OConS Supported on Demand Radio Resource Allocation for Virtual Connectivity

• Published in: Mobile Networks and Management pp. 284 - 297
• Main Authors: Caeiro, Luisa, Cardoso, Filipe D., Correia, Luis M.
• Format: Book Chapter
• Language: English
• Published: Berlin, Heidelberg Springer Berlin Heidelberg 2013
• Series: Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
• Subjects: Heterogeneous Networks; Open Connectivity Services; Radio Resource Management; Resource Allocation; Virtual Networks
• ISBN: 9783642379345; 3642379346
• ISSN: 1867-8211; 1867-822X
• DOI: 10.1007/978-3-642-37935-2_22

With the increase of mobile network utilisation, the virtualisation of wireless resources becomes an important issue in the overall Virtual Networks (VNets) process. In this paper, the On Demand Virtual Network Radio Resource Allocation (OnDemand VRRA) mechanism is proposed to take advantage of the set of shared resources available within a cluster of wireless resources from different Radio Access Technologies (RATs) for wireless virtualisation. Optimising resource utilisation satisfying the VNet contracted capacity is its main objective. Furthermore, the mechanism is modelled according to the Open Connectivity Services (OConS) architecture, in order to demonstrate the advantages of its use within the OConS framework. Simulation results show that the introduction of OnDemand VRRA allows supporting the minimum bandwidth requirement in a wireless cluster, composed of several physical base stations from different RATs. The percentage of operation out of contract (i.e., below the virtual operator’s contracted capacity) for a VNet with guaranteed minimum service is zero for a number of end users in the VNet up to 80% of the total, which is higher than in other circumstances. One also observes that VNets providing guaranteed services can achieve the contracted data rate independently of the number of end users in other VNets.