Title :
Application of NLMS, PNLMS, and i-PNLMS algorithms for NEXT cancellation in xDSL systems
Author :
Nongpiur, R.C. ; Shpak, D.J. ; Antoniou, A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
The application of the normalized least-mean square (NLMS), proportionate normalized least-mean square (PNLMS), and improved proportionate normalized least-mean square (i-PNLMS) algorithms for near-end crosstalk (NEXT) cancellation in digital subscriber line (xDSL) systems is examined. Extensive simulations have been carried out with these algorithms and on the basis of the results obtained the convergence rate and adaptation characteristics of the various algorithms are compared under different noise conditions. The simulations have been carried in two kinds of environment, namely, with just one type of DSL system and with a mixture of different DSL systems.
Keywords :
crosstalk; digital subscriber lines; interference suppression; least mean squares methods; adaptation characteristics; convergence rate; digital subscriber line systems; improved proportionate normalized least-mean square; near-end crosstalk; normalized least-mean square; proportionate normalized least-mean square; Computational modeling; Convergence; Crosstalk; DSL; Delay; Filters; Frequency; Least squares approximation; Noise cancellation; Working environment noise;
Conference_Titel :
Communications, Computers and signal Processing, 2003. PACRIM. 2003 IEEE Pacific Rim Conference on
Print_ISBN :
0-7803-7978-0
DOI :
10.1109/PACRIM.2003.1235805
