment of any wireless technology requires the use of a channel model that reflects its main characteristics. The independent and identically distributed Rayleigh fading channel model has been (and still is) the basis of most theoretical research on multiple antenna technologies in scattering environments. This letter shows that such a model is not physically appearing when using a reconfigurable intelligent surface (RIS) with rectangular geometry and provides an alternative physically feasible Rayleigh fading model that can be used as a baseline when evaluating RIS-aided communications. The model is used to revisit the basic RIS properties, e.g., the rank of spatial correlation…

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Authors

2
  • EB
    Emil BjornsonCorresponding

    KTH Royal Institute of Technology, Linköping University

  • LS
    Luca Sanguinetti

    University of Pisa

Topics & keywords

Topics
Keywords
  • Fading
  • Rayleigh fading
  • Channel state information
  • Rayleigh scattering
  • Spatial correlation
  • Wireless
  • Channel (broadcasting)
  • Independent and identically distributed random variables
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