Preamble design for the digital compensation of Tx Leakage in zero-IF receivers

Transmitter Leakage has a significant impact on the system performance in mobile devices using zero-IF receivers. In contrast to analog approaches, digital Tx Leakage compensation approaches can easily be reconfigured and therefore are highly attractive for future mobile devices, using software defined radios. In this contributionwe present a digital Tx Leakage estimation and compensation approach, using specifically designed OFDM preambles, which are also suitable for the Uplink channel estimation.

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