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A Joint Admission Control & Resource Management Scheme for Virtualized Radio Access Networks

A virtualization platform is responsible for allocation and/or aggregation of radio resources from different access technologies owned by the Infrastructure Providers (InPs). It is also responsible for the distribution of the total capacity among Virtual Network Operators (VNOs). This distribution should comply with requirements specified in the Service Level Agreements (SLAs) of each VNO. The admission control process ensures adherence to the minimum service level requirements during network operation i.e. users’ arrivals/departures. A joint resource management and admission control methodology is proposed in this paper that achieves optimality with respect to the aggregate system utility. The proposed approach is evaluated by simulating a sequence of scenarios with increasing number of arrivals. The results confirm maximal utilization of the available capacity in the system while all SLAs are satisfied.