A Survey on MIMO OFDM PAPR Decreasing Methodologies

Lots of research being carried out now a days to outperform in terms of QoS and reliable in the area of modern wireless communication system in the same regard we are investigating various methodologies of detection in MIMOOFDM System. Here we are studying MMSE and modified forms of MMSE detection algorithms, Sphere decoding methodologies and the combination of these two in MIMO OFDM system with digital modulation methodologies like BPSK, QPSK and QAM etc [1]. The advantages of hybrid detection technique are the better PAPR performance of the system for lower signal to noise ratio values as well as the reliability against interference and noises. Keyword OFDM, MIMO, PAPR, Precoding.