Enhanced PCF protocols for real-time multimedia services over 802.11 wireless networks

Ming Chuan Hsu*, Yaw-Chung Chen

*Corresponding author for this work

研究成果: Conference contribution同行評審

4 引文 斯高帕斯(Scopus)

摘要

In wireless network environment, different traffic classes exhibit a variety of characteristics and service requirements [4,5,7], such as data rate, maximum tolerable packet error rate and delay bounds. Although IEEE 802.11e [9,10] addresses the QoS issues and classifies the traffic into four prioritized access categories, there is still no guarantee of real-time transmission service due to the lack of an effective coordinating mechanism [11] among contending clients and a satisfactory scheduling method for various delay-sensitive packets from multiple traffic flows. In this work, we propose a nearly complete polling list solution to IEEE 802.11 WLAN by enhancing the original PCF protocol with better demand assignment features. A flexible and fair polling list method among the various time bounds is investigated in the proposed scheme. The performance evaluation based on NS-2 network simulator [12,13] shows that our schemes are well suited for variable bit rate service in real-time multimedia applications.

原文English
主出版物標題26th IEEE International Conference on Distributed Computing Systems Workshops, ICDCS 2006
DOIs
出版狀態Published - 1 十二月 2006
事件26th IEEE International Conference on Distributed Computing Systems Workshops, ICDCS 2006 - Lisboa, Portugal
持續時間: 4 七月 20067 七月 2006

出版系列

名字Proceedings - International Conference on Distributed Computing Systems

Conference

Conference26th IEEE International Conference on Distributed Computing Systems Workshops, ICDCS 2006
國家Portugal
城市Lisboa
期間4/07/067/07/06

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