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Examining TCP Short Flow Performance in Cellular Networks Through Active and Passive Measurements
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013). (DISCO)ORCID-id: 0000-0003-3461-7079
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013). (DISCO)ORCID-id: 0000-0003-0368-9221
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013). (DISCO)ORCID-id: 0000-0001-7311-9334
2015 (Engelska)Ingår i: AllThingsCellular '15 Proceedings of the 5th Workshop on All Things Cellular: Operations, Applications and Challenges / [ed] David Choffnes and Kobus Van der Merwe, Association for Computing Machinery (ACM), 2015, s. 7-12Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

In this study we examine the conditions in a current cellular network by examining data passively collected in the core of a cellular operator during a 24-hour period. More than 2 billion traffic measurement data points from over 500,000 cellular users are analyzed. The analysis characterizes the Time-of-Day (ToD) variations for traffic intensity and session length and serves as a complement to the active measurements also performed. A comprehensive active measurement campaign was completed in the HSDPA+ and LTE networks of the four major Swedish operators. We collect around 50,000 data points from stationary cellular modems and analyze the ToD variation pattern for underlying network layer metrics such as delay and throughput. In conjunction with the time-varying session size distribution obtained from the passive measurements, we then analyze the ToD impact on TCP flows of varying sizes. The ToD effects are examined using time series analysis with Lomb-Scargle periodograms and differential Bayesian Information Criterion to allow comparison of the relative impact of the network ToD effects. The results show that ToD effects are predominantly impacting longer-running flows, and although short flows are also impacted they are mostly constrained by other issues such as protocol efficiency.

Ort, förlag, år, upplaga, sidor
Association for Computing Machinery (ACM), 2015. s. 7-12
Nyckelord [en]
Cellular networks, TCP, Performance measurements
Nationell ämneskategori
Telekommunikation Kommunikationssystem Datavetenskap (datalogi)
Forskningsämne
Datavetenskap
Identifikatorer
URN: urn:nbn:se:kau:diva-37755DOI: 10.1145/2785971.2785974ISBN: 978-1-4503-3538-6 (tryckt)OAI: oai:DiVA.org:kau-37755DiVA, id: diva2:848407
Konferens
ACM SIGCOMM 2015 Conference, London, United Kingdom, August 17-21, 2015
Projekt
HITSIFv2014-0135
Forskningsfinansiär
KK-stiftelsen, 20140037.SE (Stiftelsen för internetinfrastruktur), IFv2014-0135Tillgänglig från: 2015-08-24 Skapad: 2015-08-24 Senast uppdaterad: 2019-01-14Bibliografiskt granskad

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Garcia, JohanAlfredsson, StefanBrunström, Anna

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Garcia, JohanAlfredsson, StefanBrunström, Anna
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Institutionen för matematik och datavetenskap (from 2013)
TelekommunikationKommunikationssystemDatavetenskap (datalogi)

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