Title :
Dynamic data management for location based services in mobile environments
Author :
Wu, Shiow-Yang ; Wu, Kun-Ta
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Dong Hwa Univ., Hualien, Taiwan
Abstract :
We characterize the dynamic data management problem for location based services (LBS) in mobile environments and devise a cost model for servicing both location independent and location dependent data. The cost analysis leads to a set of dynamic data management strategies that employs judicious caching, proactive server pushing and neighborhood replication to reduce service cost and improve response time under changing user mobility and access patterns. Simulation results suggest that different strategies are effective for different types of data in response to different patterns of movement and information access.
Keywords :
communication complexity; content management; cost-benefit analysis; data handling; dynamic programming; mobile computing; radio access networks; LBS; context sensitive information; cost analysis; cost model; data type; dynamic data management; information access; judicious caching; location based service; location dependent data; location independent data; mobile environment; mobile information service; neighborhood replication; proactive server pushing; response time improvement; service cost reduction; user access pattern; user mobility; Computer science; Costs; Data analysis; Data engineering; Databases; Delay; Engineering management; Environmental management; Mobile computing; Pattern analysis;
Conference_Titel :
Database Engineering and Applications Symposium, 2003. Proceedings. Seventh International
Print_ISBN :
0-7695-1981-4
DOI :
10.1109/IDEAS.2003.1214925
