One-Tap Equalizer for Perfect Reconstruction DFT Filter Bank Transceivers

In this paper, we investigate a simple equalization method for DFT filter bank transceivers. We assume the presence of perfect reconstruction (PR) DFT filter banks and make use of this property to derive a one-tap per subcarrier equalizer. The proposed equalizer does not require additional bandwidth, other than the bandwidth necessary for PR purposes. Computer experiments show that the one-tap PR DFT filter bank transceiver outperforms the well-known OFDM system, especially in environments dominated by narrowband noise.