Coordination of autonomic functionalities in communications networks
2013 (English)In: 2013 11th International Symposium and Workshops on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, WiOpt 2013, New York: IEEE , 2013, 364-371 p.Conference paper (Refereed)
Future communication networks are expected to feature autonomic (or self-organizing) mechanisms to ease deployment, tune parameters automatically and repair the network. Self-organizing mechanisms are designed as stand-alone entities, even though multiple mechanisms run in parallel in operational networks. An efficient coordination mechanism will be the major enabler for large scale deployment of self-organizing networks. We model self-organizing mechanisms as control loops, and study the conditions for stability when running control loops in parallel. Based on control theory, we propose a distributed coordination mechanism to stabilize the system. In certain cases, coordination can be achieved without any exchange of information between control loops. The mechanism remains valid in the presence of noise via stochastic approximation. Instability and coordination in the context of wireless networks are illustrated with two examples. We are essentially concerned with linear systems, and the applicability of our results for non-linear systems is discussed.
Place, publisher, year, edition, pages
New York: IEEE , 2013. 364-371 p.
Coordination, Dynamical Systems, Self-configuration, Self-Optimization, Self-Organization, Self-Organizing Networks, Stability, Stochastic approximation, Self configuration, Self organizations, Self-organizing network, Stochastic approximations, Approximation theory, Convergence of numerical methods, Linear systems, Optimization, Repair, Telecommunication networks, Wireless networks, Closed loop control systems
IdentifiersURN: urn:nbn:se:kth:diva-133798ISI: 000328130600051ScopusID: 2-s2.0-84883186188ISBN: 978-390188254-8OAI: oai:DiVA.org:kth-133798DiVA: diva2:676761
2013 11th International Symposium and Workshops on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, WiOpt 2013; Tsukuba Science City, Japan, 13-17 May 2013
QC 201312062013-12-062013-11-112014-01-15Bibliographically approved