Title :
A distortion analysis and optimal design of orthogonal basis for DMT transceivers
Author :
Lin, Xueming ; Akansu, Ali N.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
An orthogonal transmultiplexer (synthesis/analysis filter bank) utilizing DFT (discrete fourier transform) basis is the current DMT (discrete multitone) standard for HDSL communications. The measures of the ICI and ISI distortions in a multicarrier modulation scheme are presented. The ICI and ISI performance of DFT along with other known linear transforms are compared. The issues of optimal basis design for a given channel are discussed. The available design tools of the subband transform theory are highlighted for the future performance improvements
Keywords :
adjacent channel interference; digital filters; discrete Fourier transforms; electric distortion; frequency division multiplexing; intersymbol interference; subscriber loops; transceivers; transmultiplexing; DFT basis; DMT transceivers; HDSL communications; ICI; ISI; channel; design tools; distortion analysis; multicarrier modulation scheme; optimal basis design; optimal design; orthogonal basis; orthogonal transmultiplexer; performance; subband transform theory; synthesis/analysis filter bank; Amplitude modulation; Discrete Fourier transforms; Discrete transforms; Distortion measurement; Filters; Frequency; Interchannel interference; Intersymbol interference; OFDM modulation; Transceivers;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3192-3
DOI :
10.1109/ICASSP.1996.543941
