An Iterative Clipping and Filtering Algorithm for PAPR Reduction in OFDM System

Nasri, A.; Katebi, Mostafa; Toofan, Siroos; Mostafavi, Mohammad

doi:10.1109/iicm57986.2022.10152419

Cited by 1 publication

(1 citation statement)

References 19 publications

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“…In the realm of PAPR reduction methods that leverage the null space in the MIMO channel, the literature introduces two techniques: clipping and filtering (CF) with channel-null constraint (CFCNC) [29,30] and peak cancellation (PC) signal with the channel-null constraint (PCCNC) [31]. In this context, we adopt the CFCNC approach.…”

Section: The Proposed Papr Reduction Methodsmentioning

confidence: 99%

Performance enhancement and PAPR reduction for MIMO based QAM-FBMC systems

Hassan

2024

PLoS ONE

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Filter Bank Multi-Carrier (FBMC) is attracting significant interest as a multi-carrier modulation (MCM) approach for future communication systems. It offers numerous advantages in contrast to Orthogonal Frequency Division Multiplexing (OFDM). Nonetheless, similar to many other MCM techniques, FBMC encounters a significant challenge with a high Peak-to-Average Power Ratio (PAPR). Additionally, incorporating Multiple-Input and Multiple-Output (MIMO) into FBMC presents heightened difficulties due to the presence of complex interference and increased computational complexity. In this paper, we first study the performance analysis of MIMO based Quadrature Amplitude Modulation (QAM)-FBMC systems considering the system complexity and interference. To enhance coverage effectively using beamforming with multiple antennas, it is essential to reduce PAPR to minimize the input backoff (IBO) required by nonlinear power amplifiers. Therefore, we propose new PAPR reduction method for MIMO based QAM-FBMC systems leveraging the null space within the MIMO channel using clipping and filtering (CF) technique. The PAPR reduction signals generated in this process are then mapped to the null space of the overall MIMO channel for each frequency block. Through computer simulations using a nonlinear power amplifier model, we illustrate that the proposed method substantially enhances both PAPR and throughput of MIMO based FBMC systems compared to conventional methods.

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Section: The Proposed Papr Reduction Methodsmentioning

confidence: 99%

Performance enhancement and PAPR reduction for MIMO based QAM-FBMC systems

Hassan

2024

PLoS ONE

View full text Add to dashboard Cite

show abstract

An Iterative Clipping and Filtering Algorithm for PAPR Reduction in OFDM System

Cited by 1 publication

References 19 publications

Performance enhancement and PAPR reduction for MIMO based QAM-FBMC systems

Performance enhancement and PAPR reduction for MIMO based QAM-FBMC systems

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