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Fast Millimeter Wave Assisted Beam-Steering for Passive Indoor Optical Wireless Networks

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


Maria Torres Vega

A. M. J. Koonen

Antonio Liotta

Jeroen Famaey


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 s using state of the art millimeter wave localization, which is already sufficient to support sporadically mobile devices.

Journal Article Type Article
Acceptance Date Nov 6, 2017
Online Publication Date Nov 9, 2017
Publication Date 2018-04
Deposit Date Jul 29, 2019
Print ISSN 2162-2337
Electronic ISSN 2162-2345
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 7
Issue 2
Pages 278-281
Keywords Beam-steering, indoor optical beam-steered networks, millimeter wave communications, RF indoor localization
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