Flush: A reliable bulk transport protocol for multihop wireless networks

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Flush: A reliable bulk transport protocol for multihop wireless networks (2007)

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by Sukun Kim , Rodrigo Fonseca , Prabal Dutta , Arsalan Tavakoli , David Culler , Philip Levis , Scott Shenker , Ion Stoica

Venue:	In submission
Citations:	91 - 11 self

BibTeX

@TECHREPORT{Kim07flush:a,
    author = {Sukun Kim and Rodrigo Fonseca and Prabal Dutta and Arsalan Tavakoli and David Culler and Philip Levis and Scott Shenker and Ion Stoica},
    title = {Flush: A reliable bulk transport protocol for multihop wireless networks},
    institution = {In submission},
    year = {2007}
}

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Abstract

We present Flush, a reliable, high goodput bulk data transport protocol for wireless sensor networks. Flush provides end-to-end reliability, reduces transfer time, and adapts to time-varying network conditions. It achieves these properties using end-to-end acknowledgments, implicit snooping of control information, and a rate-control algorithm that operates at each hop along a flow. Using several real network topologies, we show that Flush closely tracks or exceeds the maximum goodput achievable by a hand-tuned but fixed rate for each hop over a wide range of path lengths and varying network conditions. Flush is scalable; its effective bandwidth over a 48-hop wireless network is approximately one-third of the rate achievable over one hop. The design of Flush is simplified by assuming that different flows do not interfere with each other, a reasonable restriction for many sensornet applications that collect bulk data in a coordinated fashion, like structural health monitoring, volcanic activity monitoring, or protocol evaluation. We collected all of the performance data presented in this paper using Flush itself.

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