A proposal of WLAN control scheme using separated channel

Minzhi Huang, Yuji Miyake, Suguru Kameda, Akinori Taira, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi

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

Abstract

In WLAN systems, distributed coordination function (DCF) is used to avoid transmission collision. When an error occurs, the transmitter extends its contention window for the next retransmission to avoid more errors. But this may cause an unfairness problem; in noisy conditions MTs may find it difficult to get transmission opportunities, especially in a heterogeneous network with a large number of WLAN access points (AP). In this paper, a new control scheme with separate control channel for WLAN is proposed. When a receiver detects a transmission error, it replies special signal via the control channel to abort transmission of corrupted data. This way the transmission of corrupted data can be reduced. Thus the it is no longer necessary to change contention window size and all MTs have the same probability to get transmission opportunities. The simulation results show that by using this technique, the average throughput of MTs whose packet error rates (PER) are larger than 0.3 can be at least 2 times compared with conventional scheme.

Original languageEnglish
Title of host publication2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, PIMRC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2194-2198
Number of pages5
ISBN (Electronic)9781479949120
DOIs
Publication statusPublished - 2014 Jun 25
Event2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014 - Washington, United States
Duration: 2014 Sep 22014 Sep 5

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume2014-June

Other

Other2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014
CountryUnited States
CityWashington
Period14/9/214/9/5

Keywords

  • CSMA/CA
  • Contention Window
  • Control Channel
  • WLAN

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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