By Topic

Assured and expedited forwarding extensions for IEEE 802.11 wireless LAN

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Banchs, A. ; Network Labs., NEC Eur. Ltd., Heidelberg, Germany ; Radimirsch, M. ; Perez, X.

We propose DIME (DiffServ MAC extension), an extension of the IEEE 802.11 MAC protocol to support differentiated services. The proposed extension consists of two optional modules: expedited forwarding (EF) and assured forwarding (AF). The expedited forwarding extension (DIME-EF) reuses the interframe space of the point coordination function (PCF) of the IEEE 802.11 standard in a distributed manner, while the assured forwarding extension (DIME-AF) relies on the distributed coordination function (DCF) with a modified algorithm for the computation of the contention window (CW). Best effort is supported by the functionality of the current 802.11 standard in such a way that legacy IEEE 802.11 terminals behave as best effort terminals in the DIME architecture. While the performance of the assured forwarding extension has been thoroughly evaluated by the authors elsewhere (see Banchs, A. and Perez, X., Proc. IEEE Wireless Commun. and Networking Conf., 2002), this paper concentrates on the overall architecture and the performance of the expedited forwarding extension.

Published in:

Quality of Service, 2002. Tenth IEEE International Workshop on

Date of Conference:

2002