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A discrete multitone transceiver system for HDSL applications

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3 Author(s)
Chow, J.S. ; Dept. of Electr. Eng., Standford Univ., CA, USA ; Tu, J.C. ; Cioffi, J.M.

A discrete multitone (DMT) transceiver design for high bit rate digital subscriber line (HDSL) access is presented and analyzed. The DMT transmitter and receiver structure and algorithms are detailed, and the computational requirements of DMT for HDSL are estimated. At a sampling rate of 640 kHz, using an appropriate combination of a short finite-impulse-response (FIR) equalizer and a length-512 DMT system, 1.6 Mb/s data transmission is possible within the carrier serving area (CSA) at an error rate of 10-7 on a single twisted pair. A significant performance margin can be achieved when two coordinated twisted pairs are used to deliver a total data rate of 1.6 Mb/s. In terms of a performance-per-computation figure of merit, the DMT system is an excellent candidate for HDSL implementation

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Selected Areas in Communications, IEEE Journal on  (Volume:9 ,  Issue: 6 )