The practical success of the future generation mobile systems such as 4G relies largely on its flexibility in providing adaptive and cost-effective services. Service discovery is an essential mechanism to achieve this goal. Based on the investigation of the existing service discovery protocols, this paper proposes a new service discovery methodology for future generation mobile systems: model-based service discovery or MBSD. MBSD takes advantage of the OMG (Object Management Group) MDA (Model-Driven Architecture) technique. The system architecture of MBSD and its operation are presented and implemented. The proposed methodology is validated via a mobile service scenario.
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