PRACTICAL LIMITS OF TRANSMISSION CHANNELS USED BY THE PROPOSED VDSL TECHNOLOGY

Rastislav Róka

   For successful expansion of new multimedia services through the VDSL technology in the access network in Slovakia, it is necessary to know basic features of the VDSL signal. This article introduces two parts of the analysis focused on the performance evaluation of proposed SCM and MCM modulation techniques for the VDSL technology. The first part of the analysis is dedicated to the bit allocation for particular subbands. The second part of the analysis is dedicated to the bit rate dependence on the line length. Also, total transmission rates dependent on line lengths and maximum reaches of the effective VDSL transmission according to various traffic types are presented.

Keywords: VDSL environment, SCM and MCM modulations, bit allocation, bit rate dependence on the length

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