Zero tail unique word discrete sine transform spread OFDM

In this paper, it is proposed a new unique word (UW) OFDM waveform based on zero-tail discrete Sine transform spread OFDM (ZT UW DST-S OFDM). The proposed waveform improves the ZT DST-S-OFDM and UW OFDM methods by removing the influence of the data symbols on the tail of the transmitted signal. In order to test the performance of the proposed method, computer simulation studies are performed on frequency selective Rayleigh fading channels. The obtained results confirm that the proposed waveform has better peak to average power ratio (PAPR) and bit error rate (BER) performance than the conventional OFDM, ZT DFT-S OFDM and ZT UW DFT-S OFDM systems. © 2018 IEEE.