Cart (Loading....) | Create Account
Close category search window

A Slot-Based MAC Protocol in Cognitive Radio Wireless 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
$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

5 Author(s)
Linbo Zhai ; Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing ; Kaiming Liu ; Yuanan Liu ; Ming Yang
more authors

In this paper, a slot-based MAC protocol is proposed for cognitive radio wireless networks. This protocol makes cognitive users sense licensed channels periodically, and each period consists of a fixed number of slots. When cognitive users identify un-used licensed channels, they use IEEE 802.11 distribution coordination function (DCF) to contend the spare channels. According to 802.11 DCF, all other cognitive users freeze their backoff counters when a cognitive user transmits data. So the decrement of backoff counter, which equals to the decrement of the number of slots in one period, depends on the traffic of cognitive users. When the slots of one period decrease to zero, this period ends. So the duration of each period may be variable with different busy conditions of cognitive users. We use the Markov chain model to estimate the saturation throughput of our proposed MAC protocol.

Published in:

Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on

Date of Conference:

12-14 Oct. 2008

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.