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Implicit Hop-by-Hop Congestion Control in Wireless Multihop Networks

Author(s): Björn Scheuermann, Christian Lochert, Martin Mauve.
Title: Implicit Hop-by-Hop Congestion Control in Wireless Multihop Networks
Published: Elsevier Ad Hoc Networks 6 (2), pp. 260-286, April 2008
Keyword(s): Congestion Control, Wireless Multihop Networks, Shared Medium
Abstract: It has been shown that TCP and TCP-like congestion control are highlyproblematic in wireless multihop networks. In this paper we present anovel hop-by-hop congestion control protocol that has been tailored tothe specific properties of the shared medium. In the proposed scheme,backpressure towards the source node is established implicitly, bypassively observing the medium. A lightweight error detection andcorrection mechanism guarantees a fast reaction to changing mediumconditions and low overhead. Our approach is equally applicable toTCP- and UDP-like data streams. We demonstrate the performanceof our approach by an in-depth simulation study. Thesefindings are underlined by testbed results obtained using animplementation of our protocol on real hardware.
DOI: 10.1016/j.adhoc.2007.01.001
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