Results 71 to 80 of about 1,161,847 (184)

A Novel Partial Transmitting Sequence Technique for Peak-to -Average Power Ratio Reduction in Multicarrier Transmission Systems [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2011
As an attractive technique for the reduction of the peak-to-average power ratio (PAPR) of multi-carrier transmission systems is proposed. The conventional partial transmitting sequence (PTS) combining can improve the PAPR statistics of a multi-carrier ...
Ho-Lung Hung
doaj   +1 more source

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

A Desired PAR-Achieving Precoder Design for Multi-User MIMO OFDM based on Concentration of Measure

open access: yes, 2016
For multi-user multiple-input and multiple-output (MIMO) wireless communications in orthogonal frequency di- vision multiplexing systems, we propose a MIMO precoding scheme providing a desired peak-to-average power ratio (PAR) at the minimum cost that is
Cha, Hyun-Su, Kim, Dong Ku
core   +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

Practical Guidelines for Approaching the Implementation of Neural Networks on FPGA for PAPR Reduction in Vehicular Networks

open access: yesSensors, 2018
Nowadays, the sensor community has become wireless, increasing their potential and applications. In particular, these emerging technologies are promising for vehicles’ communications (V2V) to dramatically reduce the number of fatal roadway ...
Abdelhamid Louliej   +3 more
doaj   +1 more source

Crest Factor Reduction in MC-CDMA Employing Carrier Interferometry Codes

open access: yesEURASIP Journal on Wireless Communications and Networking, 2004
This paper addresses signal compactness issues in MC-CDMA employing carrier interferometry codes using the measure of crest factor (CF). Carrier interferometry codes, applied to -carrier MC-CDMA systems, enable users to simultaneously share the system ...
Nassar Carl R, Natarajan Balasubramaniam
doaj   +2 more sources

Interference-Aware PAPR Reduction Scheme to Increase the Energy Efficiency of Large-Scale MIMO-OFDM Systems

open access: yesEnergies, 2017
Large-scale (LS) multi-user (MU) multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) is considered to be a desirable signal transmission scheme because it can significantly improve the energy efficiency (EE) and spectral
Byung Moo Lee, Youngok Kim
doaj   +1 more source

Low Complexity Peak-to-Average Power Ratio Reduction in OFDM-IM

open access: yes2018 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom), 2018
Orthogonal frequency division multiplexing with index modulation (OFDM-IM) employs the indices of the active subcarriers for information transmission, as an alternative to conventional OFDM. It offers high spectral efficiency and high energy efficiency in comparison to OFDM thanks to the information bits conveyed by IM.
Memişoğlu, Ebubekir   +2 more
openaire   +1 more source

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