Testing non-stationarity of aggregate WLAN traffic
无线局域网聚集业务流非平稳性检验*

The study of WLAN traffic characteristics is not only important for network performance evaluation, but also imperative for the proper network design, management, and control.This paper employed actual wireless data that draw from well known archives of network traffic traces analysis the preliminary statistics and examined the non-stationarity of aggregate WLAN traffic by employing the unit-root tests. The results indicate that the upstream and downstream traffic are non-stationary at different levels of statistical significance.It also repeated the analysis for the first difference of these series. The findings show that these first difference series are stationary. These results show that aggregate traffic series are non-stationary and also integrated of order one. These provide guidance on modelling of wireless traffic in the future.