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Scheduling algorithms for input-queued cell switches
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EmNets '05 Proceedings of the 2nd IEEE workshop on Embedded Networked Sensors
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EmNets '05 Proceedings of the 2nd IEEE workshop on Embedded Networked Sensors
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OSDI '06 Proceedings of the 7th USENIX Symposium on Operating Systems Design and Implementation - Volume 7
Flush: a reliable bulk transport protocol for multihop wireless networks
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IEEE Transactions on Mobile Computing
Brimon: a sensor network system for railway bridge monitoring
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CoNEXT '08 Proceedings of the 2008 ACM CoNEXT Conference
Block-switched networks: a new paradigm for wireless transport
NSDI'09 Proceedings of the 6th USENIX symposium on Networked systems design and implementation
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In this article, we consider the goal of achieving high throughput in a wireless sensor network. Our work is set in the context of those wireless sensor network applications which collect and transfer bulk data. We present PIP (Packets in Pipe), a MAC primitive for use by the transport module to achieve high throughput. PIP has a unique set of features: (a) it is a multihop connection-oriented primitive, (b) it is TDMA based, (c) it uses multiple radio channels, and (d) it is centrally controlled. This represents a significant shift from prior MAC protocols for bulk data transfer. PIP has several desirable properties: (a) its throughput degrades only slightly with increasing number of hops, (b) it is robust to variable wireless error rates, (c) it performs well even without any flow control, and (d) requires only small queue sizes to operate well. We substantiate these properties with a prototype implementation of PIP on the Tmote-Sky CC2420-based platform. PIP achieves about eleven times better throughput than the state-of-the-art prior work, over a network depth of 24 hops. We also show that PIP can be interagted with duty cycling, and that PIP can support streaming data from/to flash at little overhead.