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Local Area Networks (LAN) White Papers

Selective Channel Scanning for Fast Handoff in Wireless LAN Using Neighbor Graph

Tags:
local area networks (lan)

Overview Handoff at the link layer 2 (L2) consists of three phases including scanning, authentication, and reassociation. Among the three phases, scanning is dominant in terms of time delay. Thus, this paper proposes an improved scanning mechanism to minimize the disconnected time while a wireless STAtion (STA) changes the associated Access Points (APs). According to IEEE 802.11, an STA has to scan all channels in scanning. In this paper, based on the Neighbor Graph (NG), the paper introduces a selective channel scanning method with unicast for fast handoff in which an STA scans only channels selected by the NG.

Further White Paper Details
Publisher	Korea University	File Format	PDF
Date Published	July 2004
Format	White Papers
Topics	Local Area Networks (LAN), Wireless LAN

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