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IEEE/ICACT20210238 Question.3 Questioner: kenta-suzuki@atr.jp 2021-02-09 오후 5:46:29	IEEE/ICACT20210238 Answer.3 Answer by Auhor kawano.masahiro959@mail.kyutech.jp 2021-02-09 오후 5:46:29
Thank you for your interesting presentation. I'm Kenta Suzuki from ATR. I understand that the clock synchronization among devices is important for the proposed method in order to cancel the self interference. My question is following. Does the malti-path delay of the desired signal which will occur in a realistic environment affect to the canceling process?	Thank you for your question. Even if the multipath delay of the target signal is large, that is, the delay profile is large, it does not affect the self-interference (SI) canceling process. In the proposed method, the transmitter is adjusted so that the null beam is directed toward the self-channel matrix from AP to AP. As a result, SI is automatically canceled when it reaches the antenna of the AP for which want to cancel SI. Therefore, when the target signal arrives, the SI has already been canceled, and the desired signal does not interfere with the SI cancellation.

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