Title: PAPR reduction in OFDM system using hybrid PTS-RCMN scheme

Authors: Alok Joshi; Shivam Saxena; Sanil Jain

Addresses: Department of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida 201304, India ' Department of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida 201304, India ' Department of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida 201304, India

Abstract: Orthogonal Frequency Division Multiplexing (OFDM) is a widely accepted multi-carrier transmission scheme which is used for high data rate applications like Long-Term Evolution (LTE). It offers higher data transmission rate by efficient bandwidth usage. OFDM offers greater resistance and immunity towards inter-symbol interference (ISI) and Inter-Carrier Interference (ICI). However the major drawback associated with OFDM is high Peak to Average Power Ratio (PAPR) which forces high power amplifier (HPA) to work in the non-linear region resulting in harmonic distortions in the output. Partial transmit sequence (PTS) is a widely employed and tested method for PAPR reduction in 4G systems. In this paper we have proposed a novel scheme which uses a combination of PTS and Reduced Complexity Maximum Norm (RCMN) method to improve PAPR reduction performance of PTS system. This scheme has effectively reduced PAPR as compared to conventional PTS technique with insignificant increase in computational complexity.

Keywords: OFDM; orthogonal frequency division multiplexing; PTS; partial transmit sequence; RCMN; reduced complexity maximum norm; PAPR; peak to average power ratio.

DOI: 10.1504/IJWMC.2017.087352

International Journal of Wireless and Mobile Computing, 2017 Vol.13 No.1, pp.15 - 22

Received: 26 Sep 2016
Accepted: 03 Apr 2017

Published online: 03 Oct 2017 *

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