Lagrangean Relaxation for Service Location in Large-Scale Networks With QoS Constraints

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Executive Summary

Current trends in computing indicate that there is a great potential for service oriented computing and similar technologies, such as Application Oriented Networks (AON), where services are services can relocate to adapt to the conditions of the underlying network. In such environments, providing and consuming services and establishing a relationship between consumers (Users of Services) and producers (Providers of Services) are still challenging and vastly researched aspects. Bearing this in mind, the authors define a Service Location and Planning (SLP) Problem that uniquely matches producers to consumers and accounts for realistic parameters such as, Quality of Service (QoS) constraints of throughput and delay, and network constraints of underlying link layer bandwidth capacities, and cost of meeting consumer requests.

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