Simulation of ADSL over ISDN on German subscriber lines

Author

Kessler, Thomas ; Henkel, Werner

Author_Institution

Technol. Center, Deutsche Telekom, Darmstadt, Germany

Volume

1

Issue

5

fYear

1997

Firstpage

124

Lastpage

126

Abstract

The shortcomings of the existing asymmetric digital subscriber line (ADSL) standard ANSI T1.413 for application with the integrated services digital network (ISDN) are explained. An ADSL system modified by increasing the high-pass cutoff frequency of the splitter to about 140 kHz and, therefore, moving also the pilots, has been simulated under noise conditions and the ISDN requirements of the German subscriber line network. The reach reduction due to ISDN compared with the "plain old telephone service" (POTS) application is shown to he between 10% and 15%. It is proposed to apply ISDN ADSL rather than POTS ADSL.

Keywords

ANSI standards; ISDN; digital simulation; noise; simulation; subscriber loops; telecommunication standards; 140 kHz; ADSL standard; ADSL system; ANSI T1.413; German subscriber line network; ISDN; POTS; asymmetric digital subscriber line; high-pass cutoff frequency; integrated services digital network; loop length; noise conditions; plain old telephone service; reach reduction; simulation; splitter; ANSI standards; Bit rate; Crosstalk; Cutoff frequency; DSL; ISDN; Internet telephony; OFDM modulation; Quadrature amplitude modulation;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/4234.625032

Filename

625032