Abstract
Currently,the approaches to service composition focus on QoS optimization and don't consider the energy consumption on the composite service.First,this paper proposed the two models of service energy consumption for the two different cases;second,the approach for EAMSC(energy aware multipath service composition) was proposed for workflow-based service composition.In this approach,the optimization of energy consumption in service composition was transferred into the mathematical model.The heuristic multipath service composition algorithm was presented,which is including the two parts: one is to find some feasible paths in terms of the end to end QoS constraints;the other is to allocate the request traffic over the feasible paths in terms of the models of service energy consumption in order to reduce energy consumption.At last,the experimental result shows the approach to energy aware multipath service composition can effectively reduce energy consumption in the composite service while respecting the end-to-end QoS constraints.
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