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Selected Projects
NOBEL - Next Generation Optical Network for Broadband European Leadership
Dynamo IND - Dynamic Optical Networks: Integration of Network Layers and Dimensioning of opto-elektronical Transport Networks
BurstNet - Opto-electronic Burst Switching Networks and Nodes
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Selected Publications
QoS in Optical Burst Switched Networks - A new Performance Analysis of the Assured Horizon Framework
Evaluation of reservation mechanisms for optical burst switching
Optimized Combination of Converter Pools and FDL Buffers for Contention Resolution in Optical Burst Switching
Comparison of Contention Resolution Strategies in OBS Network Scenarios
Performance analysis of the CSMA/CA MAC protocol in the DBORN optical MAN network architecture
Dimensioning of SDH/WDM Multilayer Networks
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Selected Projects
ScaleNET - Scalable, efficient and flexible next generation converged mobile, wireless and fixed access networks
Service Quality and TCP Optimization in Mobile Communication Systems
Resource Management in 802.16e systems
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Selected Publications
Protocol Interference between Up- and Downlink Channels in HSDPA
A simple model for the IP packet service time in UMTS networks
Performance of TCP and HTTP Proxies in UMTS Networks
Impact of GPRS on the signalling of a GSM-based network
Designing Macroscopic Diversity Cellular Systems
User Modelling and Performance Evaluation of Distributed Location Management for Personal Communications Services
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Selected Publications
The Sensitivity of TCP to Sudden Delay Variations in Mobile Networks
A new scheduling mechanism to provide relative differentiation for real-time IP traffic
Evaluation of effective bandwidth schemes for self-similar traffic
A simulation study on traffic aggregation in multi-service networks
A Detailed Experimental Performance Evaluation of TCP over UBR
Traffic Management in an ATM Multi-Service Switch for Workgroups
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Selected Projects
XDomain - Performance evaluation of automotive communication systems and telematics services
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Selected Publications
Modeling and Performance Evaluation of a Manual Logon System for Electronic Fee Collection
Building a hierarchical CAN simulator using an object-oriented environment
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Selected Publications
An object-oriented library for simulation of complex hierarchical systems
IKREmuLib: A Library for Seamless Integration of Simulation and Emulation [an error occurred while processing this directive]
VMSimInt: A Network Simulation Tool Supporting Integration of Arbitrary Kernels and Applications
Reference Scenarios for Transport Networks Research
Results of network planning and performance evaluation studies carried out by different research groups are only comparable if they are based on the same or at least similar network scenarios. Therefore, the MultiTeraNet project partners T-Systems Nova, Marconi ONDATA GmbH and the University of Stuttgart have defined following three different optical transport network reference scenarios.
- a hypothetical German backbone network
- a pan-European network defined in European COST 266 project among other networks and denoted as basic network (BN).
- a US network based on a former NSF network topology which has been used in many studies that have been published over the last couple of years
The reference scenarios are defined in terms of network and traffic parameters. Detailed information on each of the networks including cable length and traffic matrices as well as sample dimensioning results can be found in the appendix.