標題: | Time domain equalization for DMT transceivers: A new result |
作者: | Wu, WR Lee, CF 電信工程研究所 Institute of Communications Engineering |
公開日期: | 2005 |
摘要: | The time-domain equalizer (TEQ) is a commonly used device to shorten the channel impulse response a discrete multitone (DMT) receiver. With a capacity maximization criterion, many methods have been proposed to solve the TEQ problem. However, due to a mis-calculation of noise power, the optimal solutions claimed are actually not optimal. Since the noise component in a DMT symbol does not have cyclic prefix, the discrete-Fourier transform (DFT) of the TEQ-filtered noise does not equal to the DFT of the TEQ multiplied by that of noise. In this paper, we analyze the TEQ-filtered noise in detail and derive the correct noise power calculation formulae. Based on the result, we propose a new TEQ design method outperforming existing ones. |
URI: | http://hdl.handle.net/11536/17599 |
ISBN: | 0-7803-9266-3 |
期刊: | ISPACS 2005: PROCEEDINGS OF THE 2005 INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATION SYSTEMS |
起始頁: | 553 |
結束頁: | 556 |
顯示於類別: | 會議論文 |