Title :
Bandwidth selection for the very high-rate digital subscriber line (VDSL) system
Author :
Krinsky, D.M. ; Veeneman, D.E. ; Olshansky, R.
Author_Institution :
GTE Labs. Inc., Waltham, MA, USA
Abstract :
Work is under way to develop a very high-rate digital subscriber line (VDSL) system capable of operating over twisted-pair media at data rates in excess of 10 Mbps. The twisted-pair channel is characterized by both an attenuation and crosstalk susceptibility which increase with frequency and length. The signaling bandwidth for such a channel can be selected to maximize the bit rate. This optimization is carried out for loop lengths in the 1-5 kft range. It is shown that the optimal signal bandwidth is quite sensitive to the loop length. For example, the optimal bandwidth for a 1 kft loop is more than twice that of the 3 kft loop
Keywords :
channel capacity; crosstalk; digital communication; optimisation; subscriber loops; telecommunication signalling; twisted pair cables; 10 Mbit/s; 1000 to 5000 ft; VDSL; attenuation; bandwidth selection; bit rate; crosstalk; data rates; frequency; length; loop length; optimal signal bandwidth; optimization; signaling bandwidth; twisted-pair channel; twisted-pair media; very high-rate digital subscriber line; Attenuation; Bandwidth; Crosstalk; DSL; Decision feedback equalizers; Filters; Laboratories; Quadrature amplitude modulation; Signal to noise ratio; Topology;
Conference_Titel :
Communications, 1996. ICC '96, Conference Record, Converging Technologies for Tomorrow's Applications. 1996 IEEE International Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-3250-4
DOI :
10.1109/ICC.1996.533645
