Papr reduction based on PTS combined interleaving and analysis of BER using hadamard code in OFDM systems

In the advancement of world there is a need to communicate each other, either in the form of speech, video, audio or data. In the past, message was sent in the form of analog signals, but nowit is handled in the form of digital signals. When the multi carrierwas used instead of single carrier, more multi carrier systems developed such as Orthogonal Frequency Division Multiplexing (OFDM). In this all the carriers are orthogonal to each other. Its advantages in multipath fading channel are elimination of InterSymbol Interference (ISI), InterCarrier Interference (ICI), best Quality of Service (QoS) and better usage of bandwidth. To reduce High Peak to Average Power Ratio and Bit Error Rate problems more techniques are used. Further each technique has its own disadvantages such as Complexity in-band distortion and out-of-band radiation into OFDM signals. In this paper will discuss to reduce PAPR value by combining the techniques of Partial Transmit Sequence (PTS) and interleaving. The Bit Error Rate occurring in the systems are minimized with the help of Hadamard coding technique.