The throughput utility function: assessing network impact on mobile services

Authors:
Markus Fiedler;Kurt Tutschku;Stefan Chevul;Lennart Isaksson;Andreas Binzenhöfer
Affiliations:
Dept. of Telecommunication Systems, School of Engineering, Blekinge Institute of Technology, Karlskrona, Sweden;Dept. of Distributed Systems, Institute of Computer Science, University of Würzburg, Würzburg, Germany;Dept. of Telecommunication Systems, School of Engineering, Blekinge Institute of Technology, Karlskrona, Sweden;Dept. of Telecommunication Systems, School of Engineering, Blekinge Institute of Technology, Karlskrona, Sweden;Dept. of Distributed Systems, Institute of Computer Science, University of Würzburg, Würzburg, Germany
Venue:
EURO-NGI'05 Proceedings of the Second international conference on Wireless Systems and Network Architectures in Next Generation Internet
Year:
2005

Citing 3
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Abstract

Based on the need for distributed end-to-end quality management for next-generation mobile Internet services, this paper presents a ready-to-deploy quality assessment concept for the impact of the network on the performance of mobile services. We consider the Throughput Utility Function (TUF) as a special case of the Network Utility Function (NUF). These functions combine the observed network utility at the inlet and the outlet of a mobile network. NUF and TUF capture the damping effect of the network onto user-perceived quality from an end-to-end perspective. As opposed to sometimes hard-to-evaluate QoS parameters such as delay and loss, the NUF is highly intuitive due to its mapping to a simple value between 0 and 100 %, which reflects user perception. We demonstrate the capabilities of the proposed TUF by measurements of application-perceived throughput conducted in a mobile, i.e. GPRS and UMTS network.