Networks and Performance Engineering - Overview

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Research Activities Overview

The PERFORM group pioneers novel cost-effective analytic methodologies for the performance evaluation and optimisation of general Queueing Network Models (QNMs) of heterogeneous networks with finite capacity and thus, blocking, based on the information theoretic principles of maximum entropy and minimum relative entropy, queueing and graph theoretic concepts, discrete-event simulation, advanced numerical methods and batch-renewal processes for modelling and characterising bursty, self-similar and correlated traffic flows. The group is a member of the European (EU) Network of Excellence (NoE) "Euro-NGi" focusing on the design and dimensioning of the next generation Internet and a partner of the EU IST consortium "IASON" concerning with the design and development of performance measurement and validation platforms for heterogeneous networks. Recent/current research activities of the PERFORM group include:

Theoretical investigations into:

• Traffic modelling and engineering.
• Mechanisms for controlled network bandwidth sharing.
• Performance modelling and evaluation of networks.
• Network security, flow & congestion control.
• High-speed and mobile communication networks.
• End-to-end quality-of-service (QoS)
• Routing algorithms and network optimisation.
• Broadcasting & multicasting schemes.
• Software performance engineering.

Applications into:

• IP networking evolution & ad-hoc wireless networks.
• 3G, 4G and beyond mobile cell architectures.
• All optical networks.
• Parallel & distributed systems.