EFFICIENCY EVALUATION OF THE «VECTORING» SYSTEM APPLICATION IN THE DOMESTIC MULTIPAIR CABLES

Abstract

A simplified formulas for calculating the total power of the crosstalk at the far end, the immunity of the total crosstalk at the far end and suppression "vectoring" system crosstalk in xDSL-systems parallel operation on the bundle twist cables with the number of bundles to three are defined. Power spectral density of the additive noise and the crosstalk ratio at the receiver input of the transmission systems on VDSL2 and G.fast technologies without "vectoring" system and using it depending on the signal frequency, the line length and the number of pairs in the cable at full load transmission systems is estimated. The efficiency of the "vectoring" crosstalk compensation system application by crosstalk suppression value in the frequency range up to 100 MHz with parallel operation of the xDSL-systems on the domestic multipair telephone cable ТПП-10x2, 20x2 and 30x2 with a cable length to 1 km is estimated.