Network resource brokerage by means of distributed agent-based systems encompassing reinforcement learning schemes

Authors:
M. Saltouros;A. Taskaris;P. Demestichas;M. Theologou;A. Vasilakos
Affiliations:
Telecommunication Laboratory, Department of Electrical and Computer Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zographou, GR-157 73 Athens, Greece and Depa ...;Telecommunication Laboratory, Department of Electrical and Computer Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zographou, GR-157 73 Athens, Greece;Telecommunication Laboratory, Department of Electrical and Computer Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zographou, GR-157 73 Athens, Greece;Telecommunication Laboratory, Department of Electrical and Computer Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zographou, GR-157 73 Athens, Greece;Hellenic Aerospace Industry S.A., P.O. Box 23, GR-32009, Schimatari, Greece
Venue:
Computer Communications
Year:
2002

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Abstract

The success of a network provider in a competitive communications market depends on the cost-effective provision of the appropriate QoS levels, and the ability to promote the network infrastructure, using dynamic attracting service providers. Advanced management tools encompassing the appropriate intelligence are enabling concepts in this direction. The aim of this paper is to present a part of a Network and Service Management System that acts as a distributed Bandwidth Brokerage System (BBS) over an Internet segment. Aspects addressed are the overall role of the BBS, its functional decoupling, the component deployment pattern in complex (hierarchical) network structures, and the computational intelligence encompassed in the components. The BBS components' logic, which is based on the Stochastic Estimator Learning Algorithm (SELA) concept, solves a version of the hierarchical routing and bandwidth management problem. Mathematical descriptions of the SELA concept and the corresponding routing and bandwidth management schemes are provided. Finally, the paper provides results on the efficiency of the BBS in managing network segments of commercial size and connectivity degree.