A Dynamic Hybrid Service Overlay Network for Service Compositions
نویسندگان
چکیده
This paper presents a dynamic hybrid Service Overlay Network (SON) for service composition for multimedia delivery in mobile networks. The overlay considers the nomadic nature of mobile nodes in the decision for node placement within the overlay as well as the types of services provided and expected Quality of Service (QoS) levels. Dynamic re-organization of the overlay reflects changes in stability and QoS provided by the overlay nodes, thus promoting nodes providing high QoS towards the center and demoting unstable nodes towards the edge of the network. This paper also presents a mechanism to efficiently search for services based on the type of service and the required QoS to meet client’s expectations.
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