Cross-layer analysis and design for multimedia services in IEEE 802.11 WLANs

Chiapin Wang, Tsungnan Lin, Pochiang Lin

研究成果: 書貢獻/報告類型會議貢獻

2 引文 斯高帕斯(Scopus)

摘要

IEEE 802.11 Wireless Local Area Networks (WLAN) supply broadband data accesses and evolve a growing demand of multimedia services for mobile users. To provide quality of service (QoS) for multimedia applications in WLANs, it is important to analyze the performance of 802.11 Medium Access Control (MAC) protocols under varying heterogeneous channel conditions. In this paper, we focus on 802.11 WLANs which adopt the MAC protocol of Distributed Coordination Function (DCF), and provide performance analyses to show the interlayer effect of physical-layer (PHY) channel diversities on DCF protocol as well as the consequent impact on multimedia QoS at application (APP) layer. We then discuss some feasible crosslayer designs for overall optimizing QoS performance in 802.11 WLANs. We also take example of the QoS unfairness problem due to the interlayer impact of PHY channel diversities and illustrate a solution of our cross-layer approach.

原文英語
主出版物標題Proceedings of the International Conference on Mobile Technology, Applications, and Systems, Mobility'08
DOIs
出版狀態已發佈 - 2008
對外發佈Yes
事件International Conference on Mobile Technology, Applications, and Systems, Mobility'08 - Yilan, 臺灣
持續時間: 2008 九月 102008 九月 12

其他

其他International Conference on Mobile Technology, Applications, and Systems, Mobility'08
國家臺灣
城市Yilan
期間2008/09/102008/09/12

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Human-Computer Interaction

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