A Multi-User Beamforming Scheme for Uplink Wireless LAN

Yi Hsiu Lee, Wen Rong Wu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Multiple-input multiple-output (MIMO) technology has been used in wireless local area network (WLAN) systems to enhance system throughput. Many medium access control (MAC) protocols have been proposed for uplink. However, most of them do not consider the operations in physical layer and are difficult to implement in real-world. In this paper, we propose a simple uplink scheme to solve the problem. The main idea is to conduct beamforming in access point such that it can receive signals from multiple users, simultaneously and asynchronously. The distinct advantage of our scheme is that its MAC protocol is compliant to the standard distributed coordination function (DCF) of IEEE 802.11. Simulations show that the proposed scheme significantly outperforms the existing WLAN system.

Original languageEnglish
Title of host publicationISPACS 2018 - 2018 International Symposium on Intelligent Signal Processing and Communication Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages173-178
Number of pages6
ISBN (Electronic)9781538657713
DOIs
StatePublished - Nov 2018
Event2018 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2018 - Ishigaki Island, Okinawa, Japan
Duration: 27 Nov 201830 Nov 2018

Publication series

NameISPACS 2018 - 2018 International Symposium on Intelligent Signal Processing and Communication Systems

Conference

Conference2018 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2018
CountryJapan
CityIshigaki Island, Okinawa
Period27/11/1830/11/18

Keywords

  • distributed coordination function (DCF)
  • IEEE 802.11
  • multi-user beamforming
  • uplink medium access control (MAC) protocol
  • wireless local area network (WLAN)

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