supported by the National Natural Science Foundation of China(61431004,11304056,6140114,11274079);Education Department of Heilongjiang Province(135209239);Science and Technology Bureau of Qiqihar(GYGG-201622)
Due to the intricacy characteristics of the Underwater Acoustic(UWA) channel especially the limited bandwidth, Orthogonal Frequency Division Multiplexing(OFDM) is used because of its high spectrum efficiency. Howe...