Reduced complexity intercarrier interference cancellation

Details Reduced complexity intercarrier interference cancellation Reduced complexity intercarrier interference cancellation

2006-10-10

2006-10-10

Patel, Jay K. (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

Reexamination Certificate

active

07120209

ABSTRACT:
Described is a transmission system for transmitting a multicarrier signal from a transmitter (10) to a receiver (20). The receiver (20) comprises an equalizer (24) for canceling intercarrier interference which may be included in the received multicarrier signal. The equalizer (24), which preferably is a MMSE equalizer, comprises a reduced complexity filter for deriving a vector of estimated symbols (25) from a vector of received symbols (23). The reduced complexity filter comprises a multiplication of an approximation of an inverse matrix R−1with the vector of received symbols (23). The approximation of the inverse matrix R−1is preferably a first order approximation.

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