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

Ming Chuan Hsu*, Yaw-Chung Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

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.

Original languageEnglish
Title of host publication26th IEEE International Conference on Distributed Computing Systems Workshops, ICDCS 2006
DOIs
StatePublished - 1 Dec 2006
Event26th IEEE International Conference on Distributed Computing Systems Workshops, ICDCS 2006 - Lisboa, Portugal
Duration: 4 Jul 20067 Jul 2006

Publication series

NameProceedings - International Conference on Distributed Computing Systems

Conference

Conference26th IEEE International Conference on Distributed Computing Systems Workshops, ICDCS 2006
CountryPortugal
CityLisboa
Period4/07/067/07/06

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    Hsu, M. C., & Chen, Y-C. (2006). Enhanced PCF protocols for real-time multimedia services over 802.11 wireless networks. In 26th IEEE International Conference on Distributed Computing Systems Workshops, ICDCS 2006 [1648945] (Proceedings - International Conference on Distributed Computing Systems). https://doi.org/10.1109/ICDCSW.2006.46