D-MIMOO - Distributed MIMO for Office Wi-Fi Networks

Neelakantan Nurani Krishnan, Eric Torkildson, Enrico Rantala, Ivan Seskar, Narayan Mandayam, Klaus Doppler

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

2 Scopus citations

Abstract

We present D-MIMOO, a distributed MIMO Wi-Fi architecture that boosts average network throughput compared to state-of-the-art access points with co-located antennas (baseline configuration). Designing a distributed MIMO system invites us to redesign fundamental Wi-Fi concepts, such as carrier sensing multiple access (CSMA) which governs channel access among Wi-Fi access points. We also propose a novel way of using channel reciprocity and the network topology to select downlink MU-MIMO recipients. The proposed solutions are standards compliant, do not require modifications at the user equipment and hence will work with legacy 802.11ac devices. We compare the performance of the D-MIMOO architecture to a baseline dense enterprise Wi-Fi deployment, and observe 2.5× improvement in median and 104% increase in average downlink per-stream throughput.

Original languageEnglish (US)
Title of host publication2018 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538651919
DOIs
StatePublished - Jan 11 2019
Event2018 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2018 - Seoul, Korea, Republic of
Duration: Oct 22 2018Oct 25 2018

Publication series

Name2018 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2018

Conference

Conference2018 IEEE International Symposium on Dynamic Spectrum Access Networks, DySPAN 2018
Country/TerritoryKorea, Republic of
CitySeoul
Period10/22/1810/25/18

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture

Keywords

  • Distributed MIMO
  • MU-MIMO
  • Wi-Fi networks
  • channel access
  • network architecture and performance
  • user selection

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