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Small Cell Wireless Backhaul Reconfiguration using Software-Defined Networking
2017 (English)In: 2017 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC), 2017Conference 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
2017.
Series
IEEE Wireless Communications and Networking Conference, ISSN 1525-3511
Identifiers
URN: urn:nbn:se:kau:diva-65648ISI: 000403137600460ISBN: 978-1-5090-4183-1 OAI: oai:DiVA.org:kau-65648DiVA, id: diva2:1175366
Conference
IEEE Wireless Communications and Networking Conference (WCNC), MAR 19-22, 2017, San Francisco, CA
Available from: 2018-01-17 Created: 2018-01-17 Last updated: 2018-01-17

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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