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Application of Software-defined Networking in Enterprise WLAN

Maghsoudlou, Aniss | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 49238 (19)
  4. University: Sharif University of Technology
  5. Department: Computer Engineering
  6. Advisor(s): Hemmatyar, Ali Mohamad Afshin
  7. Abstract:
  8. Wireless LANs are becoming widespread in enterprises due to extensive usage of mobile devices and appearance of bring-your-own-device policies. However, mechanisms common in home WLANs are not sufficient for managing lots of access point and clients in an enterprise WLAN and WLAN controllers which are used in enterprises nowadays are limited to a fixed set of commands operated from a CLI and the source code is not changeable. Also, their effectiveness can be harvested alongside access points from the same vendor. Thus, dynamic high level programming for whole network configuration is an absolute need in this changing business environment and Software-defined Networking (SDN) will empower us to do so. SDN de-facto standard, OpenFlow, is not suitable for wireless management as it is designed for wired networks. This research focuses on reaping the benefits of SDN for enterprise WLANs. In this study, we have introduced and analyzed existing frameworks to apply SDN in enterprise WLANs and compared them. Then, we’ve tried to cover their shortcomings such as the ability to lower energy consumption by access points. One of achievements of this study is reducing energy consumption by 70% in a simulated enterprise WLAN topology with a thousand access points and ten thousands clients connected to them. The framework proposed in this study could be used in enterprise WLANs to enhance energy saving, reduce interference, and easily manage the complicated enterprise WLAN networks
  9. Keywords:
  10. Software Defined Networking (SDN) ; OpenFlow Protocol ; Network Management ; Institiute Electrical and Electronic Engineers (IEEE)802.11a Standard ; Wireless Local Area Network ; Enterprise Wireless Local Area Networks (WLANs)

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