Scientia Iranica

Scientia Iranica

Performance Analysis of Per Tone Equalization in DMT-Based Systems

Author
Department of Electrical Engineering,Sharif University of Technology
Abstract
The Per Tone equalization algorithm is a novel discrete multitone(DMT) equalization method with practical applications in subscriber digital loop systems. Unlike time domain DMT equalizers (TEQ), which equalize all DMT tones in a combined fashion, the Per Tone equalizer equalizes each tone separately. In this paper, the performance and complexity of this technique is investigated and compared with that of other TEQs. Furthermore, the behavior of this technique in different simulation conditions, such as over different standard CSA loops and in the presence of additive white Gaussian noise with variable power spectral density level and near end crosstalk (NEXT), is studied and compared with that of other TEQs. Simulation results show that Per Tone has a reduced sensitivity to synchronization delay and a much better performance compared to other conventional DMT equalizer design algorithms.

Volume 13, Issue 4 - Serial Number 4
Transactions on Computer Science & Engineering and Electrical Engineering (D)
October 2006

  • Receive Date 31 January 2007
  • Accept Date 30 December 2006