Distributed and Parallel Databases - Special issue: Research topics in distributed and parallel databases
NiagaraCQ: a scalable continuous query system for Internet databases
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
A foundation for representing and querying moving objects
ACM Transactions on Database Systems (TODS)
Cache Invalidation and Replacement Strategies for Location-Dependent Data in Mobile Environments
IEEE Transactions on Computers
Scheduling Transactions with Temporal Constraints: Exploiting Data Semantics
IEEE Transactions on Knowledge and Data Engineering
Modeling and Querying Moving Objects
ICDE '97 Proceedings of the Thirteenth International Conference on Data Engineering
Scheduling Real-time Transactions: a Performance Evaluation
VLDB '88 Proceedings of the 14th International Conference on Very Large Data Bases
Query Optimization in a Heterogeneous DBMS
VLDB '92 Proceedings of the 18th International Conference on Very Large Data Bases
Querying in Highly Mobile Distributed Environments
VLDB '92 Proceedings of the 18th International Conference on Very Large Data Bases
Multi-Join Optimization for Symmetric Multiprocessors
VLDB '93 Proceedings of the 19th International Conference on Very Large Data Bases
An Architecture for Location Dependent Query Processing
DEXA '01 Proceedings of the 12th International Workshop on Database and Expert Systems Applications
A Location Dependent Benchmark with Mobility Behavior
IDEAS '02 Proceedings of the 2002 International Symposium on Database Engineering & Applications
Real-Time Transaction Management in Mobile Computing Systems
DASFAA '99 Proceedings of the Sixth International Conference on Database Systems for Advanced Applications
Modeling Moving Objects for Location Based Services
IMWS '01 Revised Papers from the NSF Workshop on Developing an Infrastructure for Mobile and Wireless Systems
Location-based spatial queries
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Soft Real-Time Transactions Scheduling in a Wireless Environment
ISORC '01 Proceedings of the Fourth International Symposium on Object-Oriented Real-Time Distributed Computing
Managing uncertainty in moving objects databases
ACM Transactions on Database Systems (TODS)
Real-Time Databases and Data Services
Real-Time Systems
On semantic caching and query scheduling for mobile nearest-neighbor search
Wireless Networks - Special issue: Pervasive computing and communications
Query Processing in Mobile Environments: A Survey and Open Problems
DFMA '05 Proceedings of the First International Conference on Distributed Frameworks for Multimedia Applications
Context-aware optimization of continuous range queries maintenance for trajectories
Proceedings of the 4th ACM international workshop on Data engineering for wireless and mobile access
A Deferrable Scheduling Algorithm for Real-Time Transactions Maintaining Data Freshness
RTSS '05 Proceedings of the 26th IEEE International Real-Time Systems Symposium
Location-Dependent Queries in Mobile Contexts: Distributed Processing Using Mobile Agents
IEEE Transactions on Mobile Computing
OmniCon: a Mobile IP-based vertical handoff system for wireless LAN and GPRS links
Software—Practice & Experience
Performance of distributed optimistic concurrency control in real-time databases
CIT'04 Proceedings of the 7th international conference on Intelligent Information Technology
Voronoi-based range and continuous range query processing in mobile databases
Journal of Computer and System Sciences
Mobile Information Systems
Event sharing in vehicular networks using geographic vectors and maps
Mobile Information Systems
Optimized skyline queries on road networks using nearest neighbors
Personal and Ubiquitous Computing
Multi-criteria optimization in GIS: continuous k-nearest neighbor search in mobile navigation
ICCSA'10 Proceedings of the 2010 international conference on Computational Science and Its Applications - Volume Part I
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In recent years, mobile devices and applications achieved an increasing development. In database field, this development required methods to consider new query types like location-dependent queries (i.e. the query results depend on the query issuer location). Although several researches addressed problems related to location-dependent query processing, a few works considered timing requirements that may be associated with queries (i.e., the query results must be delivered to mobile clients on time). The main objective of this paper is to propose a solution for location-dependent query processing under soft real-time constraints. Hence, we propose methods to take into account client location-dependency and to maximize the percentage of queries respecting their deadlines. We validate our proposal by implementing a prototype based on Oracle DBMS. Performance evaluation results show that the proposed solution optimizes the percentage of queries meeting their deadlines and the communication cost.