Processing location-dependent queries in a multi-cell wireless enviroment

Authors:
Baihua Zheng;Dik Lun Lee
Affiliations:
Department of Computer Science, HongKong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China;Department of Computer Science, HongKong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
Venue:
Proceedings of the 2nd ACM international workshop on Data engineering for wireless and mobile access
Year:
2001

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Abstract

We develop several methods for scheduling location-dependent queries clients cross cell bounderies in a multi-cell wireless environment. Our study is based on a common scenario where data objects are stationary while clients, which issue the queries, are mobile. For query processing, we use Voronoi Diagrams to construct an index and a semantic cache for improving data reusability. For handoff clients, we propose three scheduling methods, namely, the priority method, the intelligent method, and the hybrid method to improve performance. A simulation is conducted to study the performance of the methods.