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2007

Periodic properties of user mobility and access-point popularity

8 years 7 months ago
Periodic properties of user mobility and access-point popularity
Understanding user mobility and its effect on access points (APs) is important in designing location-aware systems and wireless networks. Although various studies of wireless networks have provided useful insights, it is hard to apply them to other situations. Here we present a general methodology for extracting mobility information from wireless network traces, and for classifying mobile users and APs. We used the Fourier transform to reveal important periods and chose the two strongest periods to serve as parameters to a classification system based on Bayes’ theory. Analysis of 1-month traces shows that while a daily pattern is common among both users and APs, a weekly pattern is common only for APs. Analysis of 1-year traces revealed that both user mobility and AP popularity depend on the academic calendar. By plotting the classes of APs on our campus map, we discovered that their periodic behavior depends on their proximity to other APs. Keywords Wireless network Á User mobilit...
Minkyong Kim, David Kotz
Added 27 Dec 2010
Updated 27 Dec 2010
Type Journal
Year 2007
Where PUC
Authors Minkyong Kim, David Kotz
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