Title :
Evaluation of decision feedback equalization in VDSL environment
Author :
Haar, S. ; Zukunft, R. ; Magesacher, T.
Author_Institution :
Inst. for Integrated Circuits-BRIDGELAB, Munich Univ. of Technol., Germany
Abstract :
Single carrier modulation (SCM) is one of the two standardized modulation types for the evolving very high rate digital subscriber line (VDSL). The key element of an SCM receiver is the decision feedback equalizer (DFE). We apply an analytical approach to performance evaluation of finite-length minimum mean square error (MMSE) DFE which takes into account number of equalizer taps and oversampling factor. Based on these means, performance results for two typical VDSL. test loops are presented neglecting the analog front end´s (AFE) influence and focusing on fractionally spaced equalization.
Keywords :
decision feedback equalisers; digital subscriber lines; least mean squares methods; quadrature amplitude modulation; DFE; SCM; VDSL; decision feedback equalizer; equalizer taps; finite-length MMSE; fractionally spaced equalization; minimum mean square error; oversampling factor; performance evaluation; single carrier modulation; test loops; very high rate digital subscriber line; Copper; Costs; Crosstalk; DSL; Decision feedback equalizers; Digital modulation; Filters; Performance analysis; Testing; Transceivers;
Conference_Titel :
BroadBand Communications for the Internet Era Symposium digest, 2001 IEEE Emerging Technologies Symposium on
Conference_Location :
Richardson, TX, USA
Print_ISBN :
0-7803-7161-5
DOI :
10.1109/ETS.2001.979411
