期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2016
卷号：7
期号：2
页码：816-819
出版社：TechScience Publications
摘要：The mobile applications are getting popularnowadays and the applications which are using locationbased service have attracted attention of researchers. Theseapplications use geographical position of a mobile device.Mobile advertising is one of these types of applicationsthat allows an advertiser to promote products or services totargeted customer efficiently. In the proposed application,the mobile client enables the application to get offers orcoupons from nearby merchants on mobile device andreceives the offers. This application is using the continuousmonitoring of moving range queries over static data objects,i.e. a scenario where the queries are constantly movingwhereas the data objects do not change t heir locations. Adistance based circular range query returns the objects thatlie within the radius of the query location. It is using theconcept of safe zone to compute the results. The safe zone of aquery is the area in which the results of the query remainunchanged, while the query remains inside it. Hence, thequery does not need to be reevaluated unless it leaves the safezone. It reduces the cost of query evaluation as well as of datatransfer.
关键词：Continuous range queries; guard objects; mobile;advertising; safe zone; location based services
