Record Details

Scanless Fast Handoff Technique Based on Global Path Cache for WLANs

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Title Scanless Fast Handoff Technique Based on Global Path Cache for WLANs
Names Wanalertlak, Weetit (creator)
Lee, Ben (creator)
Yu, Chansu (creator)
Kim, Myungchul (creator)
Park, Seung-Min (creator)
Kim, Won-Tae (creator)
Date Issued 2013-12 (iso8601)
Note This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Springer and can be found at: http://link.springer.com/journal/11227.
Abstract Wireless LANs (WLANs) have been widely adopted and are more
convenient as they are inter-connected 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 MSs, and provides accurate next-AP 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.
Genre Article
Topic Wireless LANs
Identifier Wanalertlak, W., Lee, B., Yu, C., Kim, M., Park, S. M., & Kim, W. T. (2013). Scanless fast handoff technique based on global Path-Cache for WLANs. Journal of Supercomputing, 66(3), 1320-1349. doi:10.1007/s11227-012-0805-7

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