Sleepers and workaholics: caching strategies in mobile environments
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
Energy efficient indexing on air
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
Broadcast disks: data management for asymmetric communication environments
SIGMOD '95 Proceedings of the 1995 ACM SIGMOD international conference on Management of data
R-trees: a dynamic index structure for spatial searching
SIGMOD '84 Proceedings of the 1984 ACM SIGMOD international conference on Management of data
A Hybrid Index Technique for Power Efficient Data Broadcast
Distributed and Parallel Databases
Data Management in Location-Dependent Information Services
IEEE Pervasive Computing
Cache Invalidation and Replacement Strategies for Location-Dependent Data in Mobile Environments
IEEE Transactions on Computers
Data on Air: Organization and Access
IEEE Transactions on Knowledge and Data Engineering
Performance Analysis of Location-Dependent Cache Invalidation Schemes for Mobile Environments
IEEE Transactions on Knowledge and Data Engineering
Continuous spatial queries via wireless data broadcast
Proceedings of the 2006 ACM symposium on Applied computing
Broadcast-based spatial queries
Journal of Computer Science and Technology
Research in mobile database query optimization and processing
Mobile Information Systems
An efficient data dissemination scheme for spatial query processing
Journal of Computer Science and Technology
Energy-efficient shortest path query processing on air
Proceedings of the 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Effective low-latency k-nearest neighbor search via wireless data broadcast
DASFAA'06 Proceedings of the 11th international conference on Database Systems for Advanced Applications
Scalable spatial query processing for location-aware mobile services
EUC'05 Proceedings of the 2005 international conference on Embedded and Ubiquitous Computing
Spatial queries in wireless broadcast environments
MobiDE '12 Proceedings of the Eleventh ACM International Workshop on Data Engineering for Wireless and Mobile Access
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Location dependent information services (LDISs) produce answers to queries according to the location of the client issuing the query In LDIS, techniques such as caching, prefetching and broadcasting are effective approaches to reducing the wireless bandwidth requirement and query response time However, the client's mobility may lead to inconsistency problems In this paper, we introduce the broadcast-based LDIS scheme (BBS) for the mobile computing environment In the BBS, broadcasted data items are sorted sequentially based on their location and the server broadcasts the location dependent data (LDD) along with an index segment Then, we present a data prefetching scheme and OBC (Object Boundary Circle), in order to reduce the query response time The performance of the proposed scheme is investigated in relation to various environmental variables, such as the distributions of the data items, the average speed of the clients and the size of the service area.