Forschungsberichte
- [ 2020 ]
- [ 2016 ]
- [ 2015 ]
- [ 2014 ]
- [ 2013 ]
- [ 2012 ]
- [ 2011 ]
- [ 2010 ]
- [ 2009 ]
- [ 2008 ]
- [ 2007 ]
- [ 2006 ]
- [ 2005 ]
- [ 2004 ]
- [ 2003 ]
- [ 2002 ]
- [ 2001 ]
- [ 2000 ]
- [ 1999 ]
- [ 1998 ]
- [ 1997 ]
- [ 1996 ]
- [ 1995 ]
- [ 1994 ]
- [ 1993 ]
- [ 1992 ]
- [ 1991 ]
- [ 1990 ]
- [ 1989 ]
- [ 1988 ]
- [ 1987 ]
2020[ to top ]
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White Paper on Crowdsourced Network and QoE Measurements – Definitions, Use Cases and Challenges (2020).
2016[ to top ]
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Discrete-Time Analysis: Deriving the Distribution of the Number of Events in an Arbitrarily Distributed Interval (2016).
2015[ to top ]
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A Survey of Cloud Services and Potential Applications of Social Awareness (2015).
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Wikipedia and its Network of Human and Automated Authors from a Social Network Perspective (2015).
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Agile Management of Software Based Networks (2015).
2014[ to top ]
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A Survey on Quality of Experience of HTTP Adaptive Streaming (2014).
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Second Interim Report for the DFG Project FunkOFDMA (2014).
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Best Practices and Recommendations for Crowdsourced QoE - Lessons learned from the Qualinet Task Force Crowdsourcing (2014).
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Crowdsourced Subjective User Study Results on QoE Influence Factors of HTTP Adaptive Streaming (2014).
2013[ to top ]
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Performance Analysis of the Trade-off Between Signalling Load and Power Consumption for Popular Smartphone Apps in 3G Networks (2013).
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Service Quality Definition and Measurement (2013).
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CrowdTesting: A Novel Methodology for Subjective User Studies and QoE Evaluation (2013).
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A Compass Through SDN Networks (2013).
2012[ to top ]
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Signaling Load and Tunnel Management in a 3G Core Network (2012).
2011[ to top ]
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Performance Comparison of Common Server Hardware Virtualization Solutions Regarding the Network Throughput of Virtualized Systems (2011).
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Human Cloud as Emerging Internet Application - Anatomy of the Microworkers Crowdsourcing Platform (2011).
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Transport Protocol Influences on YouTube QoE (2011).
2010[ to top ]
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Global Locator, Local Locator, and Identifier Split (GLI-Split) (2010).
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YoMo: A YouTube Application Comfort Monitoring Tool (2010).
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Applicability of PCN-Based Admission Control (2010).
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A Policy-Based Vertical Handover System (2010).
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Mapping Systems for Loc/ID Split Internet Routing (2010).
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Measurement-based Topology and Performance Investigations of D-A-CH Research Networks (2010).
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Cheat-Detection Mechanisms for Crowdsourcing (2010).
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Optimization models for mesh networks involving max-min fairness (2010).
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PCN-Based Marked Flow Termination (2010).
2009[ to top ]
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Measurement of BitTorrent Swarms and their AS Topologies (2009).
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Pushing the Performance of Biased Neighbor Selection through Biased Unchoking (2009).
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An Analytical Model for the Evaluation of the Information Processing in Multi-Probe Networks (2009).
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Max-Min Fair Throughput in Multi-Gateway Multi-Rate Mesh Networks (2009).
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Influence of Packet Re-ordering on Concurrent Multipath Transmissions for Transport Virtualization (2009).
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Statistic-Based Routing (SBR) (2009).
2008[ to top ]
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Testing the IQX Hypothesis for Exponential Interdependency between QoS and QoE of Voice Codecs iLBC and G.711 (2008).
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Investigation of chunk selection strategies in peer-assisted video-on-demand systems (2008).
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The Case for Network Virtualization: Concurrent Multipath Transmission within Routing Overlays (2008).
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On the Usability of Genetic Algorithms for Wireless Mesh Network Planning and Optimization (2008).
2007[ to top ]
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Performance Evaluation of a Reliable Content Mediation Platform in the Emerging Future Internet (2007).
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Overview of Resilience Mechanisms Based on Multipath Structures (2007).
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A Novel Performance Model for the HSDPA with Adaptive Resource Allocation (2007).
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Robust IP Link Costs for Multilayer Resilience (2007).
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Impact of HSDPA Radio Resource Allocation Schemes on the System Performance of UMTS Networks (2007).
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Impact of Vertical Handovers on Cooperative Content Distribution Systems (2007).
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A New Perspective on the Unfair Channel Access Phenomenon in Wireless Local Area Networks (2007).
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Efficiency of Routing and Resilience Mechanisms in Packet-Switched Networks (2007).
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The Effect of Combining Loop-Free Alternates and Not-Via Addresses in IP Fast Reroute (2007).
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Comparison of Marking Algorithms for PCN-Based Admission Control (2007).
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Peer-to-Peer vs. Client/Server: Reliability and Efficiency of a Content Distribution Service (2007).
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Trends in Network and Service Operation for the Emerging Future Internet (2007).
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Quantification of Quality of Experience for Edge-Based Applications (2007).
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Accuracy and Dynamics of Multi-Stage Load Balancing for Multipath Internet Routing (2007).
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P2P-based Network and Service Operation for the Emerging Future Internet (2007).
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Failure-Specific Self-Protecting Multipaths: Increased Capacity Savings or Overengineering? (2007).
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Performance of Header Compression for VoIP in Wireless LANs (2007).
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Estimating Churn in Structured P2P Networks (2007).
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Improving the Performance and Robustness of Kademlia-based Overlay Networks (2007).
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An Algorithmic Framework for Discrete-Time Flow-Level Simulation of Data Networks (2007).
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Source Traffic Characterization for Thin Client Based Office Applications (2007).
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Mobile P2P Applications in Infrastructure-based Mobile Networks. (2007).
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Relying on Randomness - PlanetLab Experiments with Distributed File-sharing Protocols (2007).
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Impact of Energy Models on Energy Efficient Sensor Network Routing (2007).
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On the Code and Soft Capacity of the UMTS FDD Downlink and the Capacity (2007).
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A Model for Time-Efficient HSDPA Simulations (2007).
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Integer SPM: Intelligent Path Selection for Resilient Networks (2007).
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Optimization of the Self-Protecting Multipath for Deployment in Legacy Networks (2007).
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Source Models for Speech Traffic Revisited (2007).
2006[ to top ]
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UMTS Load Metrics for a Policy-Based Vertical Handover Framework (2006).
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A Novel Approach to Verify End-to-End Connectivity in an Autonomic Way (2006).
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Comparison of Robust Cooperation Strategies for P2P Content Distribution Networks with Multiple Source Download (2006).
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Experience-Based Admission Control with Type-Specific Overbooking (2006).
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Performance of Experience-Based Admission Control in the Presence of Traffic Changes (2006).
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Adaptive Bandwidth Allocation: Impact of Routing and Load Balancing on Tunnel Capacity Requirements (2006).
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Throughput Comparison of Professional JMS Servers (2006).
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Feasible Load Regions for different RRM Strategies for the Enhanced Uplink in UMTS Networks (2006).
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A Self-Organizing Concept for Distributed End-to-End Quality Monitoring (2006).
2005[ to top ]
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On the Stochastic Scalability of Information Sharing Platforms (2005).
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The Throughput Utility Function: Assessing Network Impact on Mobile Services (2005).
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Comparison of Border-to-Border Budget Based Network Admission Control and Capacity Overprovisioning (2005).
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Comparison of Link-by-Link Admission Control and Capacity Overprovisioning (2005).
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Measurement and Analysis of Skype VoIP Traffic in 3G UMTS Systems (2005).
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Time-Discrete Analysis of the Crawling Strategy in an Optimized Mobile P2P Architecture (2005).
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A Scalable Algorithm to Monitor Chord-based P2P Systems at Runtime (2005).
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Towards Efficient Simulation of Large Scale P2P Networks (2005).
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Evaluation of a Pastry-based P2P Overlay for Supporting Vertical Handover (2005).
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Impact of Interferers on the Epidemic Diffusion in Peer-to-Peer File-Sharing Networks (2005).
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Dimensioning of Hardware Components in UMTS Networks with Sectorized NodeBs (2005).
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An O(n log n) Heuristic for the Euclidean Traveling Salesman Problem (2005).
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A P2P-based Framework for Distributed Network Management (2005).
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Supporting Vertical Handover by Using a Pastry Peer-to-Peer Overlay Network (2005).
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The Network Utility Function: A Practicable Concept for Assessing Network Impact on Distributed Services (2005).
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Adaptive Bandwidth Allocation: Concepts and Efficiency for Admission-Controlled Capacity Tunnels (2005).
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Comparison of Crawling Strategies for an Optimized Mobile P2P Architecture (2005).
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Adaptive Bandwidth Allocation: Impact of Traffic Demand Models for Wide Area Networks (2005).
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Using Kademlia for the Configuration of B3G Radio Access Nodes (2005).
2004[ to top ]
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A Framework for Modelling and Solving Discrete Finite Markov Chains (2004).
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Delay Analysis of a Chord-based Peer-to-Peer File-Sharing System (2004).
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An Architecture Concept for Mobile P2P File Sharing Services (2004).
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Mapping of File-Sharing onto Mobile Environments: Enhancement by UMTS (2004).
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Simulative Performance Evaluation of a Mobile Peer-to-Peer File-Sharing System (2004).
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A Semi-Analytic Model of the UMTS Downlink Capacity with WWW Traffic on Dedicated Channels (2004).
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Robustness Analysis of the Wireless LAN MAC Protocols with QoS Support (2004).
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Estimating the Size of a Chord Ring (2004).
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An Analytic Method for Coverage Prediction in the UMTS Radio Network Planning Process (2004).
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An Analytic Model for Deriving the Node-B Transmit Power in Heterogeneous UMTS Networks (2004).
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On the Stability of Chord-based P2P Systems (2004).
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Performance Comparison of Handover Mechanisms in Wireless LAN Networks (2004).
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Network Resilience through Multi-Topology Routing (2004).
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Uplink Blocking Probabilities in Heterogenous WCDMA Networks considering Other-Cell Interference (2004).
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Self-Protecting Multipaths - A Simple and Resource-Efficient Protection Switching Mechanism for MPLS Networks (2004).
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Sensitivity of Backup Capacity Requirements to Traffic Distribution and Resilience Constraints (2004).
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Elastic Token Bucket - A Traffic Characterization for Time-Limited Bursty Traffic (2004).
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Capacity Assignment for NAC Budgets in Resilient Networks (2004).
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Experience Based Admission Control (EBAC) (2004).
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Mapping of File-Sharing onto Mobile Environments: Feasibility and Performance of eDonkey with GPRS (2004).
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Performance of TCP/IP with MEDF Scheduling (2004).
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Improving the Timeliness of Rate Measurements (2004).
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Optimization of End-to-End Protection Switching Mechanisms for MPLS Networks (2004).
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Analytic Modelling of the WCDMA Downlink Capacity in Multi-Service Environments (2004).
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Information Diffusion in eDonkey Filesharing Networks (2004).
2003[ to top ]
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Impact of Resilience Requirements on the Performance of Network Admission Control Methods (2003).
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Impact of Network Topology on the Performance of Network Admission Control Methods (2003).
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Fair Assignment of Efficient Network Admission Control Budgets (2003).
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Impact of Traffic Matrix and Routing on the Performance of Network Admission Control Methods (2003).
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A Performance Evaluation Framework for Network Admission Control Methods (2003).
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An Analytic Approximation of the Uplink Capacity in a UMTS Network with Heterogeneous Traffic (2003).
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MPLS Traffic Engineering in OSPF Networks - A combined Approach (2003).
2002[ to top ]
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Performance Tradeoffs for Header Compression in MPLS Networks (2002).
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CSPF Routed and Traffic-Driven Construction of LSP Hierarchies (2002).
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Diversity Effects on the Soft Handover Gain in UMTS networks (2002).
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An Approximation of Othercell Interference Distributions for UMTS Systems using Fixed-Point Equations (2002).
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MEDF - A Simple Scheduling Algorithm for Two Real-Time Transport Service Classes with Application in the UTRAN (2002).
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Decomposition of Large IP Networks for Routing Optimization (2002).
2001[ to top ]
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A Scalable Protocol Architecture for End-to-End Signaling and Resource Reservation in IP Networks (2001).
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Analytical Characterization of the Soft Handover Gain in UMTS (2001).
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QoS of Internet Access with GPRS (2001).
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Performance Evaluation of Interference and Cell Loading in UMTS Networks (2001).
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Performance Evaluation of the Extensions for Control Message Retransmissions in RSVP (2001).
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A Graph Theoretical Concept for LSP Hierarchies (2001).
2000[ to top ]
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Towards an optimization of the routing parameters for IP networks (2000).
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Source Traffic Modeling of Wireless Applications (2000).
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The Performance of Multiplexing Voice and Circuit Switched Data in UMTS over IP-Networks (2000).
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The Dependence of Internet User Characteristics on Access Speed (2000).
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Fast heuristics for optimal routing in large IP networks (2000).
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Carrying Wireless Traffic over IP Using Realtime Transport Protocol Multiplexing (2000).
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Analysis of the Short Term Impact of Changes in Product Mix (2000).
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Analytic Performance Evaluation of the RED Algorithm for QoS in TCP/IP Networks (2000).
1999[ to top ]
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A Numerical Analysis of the M/D^b/N Queueing System (1999).
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Performance Comparison of Different Class-and-Drop Treatment of Data and Acknowledgements in DiffServ IP Networks (1999).
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Measuring Internet User Traffic Behavior Dependent on Access Speed (1999).
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Using Simulation and Genetic Algorithms to Improve Cluster Tool Performance (1999).
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An Approach for the Identification of Nonlinear, Dynamic Processes with Kalman Filter Trained Recurrent Neural Networks (1999).
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Impact of Clustered Traffic Distributions in CDMA Radio Network Planning (1999).
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Possibilities for QoS in existing Internet Routing Protocols (1999).
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Simulation und Leistungsbewertung von Cluster Tools in der Halbleiterfertigung (1999).
1998[ to top ]
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Adaptive Soft-Handoff Thresholds for CDMA Systems with Spatial Traffic (1998).
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Using Discrete-time Analysis in the Performance Evaluation of Manufacturing Systems (1998).
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The Performance of AAL-2 Carrying CDMA Voice Traffic (1998).
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Models of WWW-Traffic: a Comparison of Pareto and Logarithmic Histogram Models (1998).
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Analysis of the Dynamics of CDMA Reverse Link Power Control (1998).
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Code Division Multiple Access wireless network planning considering clustered spatial customer traffic (1998).
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A Numerical Framework for Solving Discrete Markov Models Applied to the AAL-2 Protocol (1998).
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Discrete-Time Modeling of the Frame-Based Generic Cell Rate Algorithm (1998).
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Effects of Variations in the Available Bandwidth on the Performance of the GFR Service (1998).
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WIP Evolution of a Semiconductor Factory after a Bottleneck Workcenter Breakdown (1998).
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Analysis of the Interdeparture Process of a Batch Service Queueing System (1998).
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Performance of the GFR-Service with Constant Available Bandwidth (1998).
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Einsatz von topologieerhaltenden neuronalen Netzen zur Interpretation von Leiterplattendaten (1998).
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Interdeparture Time Correlations of the Discrete-time GI/GI/1 Queue (1998).
1997[ to top ]
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Demand-based Radio Network Planning of Cellular Communication Systems (1997).
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Carrying CDMA over ATM using AAL-2 - A Performance Study (1997).
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Measurement and Modeling of WWW-Sessions (1997).
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Implementierung und Test neuartiger Zufallszahlengeneratoren (1997).
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The Performance of Base Station Interconnection Alternatives in CDMA networks (1997).
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Approximate Flow Time Distribution of a Queue with Batch Service (1997).
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Spatial Traffic Estimation and Characterization for Mobile Communication Network design (1997).
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Resource-Based Charging of ATM Connections (1997).
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A Decomposition Approach for User-Network Interface Modeling in ATM Networks (1997).
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Analysis of a Queueing Model with Delayed Feedback and its Application to the ABR Flow Control (1997).
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Discrete-time analysis of batch servers with bounded idle time and two job classes (1997).
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On the Spatial Multiplexing Gain of SDMA for Wireless Local Loop Access (1997).
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A Memory Markov Chain Model For VBR Traffic With Strong Positive Correlations (1997).
1996[ to top ]
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Künstliche Neuronale Netze für die Wegeoptimierung in ATG Leiterplattentestern (1996).
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Efficient Call Handling Procedures in Cellular Mobile Networks (1996).
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A numerical analysis of the Geo/D/N queueing system (1996).
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Discrete-time analysis of a finite buffer with VBR MPEG video traffic input (1996).
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Impact of customer clustering on mobile network performance (1996).
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Two-moment analysis of alternative tool models with random breakdowns (1996).
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Estimation of the Hurst parameter of long range dependent time series (1996).
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Performance analysis of link carrying capacity in CDMA systems (1996).
1995[ to top ]
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Autocorrelation of cycle times in semiconductor manufacturing systems (1995).
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On cycle times and interdeparture times in semiconductor manufacturing (1995).
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Steady-State Analysis of the Rate-Based Congestions Control Mechanism for ABR Services in ATM Networks (1995).
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Recurrent multilayer perceptrons for identification and control: The road to applications (1995).
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Simple and efficient models for variable bit rate MPEG video traffic (1995).
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On transfer blocking and minimal blocking in serial manufacturing systems - the impact of buffer allocation (1995).
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A toolkit of octave functions for discrete-time analysis of queueing systems (1995).
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On the approximation of higher moments in open and closed fork/join primitives with limited buffers (1995).
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Discrete-time approximation of the machine repairman model with generally distributed failure, repair, and walking times (1995).
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Reducing the variance of cycle times in semiconductor manufacturing systems (1995).
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Performance modelling of pull manufacturing systems with batch servers and assemly-like structure (1995).
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A new approach for the dimensioning of policing functions for MPEG-video sources in ATM-systems (1995).
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Vergleich zweier Analysemethoden zur Leistungsbewertung von Kanban Systemen (1995).
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Set management: Minimizing synchronization delays of prefabricated parts before assembly (1995).
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Towards a channel allocation scheme for SDMA-based mobile communication systems (1995).
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Moment approximation in product form queueing networks (1995).
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Performance analysis of source policing architectures in ATM systems, COST Technical Document, COST242TD(95)014 (1995).
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Performance analysis of the dual cell spacer in ATM systems, COST Technical Document, COST242TD(95)015 (1995).
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Statistical properties of MPEG video traffic and their impact on traffic modeling in ATM systems (1995).
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Cell loss analysis of broadband switching systems carrying VBR video traffic (1995).
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A note on the application of Marie’s method for queueing networks with batch servers (1995).
1994[ to top ]
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Performance analysis of the dual cell spacer in ATM systems (1994).
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Sojourn time distribution of the asymmetric M/M/1//N-system with LCFS-PR service (1994).
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Delivery of MPEG video services over ATM (1994).
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Entwicklung von due-date Warteschlangendisziplinen zur Optimierung von Produktionssystemen (1994).
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Performance analysis of source policing architectures in ATM systems (1994).
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Using Kanban in a semiconductor fabrication environment - a simulation study (1994).
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Approximate analysis of an ATM multiplexer mith MPEG video input (1994).
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Analysis of the generic cell rate algorithm monitoring on/off-traffic (1994).
1993[ to top ]
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Basic concepts and performance of high-speed protocols (1993).
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Dimensioning of a peak cell rate monitor algorithm using discrete-time analysis (1993).
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A performance comparison of GFC protocol proporals, COST Technical Document, COST242TD(93)011 (1993).
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Discrete-time analysis technique and application to usage parameter control modelling in ATM systems (1993).
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Reducing the variance of sojourn times in queueing networks with overtaking (1993).
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A comparison of models for VBR video traffic sources in B-ISDN (1993).
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Discrete-Time Analysis of a Cyclic Service System with Gated Limited Service (1993).
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A dicrete-time analysis of cell spacing in ATM systems (1993).
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Performance analysis of a batch service system working with a combined push/pull control (1993).
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Dimensioning of a peak cell rate monitor algorithm using discrete-time analysis, COST Technical Document, COST242TD(93)013 (1993).
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Overview on literature dealing with multi-service systems, COST Technical Document, COST242TD(93)022 (1993).
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Multi bit-rate models used in the dimensioning of ATM networks, COST Technical Document, COST242TD(93)041 (1993).
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Analysis of two finite queues coupled by a triggering scheduler (1993).
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A discrete-time analysis of cell spacing in ATM systems, COST Technical Document, COST242TD(93)036 (1993).
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Analysis of machine breakdown models (1993).
1992[ to top ]
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Autocorrelation and power density spectrum of ATM multiplexer output processes, COST Technical Document, COST242TD(92)038 (1992).
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Performance aspects of a GFC protocol proporal, COST Technical Document, COST242TD(92)047 (1992).
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An analysis of multi-service systems with trunk reservation mechanisms, COST Technical Document, COST242TD(92)019 (1992).
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Preliminary performance results of ATMR as generic flow control protocol, COST Technical Document, COST242TD(92)029 (1992).
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Discrete-time analysis of the output process of an ATM multiplexer with periodic input, COST Technical Document, COST242TD(92)001 (1992).
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DQDB subnetwork interconnection: A performance study, COST Technical Document, COST242TD(92)057 (1992).