QoS-aware server provisioning for large-scale distributed virtual environments
2010 (English)In: Proceedings - Workshop on Principles of Advanced and Distributed Simulation, PADS, 2010, 23-30 p.Conference paper (Refereed)
Maintaining interactivity is one of the key challenges in distributed virtual environments (DVE) due to the large, heterogeneous Internet latency and the fact that clients in a DVE are usually geographically separated. Previous work in this area have dealt with optimizing interactivity performance given limited server resource. In this paper, we consider a new problem, termed the performance-constrained server provisioning, whose goal is to minimize the resource needed to achieve a predetermined level of Quality of Service (QoS). We identify and formulate two variants of this new problem and show that they are both NP-hard via reductions to the set covering problem. We also propose several computationally efficient approximation algorithms for solving the problem. Via extensive simulation study, we show that the newly proposed algorithms that take into account inter-server dependencies significantly outperform the well-known set covering algorithm for both problem variants.
Place, publisher, year, edition, pages
2010. 23-30 p.
Computationally efficient, Distributed virtual environments, Extensive simulations, Interactivity, Internet latencies, NP-hard, Server resources, Set covering algorithms, Set covering problem, Adaptive filtering, Problem solving, Quality of service, Virtual reality, Approximation algorithms
IdentifiersURN: urn:nbn:se:kth:diva-149386DOI: 10.1109/PADS.2010.5471667ScopusID: 2-s2.0-77954118792ISBN: 978-142447291-8OAI: oai:DiVA.org:kth-149386DiVA: diva2:740124
24th Annual Workshop on Principles of Advanced and Distributed Simulation, PADS 2010, 17 May 2010 through 19 May 2010, Atlanta, GA, United States
QC 201408222014-08-222014-08-212014-08-22Bibliographically approved