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An Approach for Precise, Scalable, and Platform Independent Clock Synchronization
KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre.ORCID-id: 0000-0002-5694-0224
2017 (Engelska)Ingår i: 2017 14th IEEE Annual Consumer Communications and Networking Conference, CCNC 2017, IEEE, 2017, s. 461-466, artikel-id 7983152Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Clock synchronization is an important issue in wired and wireless networks as a common time basis is essential for coordinated activities of nodes in distributed systems. Typical applications demanding precise synchronization are Industrial Internet scenarios having real-time constraints, Wireless Sensor Networks (WSNs) where the nodes communicate only for a short period and can sleep the remaining time to save energy, approaches based on Time Division Multiple Access (TDMA), and distributed measurements. The basic idea of our approach is to estimate all delays in a network. As a result, we can estimate the one-way delay between a reference node and all other nodes in the network. Consequently, we can use broadcast messages to synchronize the entire network. Utilizing a novel measurement method and a Java prototype implementation, we show that our approach achieves a high precision (approximate to 123 mu s). Furthermore, it is highly scalable and platform independent. As our synchronization approach operates at the application layer, it is suitable for both wired and wireless networks.

Ort, förlag, år, upplaga, sidor
IEEE, 2017. s. 461-466, artikel-id 7983152
Serie
IEEE Consumer Communications and Networking Conference, ISSN 2331-9852
Nyckelord [en]
Synchronization, Internet of Things, Industrial Internet, Quality of Service, Network Latency
Nationell ämneskategori
Kommunikationssystem
Identifikatorer
URN: urn:nbn:se:kth:diva-217077DOI: 10.1109/CCNC.2017.7983152ISI: 000412117100101Scopus ID: 2-s2.0-85027403105ISBN: 978-1-5090-6196-9 (tryckt)OAI: oai:DiVA.org:kth-217077DiVA, id: diva2:1159014
Konferens
14th IEEE Annual Consumer Communications and Networking Conference, CCNC 2017, Las Vegas, United States, 8 January 2017 through 11 January 2017
Anmärkning

QC 20171121

Tillgänglig från: 2017-11-21 Skapad: 2017-11-21 Senast uppdaterad: 2018-03-07Bibliografiskt granskad

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Danielis, Peter

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