Modeling joint usage of random and deterministic channel access in Wi-Fi networks

Alexander Ivanov, Evgeny Khorov, Andrey Lyakhov, Ilya Solomatin

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

2 Scopus citations

Abstract

The ability to provide Quality of Service in Wi-Fi networks to a considerable degree depends on a used channel access method. A number of access methods allow a Wi-Fi station to preliminarily reserve a set of time intervals inside which transmissions are protected from interference. However, fixed parameters assigned to such reservations make them not so flexible as needed for serving Variable Bit Rate (VBR) traffic. On the contrary, random channel access mandatory for Wi-Fi provides such flexibility though at cost of reliability because of collisions and interference. In order to achieve both the reliability and flexibility, we propose a joint access method based on both reservations and random access. In this pioneering work, we study a VBR flow transmission process with the joint method and build its mathematical model. The model can be used to find appropriate parameters of the method which guarantee that QoS requirements of the flow are satisfied while the amount of used channel time is kept as low as possible.1

Original languageEnglish
Title of host publication2016 International Wireless Communications and Mobile Computing Conference, IWCMC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages898-903
Number of pages6
ISBN (Electronic)9781509003044
DOIs
StatePublished - Sep 26 2016
Externally publishedYes
Event12th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2016 - Paphos, Cyprus
Duration: Sep 5 2016Sep 9 2016

Publication series

Name2016 International Wireless Communications and Mobile Computing Conference, IWCMC 2016

Conference

Conference12th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2016
Country/TerritoryCyprus
CityPaphos
Period09/5/1609/9/16

Keywords

  • EDCA
  • HEMM
  • MCCA
  • Mathematical model
  • QoS
  • VBR
  • Wi-Fi

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