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A Weighted Element-wise Block Adaptive Frequency-Domain Equalization in Frequency-selective Time-varying Channels

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2 Author(s)
Jong-Seob Baek ; Electrical and Electronic Engineering, Yonsei University, 134 Shinchon-Dong, Seodaemoon-Ku, Seoul, Korea. e-mail: blackgachi@yonsei.ac.kr ; Jong-Soo Seo

In this paper, a weighted element-wise block adaptive frequency-domain equalization (WEB-FDE) is proposed for a single-carrier system with the cyclic-prefix. In the WEB-FDE, the one-tap equalizer corresponding to a frequency-bin first preserves input DFT elements (element-wise block). Its coefficient in each block is then calculated by minimizing a weighted squared norm of the a posteriori error. Simulation results in a time-varying typical urban (TU) channel show that the bit-error-rate (BER) performances of the WEB-FDE outperform those of the normalized least-mean-square (NLMS)-FDE and recursive-least-square (RLS)-FDE.

Published in:

2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07  (Volume:3 )

Date of Conference:

15-20 April 2007