A Modified Turbo Coding for Reduction of FADING&BER in 4x4 OFDM with Full Rate of Communication-Implementation

In this study, we have found the outcome of nonlinear distortion, in this case phase distortion which is caused by High Power Amplifier (HPA) in Multi Input Multi Output System which consists of transmit/ receive filtering is scrutinized in detail. It is shown that nonlinear distortion impact in MIMO and SISO system is somewhat different. Then we figured out the constraints & Inadequacy from preceding papers. A new turbo encoder based phase compensator is proposed based on precise analysis. In Orthogonal Frequency Division Multiplexing (OFDM) an appropriate solution which provides better compensation of spectrum re-growth, constellation warping for ISI & ICI, the presented work uses a unique Turbo coding in Orthogonal Frequency Division OFDM based MIMO communication for fading&ICI reduction, Available MIMO-Turbo encoding are not working at full rate hence proposed work will use Space Frequency Block division (SFBD)to provide better orthogonality instead of Space-Time Block Coding (STBC).