SearchLight: Tracking device mobility using indoor luminaries to adapt 60 GHz beams

Muhammad Kumail Haider, Yasaman Ghasempour, Edward W. Knightly

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

We present SearchLight, a system that enables adaptive steering of highly directional 60 GHz beams via passive sensing of visible light from existing illumination sources. The key idea is to simultaneously track a mobile device's position and orientation using intensity measurements from lighting infrastructure, and to adapt client and AP beams to maintain beam alignment, without training overhead or outages in the 60 GHz band. Our implementation on custom dual-band hardware with 2 GHz wide channels and 24- element, electronically steerable phased array antennas shows that SearchLight successfully tracks client mobility and achieves up to 3× throughput gains compared to an in-band training strategy, and eliminates millisecond-scale in-band training epochs.

Original languageEnglish (US)
Title of host publicationMobihoc 2018 - Proceedings of the 2018 19th International Symposium on Mobile Ad Hoc Networking and Computing
PublisherAssociation for Computing Machinery
Pages181-190
Number of pages10
ISBN (Electronic)9781450357708
DOIs
StatePublished - Jun 26 2018
Externally publishedYes
Event19th ACM International Symposium on Mobile Ad-Hoc Networking and Computing, MobiHoc 2018 - Los Angeles, United States
Duration: Jun 26 2018Jun 29 2018

Publication series

NameProceedings of the International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc)

Conference

Conference19th ACM International Symposium on Mobile Ad-Hoc Networking and Computing, MobiHoc 2018
Country/TerritoryUnited States
CityLos Angeles
Period6/26/186/29/18

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Computer Networks and Communications
  • Software

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