PTS Technique for MIMO-OFDM Paper Reduction

Non linearity of High Power Amplifier will increase the bit error rate and hence it is necessary to perform back off from nonlinear region to linear region OFDM technology is widely used in current 4G standard. While Performing IFFT there is a possibility that some signals may be added with same phase and hence increasing peak power of signal which cease to increase peak to average power ratio (PAPR).MIMO-OFDM technology uses multiple transmitter and multiple receiver in combination to OFDM technology which leads to same problem of PAPR on different paths from multiple transmitter to multiple receiver. In this paper we discussed PTS technique for PAPR reduction OFDM technology, simulation of theoretical Complementary Cumulative Distributive Function (CCDF) of MIMO-OFDM technology is given in paper. Keywords— Multiple Input Multiple Out (MIMO), Peak to Average Power Ratio (PAPR), Orthogonal Space Time Block (OSTBC), partial transmit sequence (PTS), selective mapping technique (SLM). Input back off (IBO), Output back off (OBO) Discrete Cosine Transform (DCT), High Power Amplifier (HPA) ________________________________________________________________________________________________________