Results 31 to 40 of about 255,843 (158)

Controlling Peak-to-Average Power Ratio in Orthogonal Frequency Division Multiplexing System

open access: yesJournal of Engineering and Sustainable Development, 2013
A major drawback of Orthogonal Frequency Division Multiplexing at the transmitter side is the high peak-to-average power ratio (PAPR) of the signal. Conventional solutions for this problem are to use a linear amplifier ( or to back-off the operating ...
Ismail Sh. Baqir
doaj  

Partial Transmit Sequences for Peak-to-Average Power Ratio Reduction in Multiantenna OFDM

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
The major drawback of orthogonal frequency-division multiplexing (OFDM) is its high peak-to-average power ratio (PAR), which gets even more substantial if a transmitter with multiple antennas is considered.
Siegl Christian, Fischer RobertFH
doaj  

PEAK-TO-AVERAGE POWER RATIO REDUCTION USING CODING AND HYBRID TECHNIQUES FOR OFDM SYSTEM [PDF]

open access: yesICTACT Journal on Communication Technology, 2016
In this article, the research work investigated is based on an error correction coding techniques are used to reduce the undesirable Peak-to-Average Power Ratio (PAPR) quantity.
Bahubali K. Shiragapur, Uday Wali
doaj  

Peak-to-Average Power Ratio of Multicarrier Faster-Than-Nyquist Signals: Distribution, Optimization and Reduction

open access: yesIEEE Access, 2018
Multicarrier faster-than-Nyquist (MFTN) is a spectral efficient transmission scheme for future communication systems. However, as one of the most important drawbacks of multicarrier transmission systems, the peak-to-average power ratio (PAPR) of MFTN ...
Aijun Liu   +5 more
doaj   +1 more source

Constrained RS coding for Low Peak to Average Power Ratio in FBMC - OQAM Systems [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2019
Multi-carrier modulation techniques have now become a standard in many communication protocols. Filter bank based multi-carrier (FBMC) generation techniques have been discussed in the literature as a means for overcoming the shortcomings of IFFT/FFT ...
Job CHUNKATH   +2 more
doaj  

Piecewise-linear companding transform for peak-to-average power ratio reduction of OFDM signals

open access: yesTongxin xuebao, 2011
In order to reduce the peak-to-average power ratio(PAPR) of orthogonal frequency division multiplexing(OFDM) signals,a piecewise-linear companding transform was proposed.Small amplitudes were multiplied by a scale factor,while large ones were not only ...
YANG Pin-lu, HU Ai-qun
doaj   +2 more sources

Distributed Precoding for BER Minimization With PAPR Constraint in Uplink Massive MIMO Systems

open access: yesIEEE Access, 2018
Precoding can effectively reduce the peak-to-average power ratio (PAPR) of the transmitted waveform but will usually degrade the bit error rate (BER) performance.
Wei Peng   +4 more
doaj   +1 more source

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  

Genetic Algorithm Based Bilayer PTS Scheme for Peak-to-Average Power Ratio Reduction of FBMC/OQAM Signal

open access: yesIEEE Access, 2020
Partial transmit sequence (PTS) scheme has been well applied to reduce the high peak-to-average power ratio (PAPR) of the orthogonal frequency division multiplexing (OFDM) signal.
Siying Lv   +3 more
doaj   +1 more source

Design of a digital comb spectrum module with low peak to average power ratio

open access: yesDianzi Jishu Yingyong
In order to improve the calibration efficiency of inter-channel error of multi-channel receiver,a digital comb spectrum calibration source module with low peak to average power ratio(PAPR) is designed and implemented. This module is based on the hardware
Mi Zhihe, Zheng Hongbin
doaj   +1 more source

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