Learn More
In this paper, the application of individual scenario-based traffic models in identifying the traffic carrying needs of networks in patient monitoring environments is presented. Since the total number of traffic sources is small for a central limit theorem-like approximation, a simple traffic matrix for each scenario can be used to identify the capacity(More)
Routing optimization is an important issue of IP traffic engineering. Depending on the routing protocol used in the network, various approaches are possible. In this paper, we discuss the different concepts of IP routing and their implications for routing optimization. Specifically, we focus on destination-based routing protocols that compute routes based(More)
Routing optimization provides network operators with a powerful method for traffic engineering. Its general objective is to distribute traffic flows evenly across available network resources in order to avoid network congestion and quality of service degradation. In this paper we consider routing optimization based on conventional routing protocols where(More)
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)
In this paper we examine bandwidth requirements of videoconferencing systems in corporate networks. Based on extensive measurements with different H.323 applications under various conditions, important statistical traffic properties are determined. In particular, we estimate token bucket parameters and calculate effective bit rates according to the(More)
In this paper, a new genetic algorithm is introduced which is used as a versatile tool for solving different types of optimization problems arising in the field of network planning. The genetic algorithm is applied to the minimum Steiner tree problem which plays an important role in the design of tree-structured passive optical networks in the access area.(More)