Results 31 to 40 of about 9,472 (221)

Peak shrinking and interpolating for PAPR reduction in M-IFoF-based mobile fronthaul

open access: yesDigital Communications and Networks, 2022
We apply a Peak Shrinking and Interpolating (PSI) scheme to improve the Peak-to-Average Power Ratio (PAPR) performance in Multiple Intermediate-Frequency-over-Fiber (M-IFoF) based mobile fronthaul.
Luping Qin, Haibo Li, Da Chen, Tao Jiang
doaj   +1 more source

Power savings analysis of clipping and filtering method in OFDM systems [PDF]

open access: yes, 2008
The clipping and filtering method is analyzed in terms of power savings. The analysis takes account of the gain in the amplifier efficiency due to peak-to-average-power-ratio (PAPR) reduction.
Al-Qahtani, F   +3 more
core   +1 more source

Peak-to-average power ratio reduction in OFDM systems using smoothing technique [PDF]

open access: yes, 2009
This paper presents a new peak-to-average power ratio (PAPR) reduction technique by smoothing the power components of OFDM signals. The smoothing technique only adds a simple process to the existing OFDM signal processing.
Al-Azzo, Wisam F.   +4 more
core   +1 more source

A Novel Companding Technique to Reduce High Peak to Average Power Ratio in OFDM Systems

open access: yesIEEE Access, 2021
The reduction of the high peak-to-average-power ratio (PAPR) is important to the efficiency of the orthogonal frequency division multiplexing (OFDM) technique.
Abdulwahid Mohammed   +3 more
doaj   +1 more source

Distributions of Upper PAPR and Lower PAPR of OFDM Signals in Visible Light Communications

open access: yes, 2014
Orthogonal frequency-division multiplexing (OFDM) in visible light communications (VLC) inherits the disadvantage of high peak-to-average power ratio (PAPR) from OFDM in radio frequency (RF) communications.
Baxley, Robert J.   +2 more
core   +1 more source

Closed-form Approximations of the PAPR Distribution for Multi-Carrier Modulation Systems [PDF]

open access: yes, 2014
International audienceThe theoretical analysis of the Peak-to-Average Power Ratio (PAPR) distribution for an Orthogonal Frequency Division Multiplexing (OFDM) system, depends on the particular waveform considered in the modulation system.
Chafii, Marwa   +2 more
core   +3 more sources

A new PAPR reduction in OFDM systems using PTS combined with APPR for TWTA nonlinear HPA [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2008
In this paper, we propose a new Peak-to-Average Power Ratio (PAPR) reduction technique using a partial transmit sequence (PTS) combined with adaptive peak power reduction (APPR) methods.
Chusit Pradabpet, Kobchai Dejhan
doaj  

Performance and Implementation Evaluation of TR PAPR Reduction Methods for DVB-T2

open access: yesInternational Journal of Digital Multimedia Broadcasting, 2010
High Peak to Average Power Ratio (PAPR) is a critical issue in multicarrier communication systems using Orthogonal Frequency Division Multiplexing (OFDM), as in the Second Generation Terrestrial Digital Video Broadcasting (DVB-T2) system.
Mohamad Mroué   +4 more
doaj   +1 more source

PAPR reduction in LTE network using both peak windowing and clipping techniques

open access: yesJournal of Electrical Systems and Information Technology, 2019
Multicarrier technique orthogonal frequency division multiplexing (OFDM) modulation is a solution to provide high-speed and secured data transmission requirement in 4G technologies. Peak-to-average power ratio (PAPR) is one major drawback in OFDM system.
Richard Musabe   +5 more
doaj   +1 more source

Compressive sensing based PAPR reduction in OFDM systems: Modified orthogonal matching pursuit approach

open access: yesICT Express, 2020
Orthogonal frequency division multiplexing (OFDM) has been proposed to achieve high data rate transmission in wireless communications. The OFDM system usually suffers from the high envelope fluctuations called peak-to-average power ratio (PAPR). The high
Ghanbar Azarnia   +2 more
doaj   +1 more source

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