Performance Evaluation of Modified SLM Technique in OFDM System Using Selected Codeword Shift

• Published in: MATEC Web of Conferences
• Main Author: Abdullah E.; Idris A.; Saparon A.
• Format: Conference paper
• Language: English
• Published: EDP Sciences 2016
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84987768451&doi=10.1051%2fmatecconf%2f20167506003&partnerID=40&md5=6dbf86bd2c2f6cbc2839a381095d4be7

Selective Mapping (SLM) is a well-known technique used in OFDM System to reduce high Peak-Average Power Ratio (PAPR). High PAPR occurred during signal processing which multiple data are converted into electromagnetic signal via Inverse Fast Fourier transform (IFFT) at the transmitter. Even though SLM technique has a potential to reduce high PAPR, it disrupts the overall performance of bit error rate (BER) at receiver part. In this paper, a modified SLM has been proposed using circulant shift and embedded bit side information to overcome the BER performance degradation at the receiver part as well as to further improve the PAPR performance at the transmitter part. The results have shown an encouraging improvement of PAPR and BER to the OFDM system performance. © 2016 The Authors, published by EDP Sciences.