Multiplex communications – Generalized orthogonal or special mathematical techniques – Particular set of orthogonal functions
Patent
1997-09-30
2000-05-09
Patel, Ajit
Multiplex communications
Generalized orthogonal or special mathematical techniques
Particular set of orthogonal functions
375233, H04J 1100
Patent
active
060613270
ABSTRACT:
The present invention belongs to the field of transmission of a signal, using OFDM modulation (Orthogonal Frequency Division Multiplexing), from a transmitter to at least one receiver, via a transmission channel. The invention relates in particular to a device and a method for equalization of the received OFDM signal. Said equalization device is fitted into the reception system between a synchronization module and a module for binary decoding of the received signal, in which the receiver includes a recursive vector equalizer (10) capable of correcting the received signal in the time domain.
According to the invention, the recursive vector equalizer (10) includes computation means (16; 22; 24; 40; 44; 46; 56) capable of estimating each transmitted symbol as a function of an estimate of the transmitted symbol which precedes the said transmitted symbol.
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Demoulin Vincent
Pecot Michel
Herrman Eric P.
Kurdyla Ronald H.
Patel Ajit
Phunkulh Bob A.
Thomson Licensing S.A.
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