Study of PTS based technique to reduce PAPR in SFBC MIMO OFDM system with reduced complexity

According to the necessity of leading communication field there should be high data rate in addition to both power efficiency and lower bit error rate. This demand of high data rate can be completed by the single carrier modulation with adjusting the determination among the power efficiency and bit error rate. Again in the existence of frequency selective fading environment, it is highly hard to achieve high data rate for this single carrier modulation with a lower bit error rate performance. In view of an advance step towards the multi carrier modulation scheme it is likely to get high data rate in this multipath fading channel without lowering the bit error rate performance. To reach a goal of good performance using multi carrier modulation we should make the subcarriers to be orthogonal to one and all i.e. known as the Orthogonal Frequency Division Multiplexing (OFDM) technique. But one of the deprivation of the OFDM technique is its high Peak to Average Power Ratio (PAPR).The high PAPR which advances to in-band distortion and out-band radiation. This can be obviated with booming the dynamic range of power amplifier which leads to high cost and high utilisation of power at the base station. In this paper various differing PTS scheme are presented to reduce PAPR Also the determination of bit error rate performance and the computational complexity for these techniques are being discussed here.