期刊名称：International Journal of Computer and Information Technology
印刷版ISSN：2279-0764
出版年度：2015
卷号：4
期号：3
出版社：International Journal of Computer and Information Technology
摘要：Location-Based Services (LBS) send and receive real time information, which users access via their mobile phones. Enhancing the Quality of Service (QoS) of mobile location based services is a vital research area that requires attention in order to enhance such applications. One such method of improvement is by using a pre-setting process, which simplifies the restoration of data and guarantees an immediate response to user requirements as well as needing less calculations. There are some important requirements (presetting with select valid region, strong data indexing with less storage BQR*-tree, more storage with local servers) that will support roaming mobile users by utilizing more storage and less comp utations. The general aim of this paper is to propose a distributed database architecture with an algorithm based on a presetting process that supports lesser communication costs, while maintaining the quality of service. Ad ditionally, the paper will present an overview about using WiMAX instead of WLAN in moving object and spatial or non-spatial queries
关键词：component; Non-Spatial range queries; Moving ; Objects; Location Base Services; Mobile Computing; R-tree ; structures ; BQR tree
