A distributed spatial index for error-prone wireless data broadcast

A distributed spatial index for error-prone wireless data broadcast Information is valuable to users when it is available not only at the right time but also at the right place . To support efficient location-based data access in wireless data broadcast systems, a distributed spatial index (called DSI) is presented in this paper. DSI is highly efficient because it has a linear yet fully distributed structure that naturally shares links in different search paths. DSI is very resilient to the error-prone wireless communication environment because interrupted search operations based on DSI can be resumed easily. It supports search algorithms for classical location-based queries such as window queries and k NN queries in both of the snapshot and continuous query modes. In-depth analysis and simulation-based evaluation have been conducted. The results show that DSI significantly out-performs a variant of R-trees tailored for wireless data broadcast environments. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The VLDB Journal Springer Journals

A distributed spatial index for error-prone wireless data broadcast

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Copyright © 2009 by Springer-Verlag
Computer Science; Database Management
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