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A transmission control scheme for media access in sensor networks
Proceedings of the 7th annual international conference on Mobile computing and networking
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Dynamic Load Balancing on Web-Server Systems
IEEE Internet Computing
An evaluation of multi-resolution storage for sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
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ELF: an efficient log-structured flash file system for micro sensor nodes
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Energy aware lossless data compression
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Proceedings of the 3rd international conference on Embedded networked sensor systems
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Proceedings of the 4th international conference on Embedded networked sensor systems
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Proceedings of the 4th international conference on Embedded networked sensor systems
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OSDI '06 Proceedings of the 7th USENIX Symposium on Operating Systems Design and Implementation - Volume 7
EnviroMic: Towards Cooperative Storage and Retrieval in Audio Sensor Networks
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Proceedings of the 5th international conference on Embedded networked sensor systems
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IEEE Pervasive Computing
IPSN'03 Proceedings of the 2nd international conference on Information processing in sensor networks
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Energy-efficient data redistribution in sensor networks
ACM Transactions on Sensor Networks (TOSN)
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This article presents the design, implementation, and evaluation of EnviroMic, a low-cost experimental prototype of a novel distributed acoustic monitoring, storage, and trace retrieval system designed for disconnected operation. Our intended use of acoustic monitoring is to study animal populations in the wild. Since a permanent connection to the outside world is not assumed and due to the relatively large size of audio traces, the system must optimally exploit available resources such as energy and network storage capacity. Towards that end, we design, prototype, and evaluate distributed algorithms for coordinating acoustic recording tasks, reducing redundancy of data stored by nearby sensors, filtering out silence, and balancing storage utilization in the network. For experimentation purposes, we implement EnviroMic on a TinyOS-based platform and systematically evaluate its performance through both indoor testbed experiments and an outdoor deployment. Results demonstrate up to a four-fold improvement in effective storage capacity of the network compared to uncoordinated recording.