Quality of services support for IEEE 802.11 WLAN

Zong Kai Yang, Lin Zheng, Jianhua He, Zhen Fan, Wenqing Cheng

    Research output: Contribution to journalConference articlepeer-review


    As the channel is accessed randomly in IEEE 802.11 WLAN systems, it's difficult to support Quality of Services for real time applications. To solve the issue, there are already some approaches proposed in different network layers. However, when those QoS approaches are implemented in different network environments, the performance may vary significantly. In this paper, we will compare two major classes of QoS schemes for IEEE 802.11 WLAN in MAC layer and network layer respectively. The performances are compared in both one hop and multi-hop ad hoc network environments. It's observed that MAC layer QoS scheme is very efficient in one hop network environments, while network layer QoS schemes is only efficient for multi-hop ad hoc networks. Based on the observations, it's necessary to design a new hybrid scheme to efficiently support QoS in IEEE 802.11 WLAN system.

    Original languageEnglish
    Pages (from-to)198-204
    Number of pages7
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Publication statusPublished - 6 Jul 2004
    EventAPOC 2003: Asia-Pacific Optical and Wireless Communications: Wireless Communications and Networks - Wuhan, China
    Duration: 4 Nov 20036 Nov 2003


    • Ad hoc networks
    • Media access control
    • Quality of services
    • Queuing management
    • Wireless LAN

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering


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