Study on ZP-OFDM for underwater acoustic communication

Recent years, OFDM is attempted to use in underwater acoustic communication. But CP-OFDM and ZP-OFDM using overlap-add method have a bad performances when channel is severe frequency-selective, especially with channel nulls, and this is often encountered in underwater acoustic channel. ZP-OFDM using complicated channel equalization on the premise of the channel transfer matrix is Toeplitz matrix not only use low transmission power but also could overcome it. Monte-Carlo simulation proved that this method has a better performance than CP-OFDM, and has a good application prospect for underwater acoustic communication.