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This paper addresses the problem of dimensioning IP access networks for elastic traffic, which is carried by the TCP protocol. The M/G/R Processor Sharing model (M/G/R PS) is used as the basis for capacity computations. The model is extended to take into account TCP specific properties, thus, giving more accurate values, especially for increasing round-trip(More)
The planning of a communication network is inevitably depending on the quality of both the planning tool and the demand forecast used. In this article, we show exemplarily how the emerging area of Robust Optimization can advance the network planning by a more accurate mathematical description of the demand uncertainty. After a general introduction of the(More)
Contrary to some announcements, bandwidth will remain a scarce resource in certain sectors such as Internet access via mobile networks. Thus, models for exact dimensioning and optimization of Internet access networks become vital for economy and quality of service. The Internet will soon integrate real-time (stream) and non-real-time (elastic) traffic(More)
The cost eecient design of ATM networks is considered to be a challenging problem due to the heterogenity of services, the statistical muliplexing gain resulting from the resource sharing of variable bitrate (VBR) connections and the possibility of resource separation through virtual paths (VPs). Most proposals in literature are well suited for small(More)