直交 ちょっこう周波 しゅうは すう多重 たじゅう変調 へんちょうであれば
chokkōshūhasūtajūhenchōdeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 直交周波数多重変調

1. if it is orthogonal frequency-division multiplexing; when it is orthogonal frequency-division multiplexing

Ba Conditional
Computing