Results 21 to 30 of about 9,472 (221)

Peak to Average Power Ratio Reduction in OFDM Using Pulse Shaping Technique [PDF]

open access: yes, 2016
Orthogonal Frequency Division Multiplexing (OFDM) is a special type of multicarrier modulation in which a signal is split into several narrowband channels at different frequencies.
Das, Diptadeep
core   +4 more sources

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

Adaptive Tone Reservation for better BER Performance in a Frequency Selective Fading Channel [PDF]

open access: yes, 2016
International audienceMulticarrier modulation systems suffer from large peak-to-average power ratio (PAPR). Tone reservation is a popular technique for PAPR reduction.
Bader, Faouzi   +4 more
core   +4 more sources

Peak to average power ratio reduction in NC–OFDM systems [PDF]

open access: yes, 2015
Non contiguous orthogonal frequency division multiplexing (NC-OFDM) is an efficient and adaptable multicarrier modulation scheme to be used in cognitive radio communications.
Ghafoor, Abdul   +2 more
core   +1 more source

Time reversal seismic source imaging using peak average power ratio (PAPR) parameter [PDF]

open access: yesActa Geophysica, 2017
The time reversal method has become a standard technique for the location of seismic sources. It has been used both for acoustic and elastic numerical modelling and for 2D and 3D propagation models. Although there are many studies concerning its application to point sources, little so far has been done to generalise the time reversal method to the ...
Anna Franczyk   +2 more
openaire   +1 more source

Reducing peak to average power ratio (PAPR) of OFDM systems using complex BIFORE precoding transform

open access: yesIOP Conference Series: Materials Science and Engineering, 2021
Abstract Due to its valuable features, orthogonal frequency division multiplexing (OFDM) is utilized extensively with the modern communication systems. In despite, such employment is impacted with some drawbacks that has been received a great interest in the recent studies.
Mohanad A. Saleh   +2 more
openaire   +1 more source

Frequency-Selective PAPR Reduction for OFDM [PDF]

open access: yes, 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   +3 more sources

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

Low Complexity Partial Transmit Sequence with Complex Gain Memory Predistortion in OFDM Systems. [PDF]

open access: yes, 2012
In this paper the peak to average power ratio (PAPR) reduction and digital predistortion effects in orthogonal frequency division multiplexing (OFDM) systems are investigated. By applying a predistortion technique called complex gain memory predistortion
Mohd Ali, Borhanuddin, Varahram, Pooria
core   +1 more source

Peak-to-average power ratio of good codes for Gaussian channel [PDF]

open access: yes, 2014
Consider a problem of forward error-correction for the additive white Gaussian noise (AWGN) channel. For finite blocklength codes the backoff from the channel capacity is inversely proportional to the square root of the blocklength.
Polyanskiy, Yury, Wu, Yihong
core   +2 more sources

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