OFDM ANALOG SELF INTERFERENCE CANCELLATION SYSTEM IN OFDM-BASED WIRELESS COMMUNICATION SYSTEM

摘要

The invention of an OFDM-based wireless communication transmission, the baseband to be transmitted relates to the analog self interference removal systems in the system, using the input signal of the baseband transmission signals generated a transmission signal, generated by the wireless communication using an input signal doctor magnetic been passed self-interference signal generator for generating an interference signal, and the transmission signal transmitted from the transmitter via a wireless communication, receiving the pseudo self-interference signal from the self-interference signal generator extracting the pseudo input signal from the self by using the interference signal to remove the self interference signal included in the transmission signal, to extract the removed signal magnetic interference signal included in the transmission signal from the transmission signal the baseband the chair includes a period including the receiver, and the transmission signal received the receiving unit is transferred to Perturbation signal is a magnetic signal produced by the interference formed by the multi-channel signal the transmission signal when said receiver receives a transmission signal transmitted by the transmitting unit via wireless communication. Therefore, the baseband magnetic interference signal estimation and generator of a transmitter by estimating the self-interference signal by adding a delay, and weighting the baseband signal in the transmitting end, so generating a pseudo magnetic interference signal, add the hardware configuration to produce magnetic interference signal there is an effect that it is possible to generate a self-interference signal of the multipath channel without.;