The ANALYSIS OF VARIOUS MEETHODS OF OFDM SYSTEM FOR REDUCTION OF PAPER

Abstract

High peak-to-average power ratio (PAPR) is a major drawback of orthogonal frequency division multiplexing
(OFDM) systems. Among the various PAPR reduction techniques, companding transform appears attractive for its
simplicity and effectiveness. This paper proposes a new companding algorithm. Compared with the others, the
proposed algorithm offers an improved bit error rate and minimized out-of-band interference while reducing PAPR
effectively. The increasing demand on high bit rate and reliable wireless and wire line system has junction rectifier
to several new rising modulation techniques. one among the techniques are going to be Orthogonal Frequency
Division Multiplexing (OFDM), that offers reliable high bit rate wireless system with cheap complexness. the first
reasons OFDM is most popular in most high information measure potency transmission systems ar as a result of it
effectively resist Inter Symbol Interference (ISI) and is powerful towards multipath weakening. This paper describes
the problem of the height to Average Power magnitude relation (PAPR) in OFDM that could be a major downside,
and presents new and variations to existing algorithms to cut back it