- Research Article
- Open Access
Alien Crosstalk Cancellation for Multipair Digital Subscriber Line Systems
EURASIP Journal on Advances in Signal Processing volume 2006, Article number: 016828 (2006)
An overview of alien crosstalk cancellation for DSL systems with multiple pairs is here presented. It is shown that when a common crosstalk source affects the receivers of multiple pairs, the noise exhibits a certain correlation among the pairs. In a DMT system, the frequency-domain noise samples are most strongly correlated between pairs when they correspond to the same tone. Thus, noise decorrelation algorithms applied independently for each tone can provide significant performance enhancements. Three possible methods are described for noise decorrelation, one is suitable for two-sided coordination and two are suited for receiver coordination among the pairs. It is theoretically proven that the data-rate performance of these three methods is identical from the perspective of the sum rate over all pairs. Simulation results corresponding to an ADSL2+ two-pair system with a T1 disturber are presented to illustrate the noise correlation property and to indicate the potential performance benefits.
Honig ML, Steiglitz K, Gopinath B: Multichannel signal processing for data communications in the presence of crosstalk. IEEE Transactions on Communications 1990, 38(4):551–558. 10.1109/26.52667
Lechleider JW: Coordinated transmission for two-pair digital subscriber lines. IEEE Journal on Selected Areas in Communications 1991, 9(6):920–930. 10.1109/49.93102
Huber J, Fischer R: Dynamically coordinated reception of multiple signals in correlated noise. Proceedings of IEEE International Symposium on Information Theory (ISIT '94), June–July 1994, Trondheim, Norway 132–132.
Ginis G, Cioffi JM: Vectored-DMT: a FEXT canceling modulation scheme for coordinating users. Proceedings of IEEE International Conference on Communications (ICC '01), June 2001, Helsinki, Finland 1: 305–309.
Ginis G, Cioffi JM: Vectored transmission for digital subscriber line systems. IEEE Journal on Selected Areas in Communications 2002, 20(5):1085–1104. 10.1109/JSAC.2002.1007389
Tauböck G, Henkel W: MIMO systems in the subscriber-line network. Proceedings of 5th International OFDM-Workshop (InOWo '00), September 2000, Hamburg, Germany 18.1–18.3.
Cendrillon R, Ginis G, Moonen M, Van Acker K, Bostoen T, Vandaele P: Partial crosstalk precompensation in downstream VDSL. Signal Processing 2004, 84(11):2005–2019. 10.1016/j.sigpro.2004.07.013
Cendrillon R, Moonen M, Ginis G, Van Acker K, Bostoen T, Vandaele P: Partial crosstalk cancellation for upstream VDSL. EURASIP Journal on Applied Signal Processing 2004, 2004(10):1520–1535. 10.1155/S1110865704309273
Cendrillon R, Moonen M, Van den Bogaert E, Ginis G: The linear zero-forcing crosstalk canceller is near-optimal in DSL channels. Proceedings of IEEE Global Telecommunications Conference (GLOBECOM '04), November–December 2004, Dallas, Tex, USA 4: 2334–2338.
Cendrillon R, Ginis G, Moonen M, Verlinden J, Bostoen T: Improved linear crosstalk precompensation for DSL. Proceedings of IEEE International Conference on Acoustics, Speech, Signal Processing (ICASSP '04), May 2004, Montreal, Quebec, Canada 4: 1053–1056.
Starr T, Sorbara M, Cioffi JM, Silverman PJ: DSL Advances. Prentice-Hall, Englewood Cliffs, NJ, USA; 2003.
Magesacher T, Ödling P, Börjesson PO, et al.: On the capacity of the copper cable channel using the common mode. Proceedings of IEEE Global Telecommunications Conference (GLOBECOM '02), Novemeber 2002, Taipei, Taiwan 2: 1269–1273.
Tsatsanis M: Vectoring techniques for multi-line 10MDSL systems. T1E1.4 committee, contribution 2002-196, August 2002
Schneider K, Sandstrom L: MIMO vs. SISO capacity on twisted pair loops. T1E1.4 committee, contribution 2002-259, November 2002
Tsatsanis M, Erickson MA, Shah S: Multiline transmission in communication systems. International application published under the Patent Cooperation Treaty, international application number PCT/US03/18004
Sjöberg F, Isaksson M, Nilsson R, Ödling P, Wilson SK, Börjesson PO: Zipper: a duplex method for VDSL based on DMT. IEEE Transactions on Communications 1999, 47(8):1245–1252. 10.1109/26.780461
ITU-T Recommendation G.993.1, Very high speed digital subscriber line, June 2004
ITU-T Recommendation G.992.5, Asymmetrical Digital Subscriber Line (ADSL) transceivers—Extended bandwidth ADSL2 (ADSL2plus+), May 2003
Raleigh GG, Cioffi JM: Spatio-temporal coding for wireless communication. IEEE Transactions on Communications 1998, 46(3):357–366. 10.1109/26.662641
Cover TM, Thomas JA: Elements of Information Theory. John Wiley & Sons, New York, NY, USA; 1991.
Kasturia S, Aslanis JT, Cioffi JM: Vector coding for partial response channels. IEEE Transactions on Information Theory 1990, 36(4):741–762. 10.1109/18.53735
Cioffi JM, Forney GD Jr.: Generalized decision-feedback equalization for packet transmission with ISI and Gaussian noise. In Communications, Computation, Control, and Signal Processing: A Tribute to Thomas Kailath. Edited by: Paulraj A, Roychowdhury VP, Schaper CD. Kluwer Academic, Boston, Mass, USA; 1997:79–127. chapter 4
Proakis JG: Digital Communications. 3rd edition. McGraw-Hill, New York, NY, USA; 1995.
Cendrillon R, Moonen M, Ginis G, Van Acker K, Bostoen T, Vandaele P: Partial crosstalk cancellation exploiting line and tone selection in upstream VDSL. Proceedings of 6th Baiona Workshop on Signal Processing in Communications (Baiona '03), September 2003, Baiona, Spain
About this article
Cite this article
Ginis, G., Peng, C. Alien Crosstalk Cancellation for Multipair Digital Subscriber Line Systems. EURASIP J. Adv. Signal Process. 2006, 016828 (2006). https://doi.org/10.1155/ASP/2006/16828
- Correlation Property
- Significant Performance
- Potential Performance
- Performance Enhancement
- Line System