PAPR Reduction in OFDM Systems Using Optimization Techniques by SLM, PTSP

Abstract

Communication is one of the most important features of life.With its risingdemands, thegrowth in the field of communication is also increasing. Initially, the signal in the analogdomain was sent but now, signal in the digital domain are being send more. Single-carrier waves are being switched by multicarrier for improved transmission. Multicarrier system like CDMA and OFDM are currently being commonly implemented. In the OFDM system, orthogonally placed sub-carriers are being used to carry the information from the transmitter side to the receiver side. There are  many  problems in  OFDM systems, the problem of ISI and noise can be removed using guard band ,  But the large Peak to average power  ratio  of  these    signal  have  some  undesired effect on the system. In this paper, basic focus is on learning   the   basics   of   an   OFDM   system   and has carry out various methods to reduce the PAPR in the system so that this system can be used more efficiently.

Keywords: OFDM, PAPR, SLM, PTS,