Pulse or digital communications – Transmitters
Reexamination Certificate
2006-09-19
2006-09-19
Vanderpuye, Kenneth (Department: 2638)
Pulse or digital communications
Transmitters
C375S222000
Reexamination Certificate
active
07110467
ABSTRACT:
A method and apparatus selects forward error correction parameters in a channel having a plurality of subchannels in a multicarrier communications system. A signal-to-noise ratio representing a subset of the subchannels is determined. A number (s) of discrete multi-tone symbols in a forward-error-correction frame, a number (z) of forward-error-correction control symbols in the discrete multitone symbol associated with the signal-to-noise ratio, a number of subchannels associated with the signal-to-noise ratio, and a net coding gain for different values of s, z, signal-to-noise ratios and numbers of subchannels is stored in a table. Forward error correction parameters of the channel are selected based on the net coding gain by applying an approximation to a subset of values in the table.
REFERENCES:
patent: 5479447 (1995-12-01), Chow et al.
patent: 5511079 (1996-04-01), Dillon
patent: 5600663 (1997-02-01), Ayanoglu et al.
patent: 5699365 (1997-12-01), Klayman et al.
patent: 5699369 (1997-12-01), Guha
patent: 5852633 (1998-12-01), Levin
patent: 5896391 (1999-04-01), Solheim et al.
patent: 6064692 (2000-05-01), Chow
patent: 6072779 (2000-06-01), Tzannes et al.
patent: 6075821 (2000-06-01), Kao et al.
patent: 6088390 (2000-07-01), Russell et al.
patent: 6092230 (2000-07-01), Wood et al.
patent: 6101223 (2000-08-01), Betts
patent: 6128763 (2000-10-01), LoGalbo et al.
patent: 6130882 (2000-10-01), Levin
patent: 6163766 (2000-12-01), Kleider et al.
patent: 2003/0066005 (2003-04-01), Iglesia et al.
Numerical Recipes in C: The Art of Scientific Computing, Cambridge, MA, 1992, pp. 212-221.
D. Bertsekas et al, Data Networks, (©1992, Prentice Hall), pp. 64-86 and 149-240.
John A.C. Bingham, “Multicarrier Modulation for Data Transmission: An Idea Whose Time Has Come”, IEEE Communications Magazine, May 1990, pp. 5-14.
Walter Y. Chen, DSL: Simulation Techniques and Standards Development for Digital Subscriber Line Systems, (©1998, MacMillan Technical Publishing), pp. 465, 11, and 119-121.
Peter S. Chow, “Bandwidth Optimized Digital Transmission Techniques for Spectrally Shaped Channels with Impulse Noise”, Ph.D. thesis, Stanford University, May 1993, pp. ii-187.
Chow et al, “A Practical Discrete Multitone Transceiver Loading Algorithm for Data Transmission over Spectrally Shaped Channels”, IEEE Transactions on Communications, vol. 43, No. 2/3/4, Feb./Mar./Apr. 1995, pp. 773-775.
N.G. de Bruijn, Asymptotic Methods in Analysis, (©1981, Dover Publications, Inc.), pp. 22-23.
F.J. MacWilliams et al, Chapter 10, Section 10, “Reed-Solomon and Justesen Codes —Decoding RS codes”, The Theory of Error-Correcting Codes, (©1977, Elsevier Science), p. 306.
V.S. Mitlin, Nonlinear Dynamics of Reservoir Mixtures, (©1993, CRC Press), pp. 173-177.
J. Proakis, “Digital Communications”, McGraw-Hill, New York, 1995, pp. 260-263, 278-282, 441, 464-67.
ITU Recommendation G.992.1:Asymmetric Digital Subscriber Line (ADSL) Transceivers, Geneva, 1999, pp. i-240.
ITU Recommendation G.992.2: Splitterless Asymmetric Digital Subscriber Line (ADSL) Transceivers, Geneva, 1999, pp. i-165.
Mitlin Vlad
Murphy Timothy F.
3Com Corporation
Perilla Jason M.
Vanderpuye Kenneth
LandOfFree
Performance evaluation of a G.dmt-compliant digital... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Performance evaluation of a G.dmt-compliant digital..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Performance evaluation of a G.dmt-compliant digital... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3610987