Indexing techniques for wireless data broadcast under data clustering and scheduling
Proceedings of the eighth international conference on Information and knowledge management
A generalized air-cache design for efficiently broadcasting on multiple physical channels
Proceedings of the 2001 ACM symposium on Applied computing
A Taxonomy of Indexing Schemes for Parallel Database Systems
Distributed and Parallel Databases
Data on Air: Organization and Access
IEEE Transactions on Knowledge and Data Engineering
Multi-Level Multi-Channel Air Cache Designs for Broadcasting in a Mobile Environment
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
A Taxonomy of Broadcast Indexing Schemes for Multi Channel Data Dissemination in Mobile Databases
AINA '04 Proceedings of the 18th International Conference on Advanced Information Networking and Applications - Volume 2
Global parallel index for multi-processors database systems
Information Sciences: an International Journal
Spatial queries in wireless broadcast systems
Wireless Networks - Special issue: Pervasive computing and communications
An Error-Resilient and Tunable Distributed Indexing Scheme for Wireless Data Broadcast
IEEE Transactions on Knowledge and Data Engineering
Adaptive data dissemination schemes for location-aware mobile services
Journal of Systems and Software - Special issue: Quality software
Efficient index and data allocation for wireless broadcast services
Data & Knowledge Engineering
Research in mobile database query optimization and processing
Mobile Information Systems
Data retrieval for location-dependent queries in a multi-cell wireless environment
Mobile Information Systems
The BikeNet mobile sensing system for cyclist experience mapping
Proceedings of the 5th international conference on Embedded networked sensor systems
Continuous Range Search Query Processing in Mobile Navigation
ICPADS '08 Proceedings of the 2008 14th IEEE International Conference on Parallel and Distributed Systems
Mobile Information Systems
RFID-based human behavior modeling and anomaly detection for elderly care
Mobile Information Systems
Voronoi-based range and continuous range query processing in mobile databases
Journal of Computer and System Sciences
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A participatory mobile sensing system is designed to enable clients to voluntarily collect environmental data using embedded sensors and a mobile device while going about their daily activities. Due to the spatio-temporal nature of the data, and the significant benefits of the data to the general public, it is necessary to employ an efficient and effective query processing model for the mobile clients to access the data that can be visualized via an interactive multimedia interface. This article introduces a unified on-demand and data broadcast model to serve queries in the context of a mobile sensing system. The contributions of this article include the following: (i) it presents a novel data structure and indexing method to support the system; (ii) it provides flexibility for the client to issue query using on-demand or broadcast channel according to the server load and broadcast schedule; (iii) it enables new data access and processing for the mobile client; and (iv) it is designed for a multiple channels/receivers environment in a 4G wireless network. The proposed model uses a holistic query processing approach for the mobile sensing system that offers substantial efficiency and autonomy for mobile clients when retrieving data. The results of the experiments undertaken affirm the effectiveness of its performance.