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An Examination of the Benefits of Scalable TTI for Heterogeneous Traffic Management in 5G Networks
Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, Faculty of Science & Engineering.
Nokia Bell Labs, Germany.
Nokia Bell Labs, Germany.
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2017 (English)In: 2017 15TH INTERNATIONAL SYMPOSIUM ON MODELING AND OPTIMIZATION IN MOBILE, AD HOC, AND WIRELESS NETWORKS (WIOPT), IEEE , 2017Conference paper, Published paper (Refereed)
Abstract [en]

The rapid growth in the number and variety of connected devices requires 5G wireless systems to cope with a very heterogeneous traffic mix. As a consequence, the use of a fixed transmission time interval (TTI) during transmission is not necessarily the most efficacious method when heterogeneous traffic types need to be simultaneously serviced. This work analyzes the benefits of scheduling based on exploiting scalable TTI, where the channel assignment and the TTI duration are adapted to the deadlines and requirements of different services. We formulate an optimization problem by taking individual service requirements into consideration. We then prove that the optimization problem is NP-hard and provide a heuristic algorithm, which provides an effective solution to the problem. Numerical results show that our proposed algorithm is capable of finding near-optimal solutions to meet the latency requirements of mission critical communication services, while providing a good throughput performance for mobile broadband services.

Place, publisher, year, edition, pages
IEEE , 2017.
Keyword [en]
5G; scalable TTI; deadline-constrained traffic; low latency; channel allocation; service-centric scheduler
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:liu:diva-142996DOI: 10.23919/WIOPT.2017.7959871ISI: 000413806500010ISBN: 978-3-9018-8290-6 OAI: oai:DiVA.org:liu-142996DiVA: diva2:1156527
Conference
15th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)
Note

Funding Agencies|European Unions Horizon 2020 research and innovation programme under Marie Sklodowska-Curie grant [643002]

Available from: 2017-11-13 Created: 2017-11-13 Last updated: 2017-11-13

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf