Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via frequency channels
Patent
1996-07-10
1998-08-04
Ton, Dang
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via frequency channels
370333, H04J 100
Patent
active
057905509
ABSTRACT:
To allocate a number of data elements to a set of carriers, the carriers are divided into N subsets of carriers according to a predetermined carrier criterion whilst the data elements are classified into N groups of data elements according to a predetermined data criterion, N being an integer greater than one. The predetermined data and carrier criterion have a relation on the basis of which the N subsets of carriers are associated one by one to the N groups of data elements. The data elements classified in such a group are then allowed to be modulated only on carriers which form part of the subset associated with this group. In addition, for each subset of carriers and related group of data elements, the distribution is obtained by means of information from subset dependent `required SNR (Signal to Noise Ratio) per data element`-tables and previously carried out SNR measurements for each carrier.
REFERENCES:
patent: 4679227 (1987-07-01), Hughes
patent: 5301052 (1994-04-01), Audouin et al.
patent: 5361254 (1994-11-01), Storck et al.
patent: 5400322 (1995-03-01), Hunt et al.
IBM Technical Disclosure Bulletin, vol. 34, No. 7B, Dec. 1991, pp. 373-376, "Greedy Waterpouring Recipe for Fourier Transform".
Twenty-Sixth Annual Allerton Conference on Communications, Control, and Computing, 28-30 Sep. 1988, Monticello, US, pp. 473-479."Fourier transform coding for peak limited channels".
draft American National Standard for Telecommunications on ADSL (Asymmetric Digital Subscriber Line, by ANSI in Apr. 1994.
"Performance of Multicarrier with DSL Impulsed Noise" by P.S. Chow, J.M. Cioffi and R.K. Maxwell, Reference No. T1E1.4/91-159.
"A Multicarrier E11-HDSL Transceiver System with Coded Modulation" by Chow et al, published in NR 3 May/Jun. 1993 of the Journal of European Transactions, 257-266.
"Performance Evaluation of a Multichannel Transceiver System for ADSL & VHDSL Services" by Chow et al, issue Nr. 6 Aug. 1991 of Journal of European Trans.etal, pp. 909-919.
Kerckhove Jean-Francois Van
Peeters Johan
Spruyt Paul Marie Pierre
Alcatel NV
Ton Dang
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