End-to-end reference QoS architecture for 802.11 WLAN

Hoang Nguyen, Raoul Rivas, Klara Nahrstedt

Research output: Contribution to journalArticlepeer-review


With the big success of 802.11 wireless networks, there have been many proposals addressing end-to-end QoS guarantees in 802.11 WLAN. However, we have found that current end-to-end QoS architectures lack of one or more important properties such as cross-layer interaction, end-to-end integration, reconfigurability and modularity. In this work, we present an end-to-end reference QoS architecture for 802.11 WLAN that encapsulates in an unifying fashion software-based QoS components (mechanisms, algorithms, services), proposed in the literature. To show the usefulness and correctness of the reference architecture, we present three case studies of end-to-end QoS architectures addressing different QoS requirements such as bandwidth and delay with different approaches such as differentiated services and integrated services. We will give an architectural comparison and performance evaluation of these architectures. We believe the reference QoS architectures can help QoS designers to understand the importance and the complexity of various QoS components during the design phase and thus choose these QoS components appropriately.

Original languageEnglish (US)
Pages (from-to)1350-1358
Number of pages9
JournalIEICE Transactions on Communications
Issue number6
StatePublished - Jun 2010


  • Cross-layer design
  • QoS management
  • Soft real-time scheduling
  • WLAN

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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