Abstract
The middleware for location based interactive applications requires scalability in large scale spaces. As the number of users and target services are increased, the server has to process massive spatial queries and event handling requests efficiently. Our middleware components are developed to extend the U-interactive system for large scale environments. The system manages the location information for large number of users and target objects. In addition the system handles events caused by user commands. We developed efficient tuple indexing and query mechanism by composite keys. As a new spatial query, Fan search is invented to provide efficient target selection by distance and angle. We optimized the query processing by efficient node traversing and data-aware interval skipping. The tuple matching process is performed in bounded time up to 100,000 objects. Fan search with C-Cuve has superior performance than Z-Curve in high density nodes in the experiment.
The original version of this chapter was revised: The copyright line was incorrect. This has been corrected. The Erratum to this chapter is available at DOI: 10.1007/978-3-642-01802-2_30
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© 2009 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering
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Shim, G., Park, K.H. (2009). Scalable Interactive Middleware Components for Ubiquitous Fashionable Computers. In: Bonnin, JM., Giannelli, C., Magedanz, T. (eds) MobileWireless Middleware, Operating Systems, and Applications. MOBILWARE 2009. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 7. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-01802-2_11
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DOI: https://doi.org/10.1007/978-3-642-01802-2_11
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