A passive measurement tool for monitoring wireless packet network performances

Benetazzo L.;Narduzzi C.;PEGORARO, PAOLO ATTILIO;Tittoto R.

2004-01-01

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Abstract

Continuous monitoring of performances becomes necessary to detect critical situations in the radio interface of digital wireless telephone networks. This paper presents a measurement tool that analyzes TCP-level packet traffic and detects the effects of variations in the radio channel conditions of a mobile network. The analysis algorithm considers the energies of wavelet coefficients of the aggregated traffic process at a suitably selected number of time scales. Wavelet energy variations are detected by a statistical test from which a score is calculated. This indicator reveals changes in the performances of the monitored network.