Fuzzy queries in multimedia database systems
PODS '98 Proceedings of the seventeenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Directed diffusion: a scalable and robust communication paradigm for sensor networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
System architecture directions for networked sensors
ASPLOS IX Proceedings of the ninth international conference on Architectural support for programming languages and operating systems
Data-centric storage in sensornets
ACM SIGCOMM Computer Communication Review
The design of an acquisitional query processor for sensor networks
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
An efficient R-tree implementation over flash-memory storage systems
GIS '03 Proceedings of the 11th ACM international symposium on Advances in geographic information systems
Approximate Aggregation Techniques for Sensor Databases
ICDE '04 Proceedings of the 20th International Conference on Data Engineering
Compressing historical information in sensor networks
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
A wireless sensor network For structural monitoring
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
ELF: an efficient log-structured flash file system for micro sensor nodes
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
An analysis of a large scale habitat monitoring application
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Hardware design experiences in ZebraNet
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
TAG: a Tiny AGgregation service for Ad-Hoc sensor networks
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
MSS: a multi-level data placement scheme for data survival in wireless sensor networks
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Efficient fine-grained data access control in wireless sensor networks
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
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The advances in wireless communications along with the exponential growth of transistors per integrated circuit lead to a rapid evolution of Wireless Sensor Devices (WSDs), that can be used for monitoring environmental conditions at a high fidelity. Following the current trends, WSDs are soon expected to automatically and continuously collect vast amounts of temporal data. Organizing such information in centralized repositories at all times will be both impractical and expensive. In this paper we discuss the challenges from storing sensor readings In-situ (at the generating sensor). This creates a network of tiny databases as opposed to the prevalent model of a centralized database that collects readings from many sensors. We also discuss some of the inherent problems of such a setting, including the lack of efficient distributed query processing algorithms for handling temporal data and the lack of efficient access methods to locally store and retrieve large amounts of sensor data. The presented solutions are in the context of the RISE (Riverside Sensor) hardware platform, which is a wireless sensor platform we developed for applications that require storing in-situ many MBs of sensor readings.