Intelligent Omni-Surfaces Aided Wireless Communications: Does the Reciprocity Hold?

Shaohua Yue, Shuhao Zeng, Hongliang Zhang, Fenghan Lin, Liang Liu, Boya Di

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)


Intelligent omni-surfaces (IOS) have attracted great attention recently due to its potential to achieve full-dimensional communications by simultaneously reflecting and refracting signals toward both sides of the surface. However, it still remains an open question whether the reciprocity holds between the uplink and downlink channels in the IOS-aided wireless communications. In this work, we first present a physics-compliant IOS-related channel model, based on which the channel reciprocity is investigated. We then demonstrate the angle-dependent electromagnetic response of the IOS element in terms of both incident and departure angles. This serves as the key feature of IOS that drives our analytical results on beam non-reciprocity. Finally, simulation and experimental results are provided to verify our theoretical analyses.

Original languageEnglish
Pages (from-to)8181-8185
Number of pages5
JournalIEEE Transactions on Vehicular Technology
Issue number6
Publication statusPublished - 1 Jun 2023


  • channel and beam reciprocity
  • Intelligent omni-surface
  • wireless communication testbed

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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