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The Journal of Supercomputing
Erschienen in: The Journal of Supercomputing 3/2013

01.12.2013

Scanless fast handoff technique based on global Path-Cache for WLANs

verfasst von: Weetit Wanalertlak, Ben Lee, Chansu Yu, Myungchul Kim, Seung-Min Park, Won-Tae Kim

Erschienen in: The Journal of Supercomputing | Ausgabe 3/2013

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Abstract

Wireless LANs (WLANs) have been widely adopted and are more convenient as they are interconnected as wireless campus networks and wireless mesh networks. However, time-sensitive multimedia applications, which have become more popular, could suffer from long end-to-end latency in WLANs. This is due mainly to handoff delay, which in turn is caused by channel scanning. This paper proposes a technique called Global Path-Cache (GPC) that provides fast handoffs in WLANs. GPC properly captures the dynamic behavior of the network and mobile stations (MSs), and provides accurate next-AP (access point) predictions to minimize the handoff latency. Moreover, the handoff frequencies are treated as time-series data, thus GPC calibrates the prediction models based on short-term and periodic behaviors of mobile users. Our simulation study shows that GPC virtually eliminates the need to scan for APs during handoffs and results in much better overall handoff delay compared to existing methods.
Vorheriger Artikel A subcarrier modulation based optical wireless communication system employing transmission diversity
Nächster Artikel Negotiation strategies considering market, time and behavior functions for resource allocation in computational grid

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Metadaten
Titel
Scanless fast handoff technique based on global Path-Cache for WLANs
verfasst von
Weetit Wanalertlak
Ben Lee
Chansu Yu
Myungchul Kim
Seung-Min Park
Won-Tae Kim
Publikationsdatum
01.12.2013
Verlag
Springer US
Erschienen in
The Journal of Supercomputing / Ausgabe 3/2013
Print ISSN: 0920-8542
Elektronische ISSN: 1573-0484
DOI
https://doi.org/10.1007/s11227-012-0805-7

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