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Algorithms and optimization for QoE aware routing in wireless networks: from centralized to decentralized solutions

Wireless and mobile networks have become an important part in our modern society. Thanks to ubiquitous wireless connectivity, people can connect to the Internet anytime and anywhere. Video streaming is one of the most popular services on the Internet and it covers from 70% to 82% of all Internet traffic. Modern infrastructure networks, such as Long-Term Evolution (LTE), are prospective solutions for video streaming because of their high data rates. Nevertheless, the high implementation cost and the lack of compatibility of users’ equipment prevent them from practical deployment. Infrastructure networks may not be available in some cases such as after disasters or in a rural area. In these scenarios, wireless mesh networks (WMNs) become a promising alternative because of its easy deployment, low cost, and recovery ability. The decisive component of WMNs is the routing algorithm in which the end-to-end routes are determined. Most of existing routing algorithms are based on single or combination of network-oriented metrics. Consequently, routing decisions may not correlate with user experience or Quality of Experience (QoE). This thesis addresses the QoE-aware routing of video streaming over WMNs and proposes centralized and decentralized routing algorithms that take user-oriented metrics into account. The results confirm the advantages of using QoE concept in routing algorithms.

Keywords: Wireless mesh networks, Routing algorithms, Quality of Experience (QoE), Video streaming

You are cordially invited to a drink after the defense in room Les Minquiers

Speaker: 
Quang Pham Tran An (DIONYSOS)
Date: 
Friday, 27. January 2017 - 10:30
Place: 
IRISA Rennes, Campus de Beaulieu, Room Métivier
Defense Type: 
Composition of jury: 
  • Toufik Ahmed, Professor, University of Bordeaux 1
  • Fabrice Théoleyre, CNRS Researcher, ICUBE, University of Strasbourg
  • Isabelle Guerin Lassous, Professor, University Claude Bernard Lyon 1
  • Marcelo Dias de Amorim, CNRS Director of research, LIP6
  • Kamal Singh, Associate professor, University of St Etienne
  • Kandaraj Piamrat, Associate professor, University of Reims
  • César Viho, Professor, University of Rennes 1
  • Xavier Lagrange, Professor, Institut Mines-Telecom Atlantique