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Small Cell Wireless Backhaul Reconfiguration Using Software-Defined Networking
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science. (Computer Networking, DISCO)ORCID iD: 0000-0002-4961-5087
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science. (Computer Networking, DISCO)ORCID iD: 0000-0002-9446-8143
2017 (English)In: Wireless Communications and Networking Conference (WCNC), 2017 IEEE, IEEE conference proceedings, 2017Conference paper, Published paper (Refereed)
Abstract [en]

In order to increase the capacity of next generation mobile networks, network densification is a key aspect to provide better coverage and increased data rates to end users. Network operators are thinking to deploy wireless backhaul solutions to cut down cabling costs for connecting the small cell nodes. Consequently, the next generation mobile network architecture may contain a massive amount of small cells that are connected through wireless backhaul links, forming mesh or tree structures towards the core network, under the umbrella coverage of eNodeB type macro cells. In this paper, we use a Software-Defined Networking (SDN) based architecture for the operation and management of such small cell backhaul networks. By extending OpenFlow, the SDN controller is able to reconfigure not only the routing, but also the wireless backhaul configuration, such as channel assignment to backhaul links. We demonstrate the effectiveness of our approach by using testbed measurements and show that, when using our SDN-based reconfiguration, the network downtime for existing traffic due to channel re-assignment is significantly reduced, when comparing to a distributed routing based approach. Moreover, by using SDN based fast-failover techniques, we can instantaneously redirect traffic to other neighbors when links fail or neighbors are powered down, without the need for controller interaction.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2017.
Series
IEEE conference proceedings, E-ISSN 1558-2612
Keyword [en]
SDN, wireless backhaul, small cell networks, 5G
National Category
Computer Science
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kau:diva-64532DOI: 10.1109/WCNC.2017.7925943ISBN: 978-1-5090-4184-8 (print)ISBN: 978-1-5090-4183-1 (electronic)OAI: oai:DiVA.org:kau-64532DiVA: diva2:1149148
Conference
Wireless Communications and Networking Conference (WCNC), 2017 IEEE, 19-22 March 2017, San Francisco, CA, USA
Projects
SOCRA
Funder
Knowledge Foundation, 4840
Available from: 2017-10-13 Created: 2017-10-13 Last updated: 2017-11-22Bibliographically approved

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  • apa
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