Enhancing QoS in 802.11e with beacon management

    Authors

    K. Anna; A. Karnik; R. Guha;M. Chatterjee

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Keywords

    WIRELESS LANS; IEEE 802.11E; Computer Science, Information Systems; Computer Science, Theory &; Methods; Telecommunications

    Abstract

    802.11e is a new supplement to the family of 802.11 standards, which aims at providing QoS to voice and other streaming services. Nodes are assured transmission opportunities within their delay bounds in the contention free period (CFP). A beacon is used to mark the start of a CFP. Any delay in the issue of the beacon would adversely affect the timely delivery of time-sensitive traffic. In this paper, we propose a scheme that prevents the delays in the beacon issue, which might be caused due to nodes operating in the contention period, transmitting MAC service data units beyond super frame boundaries. Our beacon management scheme not only assures a timely beacon issue enhancing the delay bound guarantees but also maintains the throughput. Simulations were conducted to analyze the performance of the proposed scheme. The results demonstrate that when timely transmission of QoS bound traffic is achieved by preventing a late beacon issue, the average length of super-frames is maintained and results in increased number of super frames over time.

    Journal Title

    High Speed Networks and Multimedia Communications, Proceedings

    Volume

    3079

    Publication Date

    1-1-2004

    Document Type

    Article

    Language

    English

    First Page

    598

    Last Page

    608

    WOS Identifier

    WOS:000222523700054

    ISSN

    0302-9743; 3-540-22262-6

    Share

    COinS