Title :
The potential for high-rate digital subscriber loops
Author :
Hunt, R.G. ; Cook, J.W. ; Kirkby, R.H. ; Cole, N.G.
Author_Institution :
British Telecom Res. Lab., Ipswich, UK
Abstract :
Calculations of the reach attainable by simple transmission systems operating over local loop plant at 800 kb/s are presented. The calculations are based on models of cable gain for pulse and single-frequency signals derived from measurements on real cables, and on a simple model for near-end crosstalk, which is the dominant noise source. The capacity achieved on the limiting length of cable is compared with the Shannon fundamental limit for transmission on that channel
Keywords :
channel capacity; crosstalk; encoding; subscriber loops; telecommunication cables; 800 kbit/s; Shannon fundamental limit; cable gain model; cable limiting length; decision feedback equalisation; high-rate digital subscriber loops; information capacity; line codes; linear equalisation; local loop plant; near-end crosstalk; pulse signals; simple transmission systems; single-frequency signals; Cables; Crosstalk; DSL; Decision feedback equalizers; Filtering; Frequency measurement; Gain measurement; ISDN; Pulse measurements; Transformers;
Conference_Titel :
Communications, 1989. ICC '89, BOSTONICC/89. Conference record. 'World Prosperity Through Communications', IEEE International Conference on
Conference_Location :
Boston, MA
DOI :
10.1109/ICC.1989.49751
