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Using multiple paths in SCTP to reduce latency for signaling traffic
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013). Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT.ORCID iD: 0000-0002-6723-881X
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).ORCID iD: 0000-0003-4147-9487
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).ORCID iD: 0000-0001-7311-9334
2018 (English)In: Computer Communications, ISSN 0140-3664, E-ISSN 1873-703X, Vol. 129, p. 184-196Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 129, p. 184-196
National Category
Computer Engineering Robotics
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kau:diva-70258DOI: 10.1016/j.comcom.2018.07.016ISI: 000446282200015OAI: oai:DiVA.org:kau-70258DiVA, id: diva2:1265127
Projects
HITS, 4707
Funder
Knowledge FoundationAvailable from: 2018-11-22 Created: 2018-11-22 Last updated: 2019-11-07Bibliographically approved

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Eklund, JohanGrinnemo, Karl-JohanBrunström, Anna

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