Decision Making Framework with Stochastic Dynamicity: A Step Forward Towards SDN

Entrepreneurs, infrastructure providers, service operators and carriers are targeting the service, application and infrastructure unification over an all Internet Protocol (IP) platform while providing access technology convergence. Distinctive business goals and varying service logic in addition to distinctive resource requirements alongside scalability and extensibility over such converged infrastructure has to be addressed. Intra/Inter domain knowledge set over distinctive planes (application, service, control and network/transport) has to be induced, inherited and overridden. A decision-making system supporting dynamicity is required to handle such a platform effectively and efficiently. Multi Criteria Decision Making (MCDM) is used for decision-making framework. Ontology is used to model the structural hierarchy and semantics capturing. Ontology's inability to capture uncertainty is complemented by Bayesian mapping. Software Defined Network Controller (SDNC) on the basis of the proposed framework is developed for multimedia call/request/session routing by using embedded hardware. System exhibits greater throughput with lesser call/session/request dropping probability at the expense of a susceptible delay. Moreover system latency with and without SDNC in provisioning and outsourcing modes are compared and evaluated.