Flexible Service Provisioning for Heterogeneous Sensor Networks

This paper presents Servilla, a highly flexible service provisioning framework for heterogeneous wireless sensor networks. Its service-oriented programming model and middleware enable developers to construct platform-independent applications over a dynamic set of devices with diverse computational resources and sensors. A salient feature of Servilla is its support for dynamic discovery and binding to local and remote services, which enables flexible and energy-efficient in-network collaboration among heterogeneous devices. Furthermore, Servilla provides a modular middleware architecture that can be easily tailored for devices with a wide range of resources, allowing even resource-limited devices to provide services and leverage resource-rich devices for in-network processing. Microbenchmarks demonstrate the efficiency of Servilla's middleware, and an application case study for structural health monitoring on a heterogeneous testbed consisting of TelosB and Imote2 nodes demonstrates the efficacy of its programming model. Notes: This paper is replaced by tech report WUCSE-2009-2. Type of Report: Other Department of Computer Science & Engineering Washington University in St. Louis Campus Box 1045 St. Louis, MO 63130 ph: (314) 935-6160 Flexible Service Provisioning for Heterogeneous Sensor Networks Chien-Liang Fok, Gruia-Catalin Roman, and Chenyang Lu Dept. of Computer Science and Engineering Washington University in St. Louis Saint Louis, MO, 63105, USA [liang, roman, lu]@cse.wustl.edu