Results 11 to 20 of about 23,872 (186)

Frequency-Selective PAPR Reduction for OFDM [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2019
We study the peak-to-average power ratio (PAPR) problem in orthogonal frequency-division multiplexing (OFDM) systems. In conventional clipping and filtering based PAPR reduction techniques, clipping noise is allowed to spread over the whole active ...
Gökceli, Selahattin   +4 more
core   +7 more sources

PAPR Reduction With Mixed-Numerology OFDM [PDF]

open access: yesIEEE Wireless Communications Letters, 2020
Accepted for publication as a Letter in the IEEE Wireless Communications Letters in September 2019.
Selahattin Gokceli   +5 more
openaire   +3 more sources

PAPR reduction using SLM-PTS-CT hybrid PAPR method for optical NOMA waveform

open access: yesHeliyon, 2023
In this article, we focus on optimising the SLM-PTS-CT (selective mapping, partial transmission sequence, circular transformation) hybrid method for optical non-orthogonal multiple access (O-NOMA) waveforms. The goal is to enhance the spectrum performance and practicality of O-NOMA systems while mitigating the PAPR issue through a hybrid approach.
Arun Kumar   +5 more
openaire   +3 more sources

Proposed Combined PTS with Clipping and Filtering Technique for PAPR Reduction in OFDM System [PDF]

open access: yesEngineering and Technology Journal, 2012
One of the major drawbacks of OFDM is high Peak-to-Average Power Ratio(PAPR) which can result in poor power efficiency and serious distortion in the transmitter amplifier.
Ghanim Abd AL Kareem
doaj   +1 more source

Aegis Mark II Study on Powered Air Purifying Innovation Respirator Efficiency Comparison

open access: yesPhilippine Journal of Orthopaedics, 2023
Introduction. COVID-19, a respiratory droplet-transmitted disease, has claimed approximately 7 million lives worldwide, partly due to a shortage of Personal Protective Equipment (PPEs) needed for prompt patient care. This study was done to assess if the
Hansel Gould Cocjin   +2 more
doaj   +1 more source

Correlative coding with clipping and filtering technique in OFDM Systems [PDF]

open access: yes, 2003
The major setbacks of Orthogonal Frequency Multiplexing (OFDM) is its peak-to-average power ratio (PAPR) and intercarrier interference (ICI). The occurrence of these factors restricts its application.
Fisal, Norsheila, Yusof, S. K.
core   +1 more source

When high PAPR reduction meets CNN: A PRD framework

open access: yesMathematical Biosciences and Engineering, 2021
One of the most important factors limiting the performance of OFDM (Orthogonal Frequency Division Multiplexing) system is high PAPR (Peak to Average Power Ratio).
Yaoqi Yang   +3 more
doaj   +1 more source

Analysis of PAPR in optical OFDM systems with grouped LEDs [PDF]

open access: yes, 2017
The need for multiple transmit chains poses a major challenge in optical orthogonal frequency division multiplexing (OFDM) system utilising grouped light emitting diodes (LEDs) for the purpose of peak-to-average power ratio (PAPR) reduction. Thus, recent
Offiong, Funmilayo B.   +2 more
core   +2 more sources

Exploiting OTFS Frame Structure for PAPR Reduction

open access: yes2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall), 2022
Wireless technologies have always been the cornerstone of industrial progress. However, as industrial technologies have improved and advanced services have emerged, the demands of industry have meant that wireless technologies have had to adapt.
Sumer, Ahmet Sacid   +3 more
openaire   +3 more sources

Evaluation of Clipping and Filtering-Based PAPR Reduction in OFDM System

open access: yesJournal of Electrical, Electronics and Informatics, 2017
This paper investigates clipping and filtering techniques in reducing peak average power ratio (PAPR) of Orthogonal Frequency Division Multiplexing (OFDM) system.
N. M. A. E. D. Wirastuti   +3 more
doaj   +1 more source

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