Fast millimeter wave assisted beam-steering for passive indoor optical wireless networks

Maria Torres Vega, A. M.J. Koonen, Antonio Liotta, Jeroen Famaey

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)


In light of the extreme radio congestion, the time has come to consider the upper parts of the electromagnetic spectrum. Optical beam-steered wireless communications offer great potential for future indoor short-range connectivity, due to virtually unlimited available bandwidth and lack of interference. However, such networks require fast automatic beam-steering solutions. In this letter, we propose a novel optical beam-steering approach that exploits coarse grained millimeter wave localization to significantly reduce optical beam-steering time. We formulate it as a search problem that is NP-Hard to solve optimally. Moreover, we present the MMW-OBS heuristic that efficiently solves it in real-time. Results show that MMW-OBS provides total steering times below 1 second using state of the art millimeter wave localization, which is already sufficient to support sporadically mobile devices.

Original languageEnglish
Pages (from-to)278 - 281
Number of pages4
JournalIEEE Wireless Communications Letters
Issue number2
Publication statusPublished - Apr 2018


  • Beam-steering
  • indoor optical beam-steered networks
  • millimeter wave communications
  • RF indoor localization.


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