Review paper onPerformance of OFDM system based on PAPR

Abstract

Communication is most important requirement of life in these days. There is a tremendous growth in the field
of communications. For more effective signal transmission system, single carrier signals are modified as multi-carriers
signals. CDMA[1] (Code Division Multiplexing Access) and OFDM are these days being executing repeatedly. Applying
of guard band in the signals cover the issue of ISI (Inter symbol interference) and noise signal is reduced by large
number of subcarrier signals. But the large number of (PAPR) Peak to Average Power Ratio related to those signals has
some unpleasant reactions on the communication system.In this paper we analyzed the PAPR reduction performance of
the OFDM system using different techniques like SLM[2], PTS[3], Clipping[4],analysis shows that clipping method
shows good PAPR reduction with respect to simplicity to implement. But this comes at the cost of significant amount of
BER degradation.