AquareYoum: Application- and Quality of Experience-Aware Resource Management for YouTube in Wireless Mesh Networks

نویسندگان

  • Barbara Staehle
  • Florian Wamser
  • Matthias Hirth
  • David Stezenbach
  • Dirk Staehle
چکیده

Das Internet ermöglicht den Zugang zu einer Vielzahl von Diensten wie z.B. YouTube, Skype, Cloud Storage oder IPTV. Die vom Benutzer erfahrene Quality of Experience (QoE) oder Dienstgüte ist jedoch oftmals nicht optimal, da die Netze keine Kenntnis über die Dienste haben deren Daten sie transportieren. Daher werden IPTV Pakete, die in Echtzeit ausgeliefert werden müssen, genauso behandelt wie zu einem Dokument-Upload gehörende weniger zeitkritische Pakete, auch wenn eine Priorisierung von IPTV technisch möglich wäre. Werden drahtlose Mesh Netze (WMNs) als Internetzugangsnetze genutzt, ist dieses Problem besonders akut, da Ressourcen knapper sind als in drahtgebundenen Zugangsnetzen. Im Rahmen des BMBF Projektes G-Lab1 entstand daher das Konzept Aquarema (Application and QoE-aware resource management), das ein auf Informationen der Anwendungsschicht reagierendes dynamisches Ressourcenmanagement (RM) für WMNs vorschlägt [1]. Die Software-Suite AquareYoum ist eine konkrete Realisierung dieses Konzepts. AquareYoum vermeidet eine Unterbrechung eines YouTube-Videos, indem es eine solche vorhersagt und in diesem Fall die Verteilung der WMN-Ressourcen gezielt anpasst. Das Video wird flüssig abgespielt und die QoE von YouTube Nutzern in diesem WMN verbessert.

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عنوان ژورنال:
  • Praxis der Informationsverarbeitung und Kommunikation

دوره 34  شماره 

صفحات  -

تاریخ انتشار 2011