A wireless sensor network For structural monitoring
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Vehicle classification in distributed sensor networks
Journal of Parallel and Distributed Computing
A line in the sand: a wireless sensor network for target detection, classification, and tracking
Computer Networks: The International Journal of Computer and Telecommunications Networking - Special issue: Military communications systems and technologies
VigilNet: An integrated sensor network system for energy-efficient surveillance
ACM Transactions on Sensor Networks (TOSN)
Hibernets: energy-efficient sensor networks using analog signal processing
Proceedings of the 9th ACM/IEEE International Conference on Information Processing in Sensor Networks
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In-network processing is recommended for many sensor network applications to reduce communication and improve energy efficiency. However, constraints on memory, speed, and energy currently limit the processing capabilities within a sensor network. By integrating ultra-low-power analog circuitry with sensor nodes, we can reduce the node's power consumption and extend the node's processing capacity. We present a custom analog front-end which performs spectral analysis at a fraction of the power used by a digital counterpart. This front-end has been combined with a TelosB mote to (1) selectively wake up the mote based upon spectral content of the signal, thus increasing battery life without missing interesting events, and to (2) achieve low-power signal analysis using an analog spectral decomposition block, freeing up digital computation resources for higher-level analysis.