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10 September 2007 An empirical analysis of aggregate WLAN traffic characteristic
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In this paper, we employ real wireless data that draw from well known archives of network traffic traces and discusses the characteristic of the aggregate WLAN traffic. We test the nonstationary of aggregate WLAN traffic by using the Augmented Dickey-Fuller (ADF) based unit root test. The results show that we cannot reject the unit root for either of all downstream traffic. We also repeat the analysis for the first difference of these series. The findings show that we can strongly reject the unit root. These test reveal that the downstream traffic is nonstationary and integrated of order one. Likewise, the same testing procedure for upstream traffic concluded that some of aggregate upstream traffic series are stationary at the 5% level of significance, and some traffic series are nonstationary at the each level of significance. Our result also showed that aggregate upstream traffic series are also integrated of order one.
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Huifang Feng, Yantai Shu, and Li Yu "An empirical analysis of aggregate WLAN traffic characteristic", Proc. SPIE 6773, Next-Generation Communication and Sensor Networks 2007, 67730D (10 September 2007);

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