Context-Aware Service Overlay Network: Concept and Case Study

There have been several efforts to provide service-aware technologies in the networks, such as Service-Oriented Architecture (SOA) and Service Delivery Platform (SDP). These technologies were integrated with Service Overlay Network (SON) infrastructure to support control and delivery of services over multiple network domains. However, SON has the limitations of handling the increasing need of ubiquitous and dynamic environment of users and services. To provide better Quality of Experience (QoE) to users in the ubiquitous and dynamic environment, we advocate the notion of Context-aware SON (CSON) to support context-aware and dynamically adaptive service delivery and control. In this paper, we introduce the concept of CSON, and provide a comprehensive review of the basic ideas by visiting our experiences on designing and developing a prototype for CSON.