A Collision Rate-Based Backoff Algorithm for Contention-Based Wireless Networks

Cheng Han Lin, Yu Chin Tsai, Yu Hang Wei, Ce Kuen Shieh

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

1 Citation (Scopus)

Abstract

Following the rapid development of wireless networks, IEEE 802.11 technology has become the most widely used wireless network access technology. The contention channel of the distributed coordination function (DCF) is the default mechanism, which is used to determine the waiting time required before sending data. Once any collision has happened, the contention window expands to prevent future collisions, whereas when data has been successfully transmitted, the contention window shrinks to reduce backoff time. Determination of the increase or decrease of contention windows has become a vital to the transmission performance of networks. Through experimentation with different numbers of stations and different contention window sizes, this study found a collision rate range with superior efficiency, and thus proposed a collision rate-based backoff algorithm (CRBA). The proposed algorithm adjusts the contention window size according to collision rate, achieving enhanced efficiency and a reduced collision rate. According to the analysis of experimental results, the CRBA outperformed other relevant channel contention mechanisms (BEB, EIED, LILD, and ELBA) in terms of throughput, collision rate, and channel utilization rate.

Original languageEnglish
Title of host publication2018 3rd International Conference on Computer and Communication Systems, ICCCS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages109-112
Number of pages4
ISBN (Print)9781538663509
DOIs
Publication statusPublished - 2018 Sep 11
Event3rd International Conference on Computer and Communication Systems, ICCCS 2018 - Nagoya, Japan
Duration: 2018 Apr 272018 Apr 30

Publication series

Name2018 3rd International Conference on Computer and Communication Systems, ICCCS 2018

Other

Other3rd International Conference on Computer and Communication Systems, ICCCS 2018
CountryJapan
CityNagoya
Period18-04-2718-04-30

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Computer Vision and Pattern Recognition
  • Hardware and Architecture
  • Artificial Intelligence

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