Joint Tx-Rx IQ imbalances create an error floor in AFDM bit error rates due to chirp-assisted modulation, which a cascade scheme correcting Rx IQI first then Tx IQI can remove.
Pilot- aided IQ imbalance compensation for OFDM systems operating over doubly selective channels
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Analysis and Compensation of Tx and Rx IQ Imbalances in AFDM System
Joint Tx-Rx IQ imbalances create an error floor in AFDM bit error rates due to chirp-assisted modulation, which a cascade scheme correcting Rx IQI first then Tx IQI can remove.