Title :
Zipper: a duplex method for VDSL based on DMT
Author :
Sjoberg, Frank ; Isaksson, Mikael ; Nilsson, Rickard ; Ödling, Per ; Wilson, Sarah Kate ; Börjesson, Per Ola
Author_Institution :
Dept. of Signal Process., Lulea Univ. of Technol., Sweden
fDate :
8/1/1999 12:00:00 AM
Abstract :
We present a new duplex scheme, called Zipper, for discrete multitone (DMT)-based very high bit-rate digital subscriber line (VDSL) systems on copper wires. This scheme divides the available bandwidth by assigning different subcarriers for the upstream and downstream directions. It has high flexibility to divide the capacity between the up and downstream, as well as good coexistence possibilities with other systems such as ADSL. Simulation results show the high bit-rate performance in different environments such as mixed ADSL and VDSL traffic under radio frequency interference and with different background noise sources
Keywords :
digital subscriber lines; modulation; noise; radiofrequency interference; telecommunication traffic; Cu; DMT modulation; RFI; VDSL; Zipper; background noise sources; bandwidth; copper wires; discrete multitone; downstream direction; duplex method; high bit-rate performance; mixed traffic; radio frequency interference; simulation results; subcarriers; upstream direction; very high bit-rate digital subscriber line; Background noise; Bandwidth; Bit rate; Copper; DSL; OFDM modulation; Radiofrequency interference; Telecommunication standards; Traffic control; Wires;
Journal_Title :
Communications, IEEE Transactions on
