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Stream-aware Scheduling to Improve Latency for Signaling Traffic using CMT-SCTP
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science. (Distributed Systems and Communications Research Group (DISCO))
Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. (Distributed Systems and Communications Research Group (DISCO))
Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. (DISCO)
2016 (English)Conference paper (Refereed)
Abstract [en]

To mitigate delay spikes during transmission ofbursty signaling traffic, concurrent multipath transmission(CMT) over several paths in parallel could be an option. Still,unordered delivery is a well known problem when transmittingover asymmetric network paths, leading to extra delay due toHead-of-Line Blocking (HoLB). The Stream Control TransmissionProtocol (SCTP) is designed as a carrier for signaling trafficover IP to reduce the impact of HoLB. SCTP has support fortransmission of separate flows, called SCTP streams. SCTP iscurrently being extended with support for CMT (CMT-SCTP). Inthis paper, we address sender scheduling to optimize latency forsignaling traffic over CMT-SCTP. We present dynamic streamaware(DS) scheduling, which utilizes the SCTP stream concept,and continuously considers the current network status as well asthe data load to make scheduling decisions. We implement a DSScheduler and compare it against a dynamic path (DP) schedulerthat does not consider streams. Our investigation shows that DSscheduling could significantly reduce latency compared to a DPscheduler.

Place, publisher, year, edition, pages
2016.
National Category
Communication Systems
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kau:diva-43499OAI: oai:DiVA.org:kau-43499DiVA: diva2:941316
Conference
Swedish National Computer Networking Workshop (SNCNW 16) Sundsvall 1-2 juni
Projects
HITS
Available from: 2016-06-22 Created: 2016-06-22 Last updated: 2016-09-27Bibliographically approved

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Eklund, JohanGrinnemo, Karl-JohanBrunström, Anna
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ReferencesLink to record
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