Beena A.O et al, International Journal of Computer Science and Mobile Computing, ICMIC13, December- 2013, pg. 173-179 © 2013, IJCSMC All Rights Reserved 173 Available Online at www.ijcsmc.com International Journal of Computer Science and Mobile Computing A Monthly Journal of Computer Science and Information Technology ISSN 2320–088X International Conference on Mobility in Computing- ICMiC13, Organized by Mar Baselios College of Engineering and Technology during December 17-18, 2013 at Trivandrum, Kerala, India, pg.173 – 179 SURVEY ARTICLE An Efficient PAPR Reduction Technique for Mobile Terminals Beena A.O 1 , Sakuntala S. Pillai 2 1 LBS Centre for Science & Technology, Trivandrum, India, 2 Mar Baselios College of Engineering & Technology, Trivandrum, Kerala, India 1 aobeena@gmail.com; 2 sakuntala.pillai@gmail.com Abstract— Orthogonal Frequency Division Multiplexing (OFDM) is an efficient method of data transmission for high speed communication systems. In the present era, it has been under intense research for broadband wireless transmission due to its robustness against multi-path fading. The main drawback of OFDM system is the high Peak to Average Power Ratio (PAPR) of the transmitted signals, which reduces the efficiency of transmit high power amplifier. In this paper, a novel scheme, in which a joint partial transmit sequence and clipping method is proposed for PAPR reduction. Simulation results show that the proposed scheme can give significant PAPR reduction while maintaining good performance in the BER. Keywords— Orthogonal Frequency Division Multiplexing (OFDM); Peak to Average Power Ratio (PAPR); Partial Transmit Sequence (PTS); Cumulative Complementary Distribution Function (CCDF); Inverse Fast Fourier Transform (IFFT); Bit Error Rate (BER); Phase Shift Keying (PSK); Clipping. I. INTRODUCTION In recent years, need for high speed data transmission has increased with the rapid growth in digital wireless communication. Multicarrier transmission, like Orthogonal Frequency Division Multiplexing (OFDM) is a technique with a long history [1]–[4] that has recently seen rising popularity in wireless communication. OFDM is used in many applications owing to its robustness to frequency selective fading or narrowband interference, high bandwidth efficiency and efficient implementation. International standards making use of OFDM for high-speed wireless communications are already established or being established by IEEE 802.11, IEEE 802.16, IEEE 802.20, and European Telecommunications Standards Institute (ETSI) Broadcast Radio Access Network (BRAN) committees. Moreover, it is expected to be the standard for the Fourth Generation (4G) cellular system. For wireless applications, an OFDM-based system can be of interest because it provides greater immunity to multipath fading and impulse noise, and eliminates the need for equalizers, while efficient hardware implementation can be realized using fast Fourier transform (FFT) techniques. One of the major drawbacks of multicarrier transmission is the high peak-to-average power ratio (PAPR) of the transmit signal. A large PAPR brings disadvantages like increased