Frequency division multiple access (FDMA) dedicated transmission

Details Frequency division multiple access (FDMA) dedicated transmission Frequency division multiple access (FDMA) dedicated transmission

1996-01-30

1998-09-15

Pham, Chi H.

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via frequency channels

370482, 370483, H04J 100

Patent

active

058090304

ABSTRACT:
The demodulation of data modulated on a set of carriers with equidistant frequencies by a plurality of transmitters (T1 . . . Tn) is executed in the present transmission system (TS) by a discrete multitone receiver (DMT-R). The transmitters (T1 . . . Tn) in the transmission system (TS) modulate their data on subsets of carriers which form part of the set of carriers with equidistant frequencies. These transmitters (T1 . . . Tn) are possibly additionally equipped with a cyclic prefix adder (CPA); synchronization between them is guaranteed if a predefined condition is fulfilled.

REFERENCES:
patent: 5228025 (1993-07-01), Le Floch et al.
patent: 5323255 (1994-06-01), Sierens et al.
patent: 5479447 (1995-12-01), Chow et al.
patent: 5623513 (1997-04-01), Chow et al.
patent: 5636246 (1997-06-01), Tzannes
patent: 5644573 (1997-07-01), Bingham et al.
"TPON -A Passive Optical Network for Telephony" from J.R. Stern et al from the proceeding of ECOC '88, pp. 203 -206.
European Transactions on Telecommunications and Related Technologies, vol. 4, No. 3, May, 1993, Milano, IT, pp. 257-266, P.S. Chow et al "A Multicarrier Ei-HDSL Transceiver System with Coded Modulation", p. 259.

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