Multi-Sequences for Paper Fall Devoid of Face Information in SFBC MIMO OFDM Systems

A novel unconventional multi-sequences scheme for the peak-to-average power ratio (PAPR) reduction in multi-input multi-output orthogonal frequency division multiplexing (MIMOOFDM) systems with space frequency block coding (SFBC). The key idea of the proposed scheme is keeping the advantage of the SFBC structure to generate some alternative multisequences via combining the signals at different transmit antennas. Specifically, when the proposed scheme is employed in SFBC MIMO-OFDM systems with quadrature amplitude modulation (QAM), one of the big advantages is that the side information does not need to be sent to the receiver. Theoretical analysis and simulation results validate that the proposed scheme has the ability to provide large PAPR reduction, low bit error rate and low computational complexity without side information in SFBC MIMO-OFDM systems. this paper describes some of the important PAPR reduction techniques for multicarrier transmission including a novel alternative multi sequences (AMS) scheme and a low-complexity PAPR reduction scheme for SFBC OFDM MIMO systems. Compare and contrast of above techniques are discussed.