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AUTONOMICS
2007
ACM

End-to-end vs. hop-by-hop transport under intermittent connectivity

13 years 6 months ago
End-to-end vs. hop-by-hop transport under intermittent connectivity
This paper revisits the fundamental trade-off between endto-end and hop-by-hop transport control. The end-to-end principle has been one of the building blocks of the Internet; but in real-world wireless scenarios, end-to-end connectivity is often intermittent, limiting the performance of end-to-end transport protocols. We use a stochastic model that captures both the availability ratio of links and the duration of link disruptions to represent intermittent connectivity. We compare the performance of end-to-end and hop-by-hop transport over an intermittently-connected path. End-toend, perhaps surprisingly, may perform better than hop-byhop transport under long disruption periods. We propose the spaced hop-by-hop policy which is found to dominate (in terms of delivery ratio) the end-to-end policy over the whole parameter range and the basic hop-by-hop policy over most of the relevant range.
Simon Heimlicher, Merkourios Karaliopoulos, Hanoch
Added 12 Aug 2010
Updated 12 Aug 2010
Type Conference
Year 2007
Where AUTONOMICS
Authors Simon Heimlicher, Merkourios Karaliopoulos, Hanoch Levy, Martin May
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