Better wavelet packet tree structures for PAPR reduction in WOFDM systems
Digital Signal Processing
Selected mapping without side information for PAPR reduction in OFDM
IEEE Transactions on Wireless Communications
MIMO-OFDM PAPR reduction by selected mapping using side information power allocation
Digital Signal Processing
Performance analysis of equalized OFDM systems in Rayleigh fading
IEEE Transactions on Wireless Communications
SLM and PTS peak-power reduction of OFDM signals without side information
IEEE Transactions on Wireless Communications
Peak-to-average power ratio reduction in OFDM with blind selected pilot tone modulation
IEEE Transactions on Wireless Communications
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
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Pilot-assisted blind selected mapping (PB-SLM) scheme for multiple input single output (MISO) orthogonal frequency division multiplexing (OFDM) systems is proposed. At the receiver, individual values of autocorrelation of two consecutive pilot sub-channel responses are evaluated for all the phase sequences available at the transmitter. The phase sequence index corresponding to the highest value of autocorrelation is considered as the side information (SI) and used for data recovery. Due to the robust phase sequence selection based on pilot symbols, data decoding performance of the PB-SLM scheme is substantially better than that of the recent blind SLM (B-SLM) scheme for MISO OFDM systems with space-frequency block coding, which is based on sub-optimal maximum likelihood of data symbols, and almost identical with that by the simplified SLM scheme with perfect SI. Moreover, computational complexity is significantly lower than that of the B-SLM scheme.