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

Power-and bit-loading algorithms for multitone 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 $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)
Daly, D. ; Dept. of Electron. & Electr. Eng., Univ. Coll. Dublin, Ireland ; Heneghan, C. ; Fagan, A.D.

Optimal power-and bit-loading in a multitone system requires prohibitive nonlinear programming. A useful near-optimal solution has previously been proposed which imposes a uniform error probability distribution across the tones. In this paper, we examine two alternative near-optimal solutions and offer a comparison with the existing solutions. The first imposes uniform power across the used tones and optimizes the bitloading and error probability distribution. The second is a default scheme in which both uniform power and error probability are enforced on all used tones, and only the bitloading is variable. These four algorithms are compared in terms of estimated throughput and complexity, using the eight standard CSA loops as testbeds. It is found that the new near-optimal algorithm achieves similar rates to the existing near-optimal scheme. More interestingly, it is found that the default scheme also provides rates which typically exceed 99% of the theoretical maximum rate at vastly reduced complexity.

Published in:

Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the 3rd International Symposium on  (Volume:2 )

Date of Conference:

18-20 Sept. 2003

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.