Title :
Improved adaptive precoding algorithm for downstream in DSL systems using sign-error feedback
Author :
Jixiong, Liu ; Youming, Li ; Xinxing, Zhou
Author_Institution :
Inst. of Commun. Technol., Ningbo Univ., Ningbo, China
Abstract :
Crosstalk is the major limiting factor affecting the achieve rate of VDSL/VDSL2 system. For the downstream transmission, a precoder is generally used to compensate the effect of the crosstalk. Following J. Louveaux´s work, an improved adaptive precoder algorithm based on sign-error feedback information for crosstalk cancellation in downstream transmission is proposed in this paper. Computer simulation results are provided to verify that the new algorithm has fast convergence speed.
Keywords :
adaptive codes; codecs; digital subscriber lines; precoding; DSL systems; VDSL-VDSL2 system; adaptive precoder algorithm; adaptive precoding algorithm; computer simulation; crosstalk cancellation; digital subscriber line; downstream transmission; sign-error feedback; sign-error feedback information; Channel estimation; Convergence; Crosstalk; DSL; Least squares approximation; Receivers; Digital subscriber line; adaptive filter; procoder matrix; sign feedback;
Conference_Titel :
Electronics, Communications and Control (ICECC), 2011 International Conference on
Conference_Location :
Zhejiang
Print_ISBN :
978-1-4577-0320-1
DOI :
10.1109/ICECC.2011.6066677
