MMSE equalizers for DMT systems with cross talk

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04K 110, H04L 2728

Patent

active

060977639

ABSTRACT:
A improved method for optimally equalizing a multicarrier communications system in the presence of both intersymbol interference (ISI) and colored noise. The method provides a frequency-domain training algorithm to obtain a minimum mean square error (MMSE) equalizer that accounts for both intersymbol interference (ISI) and colored noise, maximizes the signal to noise ratio (SNR) of systems using Discrete Multitone (DMT) modulation, and results in significant performance gains over prior equalization methods.

REFERENCES:
patent: 4141072 (1979-02-01), Perreault
patent: 4435823 (1984-03-01), Davis et al.
patent: 4475211 (1984-10-01), Mattis, Jr. et al.
patent: 4547889 (1985-10-01), Picchi et al.
patent: 5155742 (1992-10-01), Ariyavisitakul et al.
patent: 5222101 (1993-06-01), Ariyavisitakul et al.
patent: 5249200 (1993-09-01), Chen et al.
patent: 5268930 (1993-12-01), Sendyk et al.
patent: 5285474 (1994-02-01), Chow et al.
ANSI "Network and customer installation interfaces: Asymmetric digital subscriber line (ADSL) metallic interface," in draft American National Standard for Telecommunications, vol. T1E1. 94-007R8, 1995.
Chow, S. Jackey and Cioffi, M. John, "A cost Effective Maxium Likelihood Receiver for Multicarrier Systems", Intl. Conf on Comm., pp. 948-952, Chicage, Jun. 1992.
Tzannes A. Michael, Tzannes C. Marcos, Proakis John and Heller N. Peter, "DMT Systems, DWMT Systems and Digital Filter Banks", Proceedings of ICC '94.
Roger A. Horn, and Charles R. Johnson, "Martix Analyssis", Cancridge University Press, 1991.
J.S. Chow et al, "A Discrete Multistone Transceiver System for HdL Applications", Aug. 1991, IEEE Journal on Selected Areas in Communications, vol. 9, No. 6, pp.895-908.
J.M. Cioffi et al, A Data-Driven Multistone Echo Canceller, Globecom, Nov. 1991, pp. 57-61.
J.Pennington, "Techniques for Medium-Speed Data Transmission Over HF Channels," IEE Proceedings, vo. 136, Pt. 1 No. 1, pp. 11-19, Feb. 1989.
Bingham, A.C. John "Multicarrier Modulation for Data Transmission: An Idea Whose Time Has Come", May 1990, IFEEE Journal on Selected Area in Communication, pp. 5-14.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

MMSE equalizers for DMT systems with cross talk does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with MMSE equalizers for DMT systems with cross talk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MMSE equalizers for DMT systems with cross talk will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-671152

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.