Results 11 to 20 of about 3,698 (177)

Peak-to-Average-Power-Ratio (PAPR) reduction in WiMAX and OFDM/A systems

open access: yesEURASIP Journal on Advances in Signal Processing, 2011
A peak to average power ratio (PAPR) reduction method is proposed that exploits the precoding or beamforming mode in WiMAX. The method is applicable to any OFDM/A systems that implements beamforming using dedicated pilots which use the same beamforming ...
Svantesson Thomas   +3 more
doaj   +2 more sources

Peak-to-Average Power Ratio Reduction of Carrier-Suppressed Optical SSB Modulation: Performance Comparison of Three Methods

open access: yesPhotonics, 2021
We compare the performances of three previously proposed methods to reduce the peak-to-average power ratio (PAPR) of the carrier-suppressed optical single-sideband (OSSB-SC) signal. PAPR of OSSB-SC signal becomes high due to the peaky Hilbert-transformed
K. I. Amila Sampath   +2 more
doaj   +1 more source

Performance evaluation of PAPR reduction in FBMC system using nonlinear companding transform

open access: yesICT Express, 2019
Filter Bank Multicarrier with Offset Quadrature Amplitude Modulation (FBMC/OQAM) is one of the best waveforms used in 5G communications. The FBMC is a multicarrier modulation system (MCM) which suffers from high peak to average power ratio (PAPR) causing
Imad A. Shaheen   +3 more
doaj   +1 more source

A Low Complexity Partial Transmit Sequence for Peak to Average Power Ratio Reduction in OFDM Systems [PDF]

open access: yesRadioengineering, 2011
Partial transmit sequence (PTS) is one of the most important techniques for reducing the peak to average power ratio (PAPR) in OFDM systems. This paper presents a low complexity PTS scheme by applying a new phase sequence.
P. Varahram, B. M. Ali
doaj   +1 more source

Transmit power imbalance reduction method and nonlinear companding transform for beamforming OFDM systems

open access: yesICT Express, 2019
Due to large peak-to-average power ratio (PAPR) at the time domain OFDM signal, various peak signal reduction methods for OFDM systems have been proposed.
Satoshi Taroda   +4 more
doaj   +1 more source

Impact of radio resource allocation and pulse shaping on PAPR of SC-FDMA signals [PDF]

open access: yes, 2007
"Single Carrier Frequency Division Multiple Access" (SC-FDMA) is a strong candidate for uplink transmissions in the 3G Long Term Evolution (LTE) standard.
Nix, AR   +5 more
core   +1 more source

Low-Complexity Selective Mapping Methods for Multicarrier Faster-Than-Nyquist Signaling

open access: yesIEEE Access, 2020
Multicarrier faster-than-Nyquist (MFTN) signaling is a high spectral efficiency transmission scheme, which is promising in the future communication. One of the major problems of MFTN signaling is high peak-to-average power ratio (PAPR).
Biao Cai, Aijun Liu, Xiaohu Liang
doaj   +1 more source

A Novel Clipping-Based Method to Reduce Peak-To-Average Power Ratio of OFDM Signals

open access: yesInformation, 2020
Orthogonal frequency division multiplexing (OFDM) is a widely used technology for wireless broadband communications. However, it also suffers from some drawbacks.
Bo Tang   +3 more
doaj   +1 more source

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

An intelligent genetic algorithm for PAPR reduction in a multi-carrier CDMA wireless system

open access: yes, 2008
— A novel intelligent genetic algorithm (GA), called Minimum Distance guided GA (MDGA) is proposed for peak-average-power ratio (PAPR) reduction based on partial transmit sequence (PTS) scheme in a synchronous Multi-Carrier Code Division Multiple Access (
Chen, HH   +11 more
core   +1 more source

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