A Novel Combined Method for PAPR Reduction and BER Enhancement in OFDM

Veena Gopinath, Sudhi Sudharman

Abstract: Orthogonal Frequency Division Multiplexing (OFDM) being a multi-carrier transmission, is one of the most superior technologies in wireless communication. In this paper, a brief overview of an OFDM system is explained. High Peak-to-Average Power Ratio (PAPR) is the major issue associated with an OFDM system, so a novel Partial Transmit Sequence (PTS) technique is proposed for PAPR reduction. The data rate of a typical OFDM communication system is also derived provided bandwidth is assumed to be of 5 kHz. It is obvious from the simulation results that PTS is the better method for PAPR reduction and BER enhancement in comparison with clipping and weighted OFDM.

Keywords: BER, OFDM, PAPR, PTS, SNR