" QoS of Internet Access with GPRS "

Dirk Staehle, Kenji Leibnitz

Universität Würzburg

Konstantin Tsipotis

Libertel-Vodafone


Abstract:

In this paper we examine the effects of Internet traffic on the quality of service (QoS) in GPRS wireless networks. With a stochastic source traffic model describing the user behavior, we will derive subjective and objective quality of service measures in terms of WWW downloading time and the transmission bandwidths on TCP and TBF level.

Comparing the obtained values with wireline network modems and ISDN yields a slowdown factor which indicates the subjective degradation that the wireless user experiences.