Spring-based resource management for end-to-end services in next-generation networks

Development of a service-oriented network is an important topic in next generation network (NGN) researches. Service-oriented networks often require in-transit services or processing for application packets. Thus, besides bandwidth requirement, applications or services must also specify their computing power need. Current QoS specification models, however, focus on single-source type, such as bandwidth or computing power, and cannot be applied in a service-oriented network. This study proposed a spring-based model to specify bandwidth and computing power need of a service, along which a resource allocation mechanism, called “Sbra”, is presented to allocate resources efficiently based on spring-based resource profiles. Simulation results showed that Sbra can efficiently improve the call acceptance rate.