Adjecent partitioning PTS with TURBO coding for PAPR reduction in OFDM

Abstract

Multicarrier communication (MCM) place a major role in wireless and wired communication. The multicarrier communication have more spectral efficiency and less noise effect compare with single carrier communication. One of the major MCM technique is orthogonal frequency division multiplexing (OFDM). The Main application of OFDM in wireless communication like WCDMA, LTE Digital Video broadcasting, Digital Audio Broadcasting, Wireless broadband communication and ADSL etc. The main disadvantage of OFDM technique is peak to average power ratio (PAPR). The PAPR reduction is one of the major problem in OFDM. To reduce PAPR there are various algorithms are available like SLM, Coding, and PTS etc. In PTS also different type of algorithms are available. The Adjacent portioning PTS is one of the advanced algorithm which is used for reducing PAPR. Adjacent portioning with Partial transmit sequence (AP-(PTS) aim to reduce the PAPR of OFDM signal. The PTS technique is one of the most promising technique to reduce PAPR. In this paper gives an idea to implement adjacent partition PTS with turbo coding for the better performance of the OFDM. Analysis of PAPR with PTS and without PTS is done and the reduction of PAPR is occurred by using this technique. Analysis of the PAPR reduction by using this technique with turbo coding is done by implementing AP-PTS with turbo coding in Simulink. By using AP-PTS with turbo coding almost 3.5dB PAPR reduction can be achieved.