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

Optimum and sub-optimum multiuser detection based on sphere decoding for multi-carrier code division multiple access 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

1 Author(s)
Brunel, L. ; Telecommun. Lab., Mitsubishi Electr. ITE, Rennes, France

When performed using an exhaustive search, the maximum likelihood (ML) joint detection of all users in a multi-carrier code division multiple access (MC-CDMA) system has a prohibitive complexity, growing exponentially with the number of users and the number of bits in each modulation symbol. An ML multiuser detection algorithm has previously been proposed, with a complexity growing polynomially with the number of users, independent of the modulation size. The MC-CDMA system is modelled as a sphere packing lattice and a low-complexity optimum lattice decoder, called the sphere decoder, is applied to jointly detect all users. We propose sub-optimum simplifications, based on orthogonal projection of the received signal on a facet of the lattice constellation, to further decrease the complexity. Simulation results are shown with up to 64 users transmitting 16-QAM symbols.

Published in:

Communications, 2002. ICC 2002. IEEE International Conference on  (Volume:3 )

Date of Conference:


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.