1. A method of reducing crosstalk in a system, the method comprising:
obtaining a plurality of groups of lines based on crosstalk characteristics of the system, lines in a same group of lines
being permitted to be active during a same time slot;
identifying a first set of lines associated with data to send and a second set of lines associated with no data to send, the
first set of lines being designated for transmission during a selected time slot;
modifying the first set of lines in accordance with the plurality of groups of lines; and
transmitting symbols during the selected time slot using the modified first set of lines.