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Network-wide Consen...
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Al Nahas, Beshr,1985Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Sweden
(författare)
Network-wide Consensus Utilizing the Capture Effect in Low-power Wireless Networks
- Artikel/kapitelEngelska2017
Förlag, utgivningsår, omfång ...
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2017-11-06
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New York, NY, USA :ACM,2017
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electronicrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:research.chalmers.se:c83329ff-e4d7-462d-9f6d-bc1226c5bd16
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ISBN:9781450354592
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https://research.chalmers.se/publication/251160URI
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https://doi.org/10.1145/3131672.3131685DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-32977URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:kon swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
Anmärkningar
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In low-power wireless networking, new applications such as cooperative robots or industrial closed-loop control demand for network-wide agreement at low-latency and high reliability. Distributed consensus protocols is a mature field of research in a wired context, but has received little attention in low-power wireless settings. In this paper, we present A2: Agreement in the Air, a system that brings distributed consensus to low-power multi-hop networks. We introduce Synchrotron, a synchronous transmissions kernel that builds a robust mesh by exploiting the capture effect, frequency hopping with parallel channels, and link-layer security. We build A2 on top of this reliable base layer, and enable the two- and three-phase commit protocols, as well as network services such as joining, hopping sequence distribution and re-keying.We evaluate A2 on four public testbeds with different deployment densities and sizes. A2 requires only 475 ms to complete a two-phase commit over 180 nodes. The resulting duty cycle is 0.5 percent for 1-minute intervals. We show that A2 achieves zero losses end-to-end over long experiments, representing millions of data points.When further adding controlled failures, we show that two-phase commit ensures transaction consistency in A2 while three-phase commit provides liveness at the expense of inconsistency under specific failure scenarios.
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Duquennoy, SimonRISE,SICS,Computer Systems Laboratory(Swepub:ri)simon.duquennoy@ri.se
(författare)
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Landsiedel, Olaf,1979Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Sweden(Swepub:cth)olafl
(författare)
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Chalmers tekniska högskolaChalmers University of Technology, Sweden
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Proceedings of the Conference on Embedded Networked Sensor Systems (ACM SenSys)New York, NY, USA : ACM2017-January:20179781450354592
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Ingår i:Proceedings of the International Conference on Embedded Networked Sensor Systems (ACM SenSys 2017), November 5-8, 2017, Delft, The NetherlandsNew York, NY, USA : ACM2017-January:2017
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