Taming the underlying challenges of reliable multihop routing in sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
The case for separating routing from routers
Proceedings of the ACM SIGCOMM workshop on Future directions in network architecture
Versatile low power media access for wireless sensor networks
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
A clean slate 4D approach to network control and management
ACM SIGCOMM Computer Communication Review
Proceedings of the 3rd international conference on Embedded networked sensor systems
A unifying link abstraction for wireless sensor networks
Proceedings of the 3rd international conference on Embedded networked sensor systems
The Tenet architecture for tiered sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
ATPC: adaptive transmission power control for wireless sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
X-MAC: a short preamble MAC protocol for duty-cycled wireless sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
Improving wireless simulation through noise modeling
Proceedings of the 6th international conference on Information processing in sensor networks
Dozer: ultra-low power data gathering in sensor networks
Proceedings of the 6th international conference on Information processing in sensor networks
LUSTER: wireless sensor network for environmental research
Proceedings of the 5th international conference on Embedded networked sensor systems
RCRT: rate-controlled reliable transport for wireless sensor networks
Proceedings of the 5th international conference on Embedded networked sensor systems
An adaptive communication architecture for wireless sensor networks
Proceedings of the 5th international conference on Embedded networked sensor systems
Flush: a reliable bulk transport protocol for multihop wireless networks
Proceedings of the 5th international conference on Embedded networked sensor systems
Murphy loves potatoes: experiences from a pilot sensor network deployment in precision agriculture
IPDPS'06 Proceedings of the 20th international conference on Parallel and distributed processing
Proceedings of the 6th ACM conference on Embedded network sensor systems
Accurate Network-Scale Power Profiling for Sensor Network Simulators
EWSN '09 Proceedings of the 6th European Conference on Wireless Sensor Networks
COOJA/MSPSim: interoperability testing for wireless sensor networks
Proceedings of the 2nd International Conference on Simulation Tools and Techniques
Dynamic data compression in multi-hop wireless networks
Proceedings of the eleventh international joint conference on Measurement and modeling of computer systems
Combining Positioning and Communication Using UWB Transceivers
DCOSS '09 Proceedings of the 5th IEEE International Conference on Distributed Computing in Sensor Systems
Application-informed radio duty-cycling in a re-taskable multi-user sensing system
IPSN '09 Proceedings of the 2009 International Conference on Information Processing in Sensor Networks
Enabling large-scale storage in sensor networks with the Coffee file system
IPSN '09 Proceedings of the 2009 International Conference on Information Processing in Sensor Networks
Poster abstract: Enabling reliable and high-fidelity data center sensing
IPSN '09 Proceedings of the 2009 International Conference on Information Processing in Sensor Networks
Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems
RACNet: a high-fidelity data center sensing network
Proceedings of the 7th ACM Conference on Embedded Networked Sensor Systems
NoSE: efficient maintenance and initialization of wireless sensor networks
SECON'09 Proceedings of the 6th Annual IEEE communications society conference on Sensor, Mesh and Ad Hoc Communications and Networks
Dual wake-up low power listening for duty cycled wireless sensor networks
EURASIP Journal on Wireless Communications and Networking
Wireless sensor networks for soil science
International Journal of Sensor Networks
Using mobile robots to harvest data from sensor fields
IEEE Wireless Communications
RCRT: Rate-controlled reliable transport protocol for wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
IDEA: integrated distributed energy awareness for wireless sensor networks
Proceedings of the 8th international conference on Mobile systems, applications, and services
Quanto: tracking energy in networked embedded systems
OSDI'08 Proceedings of the 8th USENIX conference on Operating systems design and implementation
Putting the software radio on a low-calorie diet
Hotnets-IX Proceedings of the 9th ACM SIGCOMM Workshop on Hot Topics in Networks
Limiting end-to-end delays in long-lasting sensor networks
Proceedings of the 8th ACM international workshop on Mobility management and wireless access
Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems
Interconnecting Smart Objects with IP: The Next Internet
Interconnecting Smart Objects with IP: The Next Internet
K2: a system for campaign deployments of wireless sensor networks
REALWSN'10 Proceedings of the 4th international conference on Real-world wireless sensor networks
StrawMAN: making sudden traffic surges graceful in low-power wireless networks
Proceedings of the 6th Workshop on Hot Topics in Embedded Networked Sensors
Lossy links, low power, high throughput
Proceedings of the 9th ACM Conference on Embedded Networked Sensor Systems
Phoenix: an epidemic approach to time reconstruction
EWSN'10 Proceedings of the 7th European conference on Wireless Sensor Networks
Improving sensornet performance by separating system configuration from system logic
EWSN'10 Proceedings of the 7th European conference on Wireless Sensor Networks
Making sensornet MAC protocols robust against interference
EWSN'10 Proceedings of the 7th European conference on Wireless Sensor Networks
pTunes: runtime parameter adaptation for low-power MAC protocols
Proceedings of the 11th international conference on Information Processing in Sensor Networks
Opportunistic, receiver-initiated data-collection protocol
EWSN'12 Proceedings of the 9th European conference on Wireless Sensor Networks
A-MAC: A versatile and efficient receiver-initiated link layer for low-power wireless
ACM Transactions on Sensor Networks (TOSN)
A game theory distributed approach for energy optimization in WSNs
ACM Transactions on Sensor Networks (TOSN)
Computers and Electronics in Agriculture
CTP: An efficient, robust, and reliable collection tree protocol for wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
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We present Koala, a reliable data retrieval system designed to operate at permille (.1%) duty cycles, essential for long term environmental monitoring networks. Koala achieves these low duty cycles by letting the network's nodes sleep most of the time and reviving them through an efficient wake-up strategy whenever the gateway performs a bulk data download. Unlike other systems which consume energy to maintain consistent network state (\emph{e.g.} routes, sleep schedules, etc.) across the network's nodes, Koala maintains no persistent routing state on the motes. Instead, a basestation calculates the network paths using reachability information collected by the motes. The Flexible Control Protocol (FCP), a protocol we developed, is then used to install this routing information on the network's nodes. This paradigm of operation not only eliminates the overhead of maintaining routing state, but also significantly reduces the complexity of the networking code running on the motes. Results from simulation and an actual implementation on TinyOS 2 indicate that Koala can achieve very low duty cycles under a wide range of download and network sizes.