Deep learning for PAPR reduction in OFDM system

OFDM PAPR reduction simulator using SLM and PTS

concept of PAPR of OFDM and how to decrease PAPR

A Peak to Average Power Ratio (PAPR) Reduction method for OFDM Systems using neural networks using the encoder-decoder approach. [Course project for EEE 6207 Broadband Wireless Communication MSc 2019]

This repository contains a MATLAB code comparing a conventional OFDM implementation and a modified OFDM system that uses Selective Mapping Techniques to reduce Peak to Average Power Ratio PAPR

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k-Modular Quadratic Programming Algorithm for PAPR in MIMO OFDM

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The single carrier multiple access scheme (SC-FDMA) is a novel method of radio transmission currently used in long term evolution (LTE) technology for uplink due to its high spectral efficiency with low bit error rate and lower peak-to-average power-ratio (PAPR) as compared to OFDM technique. Matlab simulation has been carried out to obtain PAPR performance of SC-FDMA and OFDMA techniques with different numbers of subcarriers. Two different approaches of assigning subcarriers have been assumed, distributed FDMA (DFDMA) and localized FDMA (LFDMA). Interleaved FDMA (IFDMA) is a special case of DFDMA where distribution of DFT outputs have been done uniformly with equal distance.. Comparing the forms of SC-FDMA, we find that interleaved (FDMA) has lower PAPR than localised (FDMA). We also discuss the SER (Symbol Error Rate) performance of both LFDMA and IFDMA schemes and find that the SER performance of localised (FDMA) is better than interleaved (IFDMA) technique.

Clipping vs weighted OFDM for PAPR reduction

The main objective was to Peak To Average Power Ratio (PAPR) Reduction In OFDM Based on 4G/5G Signals

Modelled OFDM transmitter and Receiver using GNU Radio, Tx of and Rx of OFDM signal using HackRf SDR. Analyzed PAPR and frequency selectivity effects by varying FFT size, and mitigation of ISI by varying Cyclic Prefix.

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PAPR REDUCTION, OFDM, ALTERNATIVE SIGNAL METHOD

Thesis submitted "OFDM PAPR Reduction Using Hybrid Partial Transmit Sequences Based On CUCKOO SEARCH ALGORITHM"

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In this work, various high PAPR reduction techniques were evaluated under different fading channel conditions, specifically Rayleigh, Rician, and Nakagami channels. The primary objective was to assess the effectiveness of these techniques in mitigating the effects of high PAPR in OFDM systems.

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计算FDMA和SCFDMA的峰均比

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Wang, Xin, et al. “A Model-Driven DL Algorithm for PAPR Reduction in OFDM System.” IEEE Communications Letters, vol. 25, no. 7, 2021, pp. 2270–2274.

PRNet for reducing PAPR of OFDM system

study the effects of PAPR on OFDM signal in transmission over differents channel

Generate a low-PAPR all-pilot OFDM symbol for channel sounding

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Orthogonal frequency division multiplexing (OFDM) is still the most commonly employed technology in fifth-generation (5 G) new radio (NR) uplinks because of its great spectral efficiency. However, its main drawback is a high Peak-to-Average Power Ratio (PAPR).

Benchmarked 5G uplink waveforms, demonstrating a 9 dB PAPR reduction with DFT-s-OFDM to enhance power amplifier efficiency and extend battery life for mobile devices and Modeled 5G’s flexible numerology, quantifying an 87% reduction in slot latency using 120 kHz subcarrier spacing to enable ultra-reliable low-latency communication (URLLC)

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PAPR Reduction and Bit Error Rate Evaluation in OFDM System using Hybrid Techniques