By Topic

Adaptive tap allocation decision feedback equalizer for multipath channel

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)
Jae Hong Park ; Dept. of Electron. Eng., Hanyang Univ., Seoul, South Korea ; Jung Min Choi ; Min Ho Kim ; Jung Su Kim
more authors

This paper proposes an adaptive tap allocation technique based on the Kalman algorithm for minimizing the number of taps which are used for updating the equalizer coefficient. The conventional equalizer needs many taps to be adequate for the multipath channel with a long delay, which causes a high computational complexity for updating the coefficient. We propose a new method that the energy of tap and the channel delay length are observed during a training period and then the taps having negligible energy are gradually excluded from the coefficient update every channel delay length. The remaining taps form a new coefficient vector that reduces the computational complexity without any performance degradation. The proposed structure is simulated on the channel of the North American terrestrial high definition television (HDTV). Simulation results show that the computational complexity is almost 25 times lower than that of the conventional structure with the same convergence speed and mean square error (MSE) rate.

Published in:

Communication Systems, 2002. ICCS 2002. The 8th International Conference on  (Volume:1 )

Date of Conference:

25-28 Nov. 2002