Reduction of an PAPR in OFDM by Partial Transmit Sequences Technique

Orthogonal frequency division multiplexing (OFDM) is a appealing technique approach for achieving high bit rate data transmission in wireless transmission. It uses available channel more efficiently by placing the subcarriers close enough provided subcarriers are orthogonal to each other. OFDM reduces the inter-symbol interference caused by multipath propagation. OFDM also reduces bit error rate. Its high peak to average power ratio (PAPR) is a major drawback which limited its applications. Recently various promising techniques for reducing the PAPR have been proposed. In this paper we present the reduction of the PAPR using the Partial Transmit sequence.