OFDM receiver

Details OFDM receiver OFDM receiver

2004-11-10

2008-08-19

Fan, Chieh M. (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

C375S348000, C375S148000

Reexamination Certificate

active

07415085

ABSTRACT:
An OFDM receiver receives an OFDM signal transmitted from an OFDM transmitter by using a sub-carrier. The OFDM receiver includes a channel estimator configured to obtain a channel estimated value of each multi-path based on OFDM signals received through a plurality of multi-paths; a transmission signal estimated value calculator configured to calculate a transmission signal estimated value as an estimated value of the OFDM signal; and an inter-carrier interference compensator configured to extract a multi-path not becoming a form to contain a signal component only of a target symbol in an FFT window based on the transmission signal estimated value and the channel estimated value of each multi-path, and to compensate for inter-carrier interference in the OFDM signal based on signal components corresponding to all sub-carriers of the multi-paths.

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Satoshi Suyama, et al., “An OFDM Receiver with Smoothed FFT-Window and RLS-MLSE for Fast Multipath Fading Environments with Large Delay Spread”, IEEE 7thInter. Symp. on Spread-Spectrum Tech. & Appl., vol. 2, XP-010615490, Sep. 2, 2002, pp. 353-357.
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