Title: PAPR Reduction of OFDM Signal with SPS-SLM Technique and Analysis of BER Performance through AWGN Channel

Issue Number: Vol. 7, No. 4
Year of Publication: Dec - 2017
Page Numbers: 215-222
Authors: Md. Salim Raza, Md. Shahjahan Ali
Journal Name: International Journal of Digital Information and Wireless Communications (IJDIWC)
- Hong Kong
DOI:  http://dx.doi.org/10.17781/P002390

Abstract:


Orthogonal Frequency Division Multiplexing (OFDM) has been currently under intense research for broadband wireless transmission due to its robustness against multipath fading. However, implementation of the OFDM system entails several difficulties. One of the major drawbacks is high Peak-to-Average Power Ratio (PAPR) which leads to increase Bit Error Rate (BER) due to the nonlinearity of the high power amplifier. The Selected Mapping Technique (SLM) is one of the most popular techniques to reduce PAPR of OFDM signal. With SLM Technique, side information bits are required to recover original data, which lead to increase the rate of data loss. In this paper, a specific set of sequential phase sequence (SPS) has been developed to perform SLM technique along OFDM transceiver without requiring side information. The SPS based SLM (SPS-SLM) technique is able to reduce almost same PAPR compared to the conventional SLM technique. Moreover, the BER performance has been studied considering different number of subcarriers as well as modulation orders