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[11-12, 2004] 

Journal of Electrical Engineering, Vol 55, 11-12 (2004) 281-289

THE ANALYSIS OF FEATURES OF MODIFIED PRECODING AND CODING TECHNIQUES USED BY THE VDSL TECHNOLOGY

Rastislav Rka - Stanislav Dlh

   For successfully analyzing the signal protection in the case of VDSL transmission on metallic homogeneous symmetric lines, it is necessary to know the basic features of the VDSL environment and the main properties of the techniques able to eliminate the negative influences on the transmitted signals. This article briefly discusses the proposed coding and precoding techniques and introduces a simulation model for the VDSL environment. The main part of the article is focused on analyzing various types of precoding techniques alone or in combination with the trellis code modulation and with the discrete multitone modulation. The results of our modelling can be used for approving the VDSL system performance.

Keywords: coding and precoding techniques, the VDSL environment, the VDSL simulation model, THP and FLP precoding, BCH, RS and Ungerboeck coding


[full-paper]


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