Selective hannel scanning for fast handoff in wireless LAN using neighbor graph

Sang Hee Park, Hye Soo Kim, Chun Su Park, Jae Won Kim, Sung Jea Ko

Research output: Chapter in Book/Report/Conference proceedingChapter

28 Citations (Scopus)

Abstract

Handoff at the link layer 2 (L2) consists of three phases: scanning, authentication, and reassociation. Among the three phases, scanning is dominant in terms of time delay. Thus, in this paper, we pro- . pose an improved scanning mechanism to minimize the disconnected time while the wireless station (STA) changes the associated access points (APs). According to IEEE 802.11 standard, the STA has to scan all channels in the scanning phase. In this paper, based on the neighbor graph (NG), we introduce a selective channel scanning method for fast handoff in which the STA scans only channels selected by the NG. Experimental results show that the proposed method reduces the scanning delay drastically.

Original languageEnglish
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
EditorsIgnas Niemegeers, Sonia Heemstra de Groot
PublisherSpringer Verlag
Pages194-203
Number of pages10
ISBN (Print)3540231625, 9783540231622
DOIs
Publication statusPublished - 2004

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3260
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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