MATLAB DMTTEQ Toolbox User's Manual Time Domain Equalizer Design for Discrete Multitone Modulation
نویسنده
چکیده
The DMTTEQ Toolbox is free software; you can redistribute it anddor modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or at your option any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
منابع مشابه
DSP Workshop October 15{18, 2000 FAST TIME-DOMAIN EQUALIZATION FOR DISCRETE MULTITONE MODULATION SYSTEMS
In discrete multitone receivers, a time-domain equalizer (TEQ) shortens the e ective channel impulse response. The e ective channel impulse response is ideally nonzero inside a short window and zero elsewhere. The samples outside of the window cause intersymbol interference. The ratio between the samples inside and outside of this window is called the shortening signalto-noise (SSNR). In this p...
متن کاملSynchronization and Channel Estimation for Filtered Multitone Modulation
This paper deals with synchronization and channel estimation in a filtered multitone (FMT) modulated system. An FMT based system differs from the popular OFDM scheme in the deployment of sub-channel shaping filters. Although the synchronization problem in OFDM is well understood, in an FMT system it presents several challenges. The approach herein presented is based on the deployment of appropr...
متن کاملMaximizing the channel capacity of multicarrier transmission by suitable adaptation of the time-domain equalizer
An adaptation algorithm for determining the timedomain equalizer coefficients is described that maximizes the total channel capacity for all carriers of a multitone (discrete multitone) transmission. It takes into account the crosstalk noise environment and the interblock interference as a common disturbance. Furthermore, the leakage effect of the discrete Fourier transform (fast Fourier transf...
متن کاملTime-domain Equalizer Design for Discrete Mijltitone Systems
In Discrete Multitone (DMT) transceivers, a cyclic prefix of length y is inserted between transmitted symbols. If the channel impulse response is of length y + 1 or shorter, the intersymbol interference can be avoided. To reduce the inefficiency due to the use of a long cyclic prefix, the use of a time domain equalizer (TEQ) to shorten the effective channel impulse response has been the most po...
متن کاملPerformance Comparison of Time-Domain Equalization (TEQ) Techniques in a Discrete Wavelet Multitone (DWMT) System for Asymmetric Digital Subscriber Line (ADSL)
A Discrete Wavelet Multitone (DWMT) transceiver is proposed for the Asymmetrical Digital Subscriber Line (ADSL) channel, which promises greater subchannel spectral containment, as compared to the Fourier transform based conventional Discrete Multitone (DMT) system. Wavelet packet transform applied in DWMT system is robust against narrowband interference and impulse noise. It is also spectrally ...
متن کامل