Title :
An architecture for location dependent query processing
Author :
Seydim, Ayse Y. ; Dunham, Margaret H. ; Kumar, Vijay
Author_Institution :
Dept. of Comput. Sci. & Eng., Southern Methodist Univ., Dallas, TX, USA
Abstract :
As the mobility of people increases, anytime, anywhere computing has become a must. With the advances in wireless communications, the geographical position of the mobile user can be estimated accurately enough to be used to access data dependent on it. Location awareness then enables new kinds of services specific to localized information. While this provides great flexibility for the end user, it creates many challenges for the content providers and wireless operators. We propose an architecture, location dependent services manager (LDSM), between the mobile user and the service/content providers to service location dependent applications which access location dependent data. The proposed middleware does location translation which we call location leveling, to adjust the location granularities and to solve the location mismatch problem. Quality of query results and the complicated queries involving more than one service provider is also supported in this middleware. We give an overview of the proposed architecture, examine the query processing issues and discuss the future work plans
Keywords :
Internet; mobile computing; query processing; radio access networks; anytime anywhere computing; content providers; location awareness; location dependent data; location dependent query processing; location dependent services manager; location granularities; location leveling; location mismatch problem; location translation; middleware; mobile user; query processing; wireless communications; wireless operators; Application software; Cities and towns; Computer architecture; Computer science; Content management; Databases; Middleware; Mobile radio mobility management; Query processing; Telecommunication computing;
Conference_Titel :
Database and Expert Systems Applications, 2001. Proceedings. 12th International Workshop on
Conference_Location :
Munich
Print_ISBN :
0-7695-1230-5
DOI :
10.1109/DEXA.2001.953117