Research area: Networks
The research area focuses on technology, mechanisms and architectures for cost efficient provision of services with differentiated quality of service (QoS) requirements over heterogeneous, partly autonomic and dynamic communication networks. An important foundation for the research is the modeling and quantitative evaluation of such networks. The QoS aspects considered are related to traffic handling and dependability. There are strong collaborations with the Information security research area at ITEM to ensure that the security aspects of QoS are covered, and with the Networked systems research area to link network-layer QoS to end user quality of experience (QoE).
People
The research area has the current staff:
- Adjunct staff: 6
- Post.Doc / Researchers: 2
- PhD students: 26
Research activites
The main research activities at the research area include:
- Focuses on ad hoc networking, targeting QoS for multicast in ad hoc networks. The research has been extended towards wireless sensor networks where the initial focus has been on whether game theory is a suitable tool for defining routing protocols. Another focus is on mobile networks, with special interest in handover issues and techno-economical optimisation of ITS infrastructure. Part of the work has been conducted at Q2S and benefits from the European networks of excellence: Euro-NGI (2003-2006), Euro-FGI (2006-2008) and Euro-NF (2008-2011). The research on mobile networks has close collaboration with the Network Laboratory (NetLab) and SIG-Wireless.
- The focus is on architectures and QoS aspects of optical networks, with special attention to hybrid optical networks. Projects include the Optical packet-switched migration-capable networks with service guarantees (OpMiGua) project, co-funded by the Research Council of Norway, Telenor and NTNU, 2004-2007. Currently, two PhD students and one Post.Doc (Savi) are involved in this activity.
Internet Traffic Theory ⇲ (Jiang)
Internet Traffic Theory ⇱ (Jiang)
The focus is on stochastic network calculus, which is a theory crucial for QoS analysis of networks where applications can tolerate some amount of loss or excess delay and / or the provided services are stochastic in nature. Other projects include “NetControl: Probabilistic Network Calculus Models for Feedback Control”, co-funded by the Research Council of Norway and DAAD, Germany (2008-2009), and the European networks of excellence: Euro-NGI (2003-2006), Euro-FGI (2006-2008) and Euro-NF (2008-2011).- Focuses on techniques for optimizing the quality of delivered service and resource utilization. A novel idea is to use simple mobile agents (ants) swarming in the network to manage resources. This swarm-based technique yields an inherently robust, distributed and autonomous path management. It has also been applied to on-line and efficient deployment of service components, in cooperation with the Networked systems research area. Another focus is on quantifiable dependability and survivability. The considered scenarios include core networks and multi-operator multi-technology wireless environment. Work on survivability is carried out in cooperation with Duke University, USA and within the IST-BISON project (Telenor partner). The work conducted at Q2S benefits from the cooperation within the European networks of excellence: Euro-NGI (2003-2006), Euro-FGI (2006-2008) and Euro-NF (2008-2011), and has on dependability issues in tight cooperation with AGH, VTT and University of Rome II.
Security Assessment ⇲ (Helvik)
Security Assessment ⇱ (Helvik)
The objective is to quantifiably model security services and obtain probabilistic measures for security services in dynamic environments with non-trusted parties. The work is carried out in co-operation the Information security research area. The work within the area has been conducted at Q2S and benefitted from cooperation within the European networks of excellence: Euro-NGI (2003-2006), Euro-FGI (2006-2008) and Euro-NF (2008-2011).- The focus is on assessing QoS related performance through traffic measurement. Topics of special attention include monitoring and controlling Quality of Experience, robust on-line measurement, traffic and service characterization, compound network failure and restoration processes, and network diagnosis and anomaly detection. This area has collaboration with the Information security research area on anomaly detection. National and international projects include the Celtic/NFR R2D2 project, NetControl, and the European networks of excellence: Euro-NGI (2003-2006), Euro-FGI (2006-2008) and Euro-NF (2008-2011).
Tele-economics ⇲ (Øverby)
Tele-economics ⇱ (Øverby)
This area focuses on cost analysis, business modelling, and modelling of telecommunication markets. This is a recent focus activity for the research area. A tenured staff started in August 2010, followed by a Post.Doc (Biczók) in December 2010. Read more...
Projects
The research area is a part of the following projects:
Current
Past
- NetControl: Probabilistic Network Calculus Models for Feedback Control (2008-09), German-Norwegian collaborative research with Technische Universität Darmstadt, co-funded by the Research Council of Norway and DAAD, Germany
- OpMiGua (2004-07)
- EuroNGI/EuroFGI (2003-06/2006-08)
Events
Contact
Please contact the research area coordinator Professor Yuming Jiang.