A sensor-based, web service-enabled, emergency medical response system
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PERCOMW '07 Proceedings of the Fifth IEEE International Conference on Pervasive Computing and Communications Workshops
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NGMAST '08 Proceedings of the 2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies
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Wireless Sensor Networks (WSN) consist of thousands of spatially distributed, low cost, low energy, unattended, and resource constrained sensor nodes for environmental monitoring, pollution detections, battle field surveillance etc. A Sensor Web (SW) is a web-based WSN, where a web application works as a gateway between the WSN and Internet. The Web interface is connected to the World Wide Web or huge computing resources and integrates sensor data and networks. Two major SW architectures are Open Geospatial Consortium defined Sensor Web Enablement (SWE) and Microsoft defined SenseMap. On the other hand, SW is used in academic purposes, agriculture, traffic monitoring, disasters monitoring, and smart home etc. There are many other novel applications as well as middleware for SW. Moreover, researchers from different fields give emphasis on different aspects of SW, while combining these two networks: sensor and web. They focus on strategies and technical issues of SW as well the utilization of sensor data by distributing it through the Web. In this paper, we discuss and compare existing SW architectures. We also present several SW applications and classify them with some potential research issues in this field.