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We propose a new algorithm for the IQ imbalance estimation and equalization of an Orthogonal Frequency Division Multiplexing (OFDM) system in the presence of a Carrier Frequency Offset (CFO) and of a dense multipath environment. Our algorithm has a low complexity and needs a single pilot symbol. Through numerical simulation and in the context of quick estimations of front-end non-idealities, our algorithm...
We propose a novel compensation method for frequency-selective I/Q Imbalance in OFDM receivers. The proposed algorithm allows simultaneous estimation of the I/Q imbalance and the channel, and can be used for all existing OFDM standards. Simulation results show that our method allows to compensate for extremely frequency-selective I/Q Imbalance on the reception of the first packet.
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