Low-complexity PAPR reduction in FBMC/OQAM communication channels using hybrid trellis coded-based SLM with momentum search algorithm
by V. Sudarshani Kataksham; P. Siddaiah
International Journal of Wireless and Mobile Computing (IJWMC), Vol. 26, No. 3, 2024

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.

Online publication date: Fri, 05-Apr-2024

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