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Using multiple paths in SCTP to reduce latency for signaling traffic
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013). Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Centrum för HumanIT.ORCID-id: 0000-0002-6723-881X
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013).ORCID-id: 0000-0003-4147-9487
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013).ORCID-id: 0000-0001-7311-9334
2018 (engelsk)Inngår i: Computer Communications, ISSN 0140-3664, E-ISSN 1873-703X, Vol. 129, s. 184-196Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The increase in traffic volumes as well as the heterogeneity in network infrastructure in the upcoming 5G cellular networks will lead to a dramatic increase in volumes of control traffic, i.e., signaling traffic, in the networks. Moreover, the increasing number of low-power devices with an on-off behavior to save energy will generate extra control traffic. These increased traffic volumes for signaling traffic, often generated as bursts of messages, will challenge the signaling application timing requirements on transmission. One of the major transport protocols deployed for signaling traffic in cellular networks is the Stream Control Transmission Protocol (SCTP), with support for multiple paths as well as for independent data flows. This paper evaluates transmission over several paths in SCTP to keep the latency low despite increasing traffic volumes. We explore different transmission strategies and find that concurrent multipath transfer over several paths will significantly reduce latency for transmission over network paths with the same or similar delay. Still, over heterogeneous paths, careful, continuous sender scheduling is crucial to keep latency low. To this end, we design and evaluate a sender scheduler that considers path characteristics as well as queuing status and data flows of different priority to make scheduling decisions. Our results indicate that by careful dynamic sender scheduling, concurrent multipath transfer could lead to reduced latency for signaling traffic irrespective of path or traffic characteristics.

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Elsevier, 2018. Vol. 129, s. 184-196
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Datavetenskap
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URN: urn:nbn:se:kau:diva-70258DOI: 10.1016/j.comcom.2018.07.016ISI: 000446282200015OAI: oai:DiVA.org:kau-70258DiVA, id: diva2:1265127
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Knowledge FoundationTilgjengelig fra: 2018-11-22 Laget: 2018-11-22 Sist oppdatert: 2019-11-07bibliografisk kontrollert

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