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- Title
Repeated Clipping Filtering with Nonlinear Companding for PAPR Reduction in MIMO FBMC/OQAM System.
- Authors
Boudjelkha, Ammar; Khelil, Abdellatif; Merah, Hocine
- Abstract
Multi-carrier modulation (MCM) is one of the fundamental components of beyond 5G (B5G) and 6G that meets the many requirements of contemporary use cases. Filter bank multi-carrier with offset quadrature amplitude modulation (FBCM/OQAM) is one of the most promising modulation that offers many benefits to the next generation. However, like all MCM modulations, it shows a high peak signal in the time domain, which causes in-band (IB) and out-of-band (OOB) distortions in the amplifier output signal. The present paper suggests that an FBMC/OQAM system with multi-input multi-output (MIMO) employs a new hybridization that combines repeated clipping filtering (RCF) with several companding techniques, including A-Law, Mu-Law, tangente rooting (tanhR), logarithmic rooting (logR), cos and rooting companding (RTC). The combination of RCF and Mu-Law yields the best results of peak-to-average power ratio (PAPR) reduction and bit error rate (BER). The simulation results showed a significant decrease in PAPR, with a reduction of 68.54% compared to the original signal without the reduction technique.
- Publication
International Journal of Intelligent Engineering & Systems, 2023, Vol 16, Issue 4, p630
- ISSN
2185-310X
- Publication type
Academic Journal
- DOI
10.22266/ijies2023.0831.51