Security of Handoff Latency by Prescanning with help of Neighbourgraph

Due to rapid growth in IEEE 802.11 based Wireless Local Area Networks (WLAN), handoff has become a burning issue. A mobile station (MS) requires handoff when it travels out of the coverage area of its current access point (AP) and tries to associate with another AP. But handoff delays provide a seri...

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Bibliographic Details
Published in:International journal of computer applications 2011-01, Vol.27 (1), p.41-46
Main Authors: Sarddar, Debabrata, Chatterjee, Shubhajeet, Mazumder, Pulak, Raha, Arnab, Panigrahi, Karmajyoti, Biswas, Utpal, Naskar, Mrinal Kanti
Format: Article
Language:English
Subjects:
Computer information security
Computer simulation
Delay
Local area networks
Platforms
Scanning
Stations
Wireless communication
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Summary:Due to rapid growth in IEEE 802.11 based Wireless Local Area Networks (WLAN), handoff has become a burning issue. A mobile station (MS) requires handoff when it travels out of the coverage area of its current access point (AP) and tries to associate with another AP. But handoff delays provide a serious barrier for such services to be made available to mobile platforms. Throughout the last few years there has been plenty of research aimed towards reducing the handoff delay incurred in the various levels of wireless communication. In this paper, based on Neighbor Graph Cache (NGC), we introduce a pre-scanning mechanism in which an STA starts scanning before it needs actual handoff. The simulation results show that the proposed method reduces the handoff latency effectively.
ISSN:0975-8887
0975-8887
DOI:10.5120/3264-4407