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

Optimal power allocation for real-time services in OFDM-based cognitive radio systems

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 $31
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)
Jian He ; Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China ; Changqing Xu ; Li Li

In this paper, the adaptive power allocation problem on the downlink of a multiuser orthogonal frequency division multiplexing (OFDM) based cognitive radio (CR) systems with real-time (RT) services is investigated. The objective is to minimize the total transmit power of all CR users with satisfying the minimum bit rate requirements for RT services and limiting the interference to primary users' (PUs) bands below a given threshold. The problem is formulated using convex optimization method and an optimal algorithm is proposed by efficient iteration to search the optimal solution, and the performance of the proposed algorithm is also estimated and compared with that of other methods by numerical simulations.

Published in:

Wireless, Mobile and Multimedia Networks (ICWMNN 2010), IET 3rd International Conference on

Date of Conference:

26-29 Sept. 2010

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.