Title: PAPR reduction of MIMO-OFDM using galaxy inspired swarm-based PTS strategy

Authors: Rajat Chauhan; Neetu Sood; Indu Saini

Addresses: Department of Electronics and Communication, Dr. B.R. Ambedkar, National Institute of Engineering, Jalandhar PIN – 144011, Punjab, India ' Department of Electronics and Communication, Dr. B.R. Ambedkar, National Institute of Engineering, Jalandhar PIN – 144011, Punjab, India ' Department of Electronics and Communication, Dr. B.R. Ambedkar, National Institute of Engineering, Jalandhar PIN – 144011, Punjab, India

Abstract: Multiple-input-multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) is a striking scheme, which has procured noteworthy importance as an auspicious contender for not only 4th generation but 5th generation wireless communication also. However, the mountainous problem regarding MIMO-OFDM is its considerably high peak to average power ratio (PAPR). In this literature, partial transmit sequence (PTS) mechanism is instigated on MIMO-OFDM system. Its effectiveness verification is displayed with assorted simulation results. Results reveals that PTS strategy not only refine but boost the potential of the MIMO-OFDM-based system, moreover, it has hitherto been indicated that with rise in sub-blocks, that are mostly non-overlapping, PAPR performance enhances. Further, the phase factors of MIMO-OFDM-based system are optimised by evolutionary techniques which drives its inspiration from galaxies called galaxy inspired swarm-based optimisation (GSO).

Keywords: multi carrier modulation; MCM; galaxy inspired swarm-based optimisation; GSO; peak to average power ratio; PAPR.

DOI: 10.1504/IJSCC.2021.113243

International Journal of Systems, Control and Communications, 2021 Vol.12 No.1, pp.72 - 89

Received: 07 Sep 2019
Accepted: 25 Mar 2020
Published online: 25 Feb 2021 *

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