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Low-Latency Scheduling in MPTCP
Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för datavetenskap. Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013).ORCID-id: 0000-0002-8731-2482
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013).ORCID-id: 0000-0001-7311-9334
Ericsson Research, Stockholm.
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2019 (engelsk)Inngår i: IEEE/ACM Transactions on Networking, ISSN 1063-6692, E-ISSN 1558-2566, Vol. 1, s. 302-315, artikkel-id 8584135Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The demand for mobile communication is continuously increasing, and mobile devices are now the communication device of choice for many people. To guarantee connectivity and performance, mobile devices are typically equipped with multiple interfaces. To this end, exploiting multiple available interfaces is also a crucial aspect of the upcoming 5G standard for reducing costs, easing network management, and providing a good user experience. Multi-path protocols, such as multi-path TCP (MPTCP), can be used to provide performance optimization through load-balancing and resilience to coverage drops and link failures, however, they do not automatically guarantee better performance. For instance, low-latency communication has been proven hard to achieve when a device has network interfaces with asymmetric capacity and delay (e.g., LTE and WLAN). For multi-path communication, the data scheduler is vital to provide low latency, since it decides over which network interface to send individual data segments. In this paper, we focus on the MPTCP scheduler with the goal of providing a good user experience for latency-sensitive applications when interface quality is asymmetric. After an initial assessment of existing scheduling algorithms, we present two novel scheduling techniques: the block estimation (BLEST) scheduler and the shortest transmission time first (STTF) scheduler. BLEST and STTF are compared with existing schedulers in both emulated and real-world environments and are shown to reduce web object transmission times with up to 51% and provide 45% faster communication for interactive applications, compared with MPTCP's default scheduler.

sted, utgiver, år, opplag, sider
IEEE, 2019. Vol. 1, s. 302-315, artikkel-id 8584135
Emneord [en]
asymmetric paths., low-latency, MPTCP, scheduling, Transport protocols, Mobile telecommunication systems, Scheduling algorithms, Wireless telecommunication systems, asymmetric paths, Interactive applications, Low latency, Low-latency communication, Performance optimizations, Real world environments, 5G mobile communication systems
HSV kategori
Forskningsprogram
Datavetenskap
Identifikatorer
URN: urn:nbn:se:kau:diva-71263DOI: 10.1109/TNET.2018.2884791ISI: 000458851600022Scopus ID: 2-s2.0-85058877698OAI: oai:DiVA.org:kau-71263DiVA, id: diva2:1290756
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Knowledge FoundationTilgjengelig fra: 2019-02-21 Laget: 2019-02-21 Sist oppdatert: 2019-11-07bibliografisk kontrollert

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Hurtig, PerGrinnemo, Karl-JohanBrunström, Anna

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