An improved 802.11 DCF in a hybrid environment

Zong Jhe Wu, Jeng Ji Huang

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

Abstract

Distributed coordination function (DCF) is the main technique of IEEE 802.11, which relies on carrier sense multiple access/collision avoidance (CSMAICA) to reduce collision among stations. In this paper, a scheme is proposed to improve the throughput performance of the DCF in a hybrid environment, where a ready to send (RTS) frame is used when the length of a packet exceeds a threshold. Suppose, e.g., that a RTS frame and a packet are transmifted simultaneously, the result under the legacy DCF is that a collision occurs and both of them fail; the transmission bandwidth is thus wasted. To prevent this, an extra portion is added in front of the packet in the proposed scheme, and its length equals the size of a RTS frame. Clearly, it can prevent the packet from the collision process whenever it experiences a collision with one or multiple RTS frames.

Original languageEnglish
Title of host publication2009 1st International Conference on Ubiquitous and Future Networks, ICUFN 2009
Pages203-207
Number of pages5
DOIs
Publication statusPublished - 2009 Nov 12
Event2009 1st International Conference on Ubiquitous and Future Networks, ICUFN 2009 - Hong Kong, China
Duration: 2009 Jun 72009 Jun 9

Publication series

Name2009 1st International Conference on Ubiquitous and Future Networks, ICUFN 2009

Other

Other2009 1st International Conference on Ubiquitous and Future Networks, ICUFN 2009
CountryChina
CityHong Kong
Period09/6/709/6/9

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Keywords

  • Camera-ready
  • Distributed coordination function (DCF)
  • IEEE 802.11 wireless local area network (WLAN)
  • IEEE format
  • Preparation of papers
  • Two-column format

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Hardware and Architecture

Cite this

Wu, Z. J., & Huang, J. J. (2009). An improved 802.11 DCF in a hybrid environment. In 2009 1st International Conference on Ubiquitous and Future Networks, ICUFN 2009 (pp. 203-207). [5174312] (2009 1st International Conference on Ubiquitous and Future Networks, ICUFN 2009). https://doi.org/10.1109/ICUFN.2009.5174312