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Title:
動的なデジタル通信システムの制御
Document Type and Number:
Japanese Patent JP5735582
Kind Code:
B2
Abstract:
A method of vectored transmission in a Digital Subscriber Line (DSL) system using Discrete Multi-tone communications over a plurality of communications lines, each of the plurality of communication lines have at least one transmitter and at least one receiver, and wherein cross-talk interference between the plurality of communication lines occurs during transmission, the method comprising: providing signals within a plurality of tones to a precoder block, determining parameters of the precoder block using a communication adaptation unit and line and signal characteristics of the plurality of communication lines, pre-distorting the signals within the plurality of tones using the precoder block and the determined parameters, and transmitting the pre-distorted signals on at least one of the plurality of communication lines, wherein the cross-talk interference is eliminated or reduced by transmission of the pre-distorted signal on the at least one of the plurality of communications lines.

Inventors:
Guinis, Gorgos
Yu, way
Dzong, Chaohan
Coffey, John
Application Number:
JP2013119199A
Publication Date:
June 17, 2015
Filing Date:
June 05, 2013
Export Citation:
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Assignee:
INTERNATIONAL BUSINESS MACHINES CORPORATION
International Classes:
H04J11/00; H04B3/04; H04B3/32; H04B15/00; H04J99/00; H04L27/26; H04L29/10; H04M11/06; H04B1/10
Domestic Patent References:
JP2000049724A
JP2001086007A
JP2000349800A
Foreign References:
WO2000051303A1
Other References:
George Ginis, John M.Cioffi,A multi-user precoding scheme achieving crosstalk cancellation with application to DSL systems,IEEE the Thirty-Fourth Asilomar Conference on Signals, Systems & Computers,米国,IEEE,2000年11月 1日,Vol.2,p.1627-1631
George Ginis, John M. Cioffi,Vectored-DMT: A FEXT Canceling ModulationScheme for Coordinating Users,Communications, 2001. ICC 2001. IEEE International Conference on,2001年 6月,Volume:1
Frank Sjoberg,Mikael Isaksson, Rickard Nilsson,Per Odling,Sarah Kate Wilson, Per Ola Borjesson,Zipper: a duplex method for VDSL based on DMT,Communications, IEEE Transactions on,1999年 8月,Volume:47 , Issue: 8,Pages:1245 - 1252
IEEE Globecom'01,Vol.1,p394-398
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto