Title: Low-complexity PAPR reduction in FBMC/OQAM communication channels using hybrid trellis coded-based SLM with momentum search algorithm

Authors: V. Sudarshani Kataksham; P. Siddaiah

Addresses: Department of Electronics and Communication Engineering, Acharya Nagarjuna University, Guntur, Andhra Pradesh, India ' Department of Electronics and Communication Engineering, Acharya Nagarjuna University, Guntur, Andhra Pradesh, India

Abstract: One of the essential multicarrier modulation methods in the 5G communication system is the Filter Bank Multicarrier (FBMC) based Offset Quadrature Amplitude Modulation (OQAM) (FBMC/OQAM) process. Owing to the overlapping nature of the signal in the FBMC system, traditional Peak to Average Power Ratio (PAPR) reduction approaches are ineffective. Thus, Hybrid Trellis Coded-based Selective Level Mapping (TCSLM) with Momentum Search Algorithm (MSA) in FBMC/OQAM communication channels is proposed in this manuscript. Initially, Hybrid TCSLM is applied to FBMC/OQAM communication channel for reducing the PAPR. Then, to avoid overlapped features and minimises the complexity in the communication channel, the TCSLM parameters are optimised using MSA method. To fulfil the objective of minimum PAPR value, the phase rotation and overlapping factors are optimised by integrating the MSA into TCSLM. Finally, the efficiency of the proposed approach is calculated and it achieves 5.56 dB PAPR reduction, which is better than existing methods.

Keywords: filter bank multicarrier; hybrid trellis coded-based selective level mapping; offset quadrature amplitude modulation; momentum search algorithm.

DOI: 10.1504/IJWMC.2024.137849

International Journal of Wireless and Mobile Computing, 2024 Vol.26 No.3, pp.215 - 228

Received: 15 Dec 2022
Accepted: 12 Sep 2023
Published online: 05 Apr 2024 *

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