Improved time domain equalization for ADSL
Kristel Van Acker, Geert J. T. Leus, Marc Moonen, S Claes, O. van de Wiel · 1997
An improved optimization algorithm for the time domain equalizer (TEQ) is developed in case of Frequency Division Multiplexing - based Asymmetric Digital Subscriber Line (FDMADSL). In contrast with existing algorithms, our algorithm explicitly disregards the unused tones in the optimization function as well as in the nontriviality constraint. Some simulation results are presented for the upstream channel. It is shown that the achievable bitrate is higher than with a classical algorithm which imposes a unit norm constraint on the full target impulse response (TIR).