Title :
Loop survey in the Taiwan area and feasibility study for HDSL
Author :
Chiu, Wu-Jhy ; Wu, Ming-Jung ; Hwang, Wen-King ; Wei, Shyue-Win
fDate :
8/1/1991 12:00:00 AM
Abstract :
About 2800 lines out of a total of 8,500,000 subscriber lines in Taiwan have been sampled and characterized. Various kinds of physical compositions and transmission characteristics were investigated and measured. It was found that the near-end crosstalk (NEXT) loss of Taiwan´s subscriber loops is about 10 dB worse than that of US local loops. A corresponding new foam-skin PIC cable is proposed to reduce the NEXT loss. The new type of cable will be used to replace the paper cable and old foam-skin PIC cable step-by-step. Based on the measured data, the feasibility of HDSL (high bit rate digital subscriber line) service in Taiwan is studied. To improve the HDSL service distance via the existing subscriber lines, several cable models are discussed and suggested
Keywords :
crosstalk; digital communication systems; subscriber loops; telecommunication cables; HDSL; NEXT loss; Taiwan; cable models; foam-skin PIC cable; high bit rate digital subscriber line; local loops; measured data; near end crosstalk; physical compositions; service distance; subscriber loops; transmission characteristics; Cities and towns; DSL; Helium; ISDN; Laboratories; Research and development; Skin; Subscriber loops; Telecommunications; Very large scale integration;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
