K. Begain, M.Ermel, T. Mueller, J. Schueller, M. Schweigel:
"Performance of Internet Traffic over GPRS",
8th IFIP Workshop on Performance and Evaluation of ATM & IP
Networks, Ilkley, UK, July 16-20, 2000
The demand for more packet switched services in wireless networks is
increasing rapidly. The third generation wireless networks will be
based on packet switching and aim to provide high bit rates.
In the meanwhile, the introduction of GPRS services in existing GSM
networks by mobile network providers gives an opportunity of providing
data services at low bit rates. As in xed networks, Internet traffic is
expected to increase dramatically as soon as this service is available.
The impact of this traffic on the traditional voice service and on the
data services is of great interest for network operators.
The goal of this paper is to study the possible implications of the
growth of the amount of Internet traffic on other services in the network.
An analytical call/burst level model of one cell of a homogeneous
multiservice GSM/GPRS network is used to investigate the in uence of
Internet traffic volume and characteristics on important performance measures
like new and handover blocking probabilities, system utilization and
mean data rates of the services. Numerical results show, that by using
efficient call admission and complete sharing of capacity with higher
priority tovoice service, the increase of Internet traffic volume will not
in uence the blocking probability of voice calls, will decrease the
average bit rates of Internet bursts and will increase the utilization of