By Topic

Multiuser detection using CMA and the cancellation method in fast-fading channels

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

2 Author(s)
Sun Jin Yeom ; Dept. of Inf. & Commun. Eng., Yeungnam Univ., South Korea ; Yong Wan Park

In this paper, we introduce a modified interference cancellation scheme for multi-user detection in DS/CDMA. Among ICs (interference cancellers), PIC (parallel interference canceller) requires more stages to have a better BER (bit error rate), and SIC (successive interference canceller) faces the problems of power reordering and large delays. Most of all, the adaptive detector achieves good performance using the adaptive filter conducted iteration algorithm. But it requires many iterations for convergence. To resolve those problems, we propose a new hybrid interference cancellation scheme combining the adaptive filter using CMA (constant modulus algorithm) and the cancellation method. The proposed interference canceller improves the performance more than the conventional adaptive detector for the same iterations and completely reduces iterations for the same BER performance because it uses the cancellation method after the process of the adaptive filter. The proposed IC structure does extract the following characteristics.; (1) it has the same BER performance only using much smaller iterations than the conventional adaptive detector (2) the detector having the adaptive filter requires less complexity than a nonlinear detector

Published in:

Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd  (Volume:6 )

Date of Conference:

2000