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IEEESCC
2010
IEEE

Dynamic Composition of Services in Sensor Networks

9 years 2 months ago
Dynamic Composition of Services in Sensor Networks
Abstract—Service modeling and composition is a fundamental method for offering advanced functionality by combining a set of primitive services provided by the system. Unlike in the case of web services for which there is an abundance of reliable resources, in sensor networks, the resources are constrained and communication among nodes is error-prone and unreliable. Such a dynamic environment requires a continuous adaptation of the composition of services. In this paper, we first propose a graph-based model of sensor services that maps to the operational model of sensor networks and is amenable to analysis. Based on this model, we formulate the process of sensor service composition as a cost-optimization problem, which is NP-complete. We then propose two heuristic methods for its solution, the top-down and the bottom-up, and discuss their centralized and distributed implementations. Using simulations, we evaluate their performance. Keywords- Service Composition, Sensor Networks, Serv...
Sahin Cem Geyik, Boleslaw K. Szymanski, Petros Zer
Added 15 Aug 2010
Updated 15 Aug 2010
Type Conference
Year 2010
Where IEEESCC
Authors Sahin Cem Geyik, Boleslaw K. Szymanski, Petros Zerfos, Dinesh Verma
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