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Reconfigurable Service Composition and Categorization for Power-Aware Mobile Computing

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2 Author(s)
Eunjeong Park ; Sch. of Comput. Sci. & Eng., Seoul Nat. Univ., Seoul ; Heonshik Shin

The requirement of agile adaptation to varying resource constraints in mobile systems motivates the use of a service-oriented architecture (SOA), which can support the composition of two or more services to form a complex service. In this paper, we propose SOA-based middleware to support QoS control of mobile applications and to configure an energy-efficient service composition graph. We categorize services into two layers: functionality-centric services, which are connected to create a complex service to meet the user's intentions, and resource-centric services, which undertake distributed functionality-centric services in a way that increases the success rate of service composition while reducing contention at specific service nodes. We also present a service routing algorithm to balance the resource consumption of service providers on a service-overlay network. Through simulation of power-aware service composition using a realistic model based on ns-2 and traced data, we demonstrate that our approach can help both the mobile devices and the servers in a service-overlay network to reduce energy consumption without an increase in response time.

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Parallel and Distributed Systems, IEEE Transactions on  (Volume:19 ,  Issue: 11 )