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Connected Vehicles in Cellular Networks: Multi-Access Versus Single-Access Performance
RISE, SICS, Germany.
RISE, SICS, Germany.
RISE, SICS, Germany.
Karlstad University, Sweden.
Visa övriga samt affilieringar
2018 (Engelska)Ingår i: TMA 2018 - Proceedings of the 2nd Network Traffic Measurement and Analysis Conference, Institute of Electrical and Electronics Engineers Inc. , 2018Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

Connected vehicles can make roads traffic safer and more efficient, but require the mobile networks to handle time-critical applications. Using the MONROE mobile broadband measurement testbed we conduct a multi-access measurement study on buses. The objective is to understand what network performance connected vehicles can expect in today's mobile networks, in terms of transaction times and availability. The goal is also to understand to what extent access to several operators in parallel can improve communication performance. In our measurement experiments we repeatedly transfer warning messages from moving buses to a stationary server. We triplicate the messages and always perform three transactions in parallel over three different cellular operators. This creates a dataset with which we can compare the operators in an objective way and with which we can study the potential for multi-access. In this paper we use the triple-access dataset to evaluate single-access selection strategies, where one operator is chosen for each transaction. We show that if we have access to three operators and for each transaction choose the operator with best access technology and best signal quality then we can significantly improve availability and transaction times compared to the individual operators. The median transaction time improves with 6% compared to the best single operator and with 61% compared to the worst single operator. The 90-percentile transaction time improves with 23% compared to the best single operator and with 65% compared to the worst single operator.

Ort, förlag, år, upplaga, sidor
Institute of Electrical and Electronics Engineers Inc. , 2018.
Nyckelord [en]
Mobile telecommunication systems, Wireless networks, Access technology, Cellular operators, Communication performance, Connected vehicles, Measurement experiments, Measurement study, Stationary servers, Time-critical applications, Vehicle performance
Nationell ämneskategori
Elektroteknik och elektronik
Identifikatorer
URN: urn:nbn:se:mdh:diva-42264DOI: 10.23919/TMA.2018.8506559ISI: 000454696100027Scopus ID: 2-s2.0-85057241219ISBN: 9783903176096 (tryckt)OAI: oai:DiVA.org:mdh-42264DiVA, id: diva2:1275186
Konferens
2nd Network Traffic Measurement and Analysis Conference, TMA 2018; Vienna; Austria; 26 June 2018 through 29 June 2018; Category numberCFP18K29-ART; Code 141481
Tillgänglig från: 2019-01-04 Skapad: 2019-01-04 Senast uppdaterad: 2019-01-17Bibliografiskt granskad

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