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| Authors: | Simon Heimlicher, Merkourios Karaliopoulos, Hanoch Levy, Martin May |
| Group: | Communication Systems |
| Type: | Inproceedings |
| Title: | End-to-end vs. Hop-by-hop Transport under Intermittent Connectivity |
| Year: | 2007 |
| Month: | October |
| Pub-Key: | heimlicher2007c |
| Book Titel: | Autonomics 2007 |
| Keywords: | hop-by-hop, end-to-end, transport, protocol, retransmission, intermittent, connectivity, ICN, mobile, wireless |
| Publisher: | ICST |
| Abstract: | This paper revisits the fundamental trade-off between end-to-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-to-end, perhaps surprisingly, may perform better than hop-by-hop 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. |
| Location: | Rome, Italy |
| Resources: | [BibTeX] [Paper as PDF] |
