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A Handoff Improvement Method for AP Choose Guarantee Network Performance of Mobile Node in Wireless LAN Systems.

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2010, 15(3), pp.55-63
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science

김동근 1 KimSangBok 1

1경상대학교

Accredited

ABSTRACT

On Handoff, existing AP search has chosen one of various APs according to signal strength. However IEEE 802.11 uses Medium Access method with CSMA/CA(Carrier Sensing Multiple Access /Collision Avoidance) that competes to obtain a channel by sharing common medium. For that reason, network performance is heavily affected by the number of nodes and network congestion aside from signal strength. Consequently, in this paper we propose the method that choose one AP which ensures more improved network performance and set up a link, reflecting AP network information in Handoff area, on Handoff in the process of AP selection. We also demonstrate through simulation that it gets maximum performance even in the wireless network which many users concurrently access to, and it has considerable effects on aspects of resources and network management by distribution of users.

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