By Topic

Cross-layer adaptive design for the frame length of IEEE 802.11 networks

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
$33 $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

2 Author(s)
Feng Zheng ; Department of Electronic and Computer Engineering, University of Limerick, Ireland ; John Nelson

In this paper, we study the cross-layer (between MAC and PHY) design problem for IEEE 802.11 wireless networks. It is focused on the design of the optimal length of the frame body. The following results are obtained: 1) The optimal length of the frame body in logarithmic scale, expressed as log Lf,opt, can be coarsely approximated by a linear function of the signal-to-noise power ratio (SNR) Eb/N0 (in dB) and finely approximated by a second-order polynomial of Eb/N0; 2) The coefficients of the aforementioned approximation functions depend only on the data transmission rate and other parameters specified in the protocol, and they do not depend on the access mechanisms; 3) The number of active nodes has little effect on Lf,opt, especially in the range of both low and high SNR; 4) The system throughput is sensitive to the length of the frame body Lf when the SNR is low, while it is insensitive to Lf in a considerably large neighborhood of Lf,opt when the SNR is high; and 5) Fragmentation can always increase the system throughput, but the increasing rate is conspicuous only in the low SNR regime.

Published in:

Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks and Workshops, 2008. WiOPT 2008. 6th International Symposium on

Date of Conference:

1-3 April 2008