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

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91 - 11 self

BibTeX

@MISC{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},
    year = {2007}
}

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Abstract

We present Flush, a reliable, high goodput bulk data trans-port 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.

Keyphrases

multihop wireless network reliable bulk transport protocol end-to-end reliability volcanic activity monitoring fixed rate maximum goodput wide range implicit snooping control information different flow end-to-end acknowledgment rate-control algorithm performance data present flush reasonable restriction path length protocol evaluation many sensornet ap-plications time-varying network condition bulk data effective bandwidth wireless sensor network coordinated fashion structural health monitoring 48-hop wireless network several real network topology network condition

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