Performance Analysis
The group studies mathematical modelling and analysis of the traffic and performance of modern ICT systems. The methods are typically based on applied probability, queueing theory, teletraffic theory, scheduling theory, and stochastic optimal control techniques. In addition, event-based simulation and other numerical methods are utilised in the research.
The group was established by Prof. Jorma Virtamo, who also led it until his retirement in 2009. From that on, the group has been led by Dr. Samuli Aalto. It is an internationally recognized research group in the area of queueing and teletraffic theory, as well as the stochastic performance analysis of ICT systems.
Current and recent research topics include:
- Analysis of the performance-energy trade-off in queueing systems under various scheduling disciplines
- Analysis of performance degradation in parallel-server systems
- Analysis of signalling performance for M2M traffic in wireless systems
- Optimal scheduling problem in queueing systems based on the Gittins index approach
- Near-optimal dispatching control of energy-aware parallel service systems based on the Whittle index approach
- Near-optimal opportunistic scheduling control in wireless systems based on the Whittle index approach
- Near-optimal load balancing problem in energy-aware 5G HetNets based on the Whittle index approach
Contact
The research group is led by Dr. Samuli Aalto.
Group members
Latest publications
Whittle index approach to multiserver scheduling with impatient customers and DHR service times
Samuli Aalto
2024
QUEUEING SYSTEMS
Minimizing the mean slowdown in the M/G/1 queue
Samuli Aalto, Ziv Scully
2023
QUEUEING SYSTEMS
Minimizing the mean slowdown in a single-server queue
Samuli Aalto
2022
QUEUEING SYSTEMS
On the Gittins index for multistage jobs
Samuli Aalto, Ziv Scully
2022
QUEUEING SYSTEMS
Near-optimal uplink scheduling for age-energy tradeoff in wireless systems
Pasi Lassila, Samuli Aalto
2021
2021 33th International Teletraffic Congress (ITC-33)
On value functions for FCFS queues with batch arrivals and general cost structures
Esa Hyytiä, Rhonda Righter, Jorma Virtamo, Lauri Viitasaari
2020
Performance Evaluation
Indexability of an opportunistic scheduling problem with partial channel information
Samuli Aalto, Pasi Lassila, Ianire Taboada
2019
Proceedings of the 12th EAI International Conference on Performance Evaluation Methodologies and Tools, VALUETOOLS 2019
Near-optimal dispatching policy for energy-aware server clusters
Samuli Aalto, Pasi Lassila
2019
Performance Evaluation
Whittle index approach to opportunistic scheduling with partial channel information
Samuli Aalto, Pasi Lassila, Ianire Taboada
2019
Performance Evaluation
Performance Degradation in Parallel-Server Systems
Josu Doncel, Samuli Aalto, Urtzi Ayesta
2019
IEEE/ACM Transactions on Networking
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