Results 11 to 20 of about 4,010 (182)
Canadian Journal of Respiratory Therapy, 2014 The current outbreak of Ebola virus in West Africa has prompted clinicians and health care workers to revisit the issue of infection prevention and control procedures, especially with regard to personal protective equipment (PPE).
Vanessa Roberts
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Precoding for PAPR Reduction in UW-OFDM [PDF]
IEEE Communications Letters, 2021 Unique Word Orthogonal Frequency Division multiplexing (UW-OFDM) is a variant of the multicarrier technique that has shown better bit error performance compared to cyclic prefixed (CP-)OFDM. Like other multicarrier techniques, UW-OFDM suffers from the high peak-to-average-power ratio (PAPR) problem, which is an obstacle ahead of practical ...
Morteza Rajabzadeh, Heidi Steendam
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Distributions of upper PAPR and lower PAPR of OFDM signals in visible light communications [PDF]
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014 acceptted by IEEE ICASSP 2014.
Zhenhua Yu 0003 +2 more
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PAPR Reduction With Mixed-Numerology OFDM [PDF]
IEEE Wireless Communications Letters, 2020 Accepted for publication as a Letter in the IEEE Wireless Communications Letters in September 2019.
Selahattin Gökceli +5 more
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Aegis Mark II Study on Powered Air Purifying Innovation Respirator Efficiency Comparison
Philippine Journal of Orthopaedics, 2023 Introduction. COVID-19, a respiratory droplet-transmitted disease, has claimed approximately 7 million lives worldwide, partly due to a shortage of Personal Protective Equipment (PPEs) needed for prompt patient care. This study was done to assess if the
Hansel Gould Cocjin +2 more
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CLIPPING TECHNIQUES FOR PAPR REDUCTION IN FBMC/OQAM SYSTEM OVER DOUBLY-SELECTIVE CHANNELS
Journal of Engineering and Sustainable Development, 2021 One of the major disadvantages of Filter Bank Multicarrier (FBMC) is high Peak-to-Average Power Ratio (PAPR) of transmitted signal. As a result, nonlinear power amplifier (PA) properties, considerable out-of-band and the in-band distortion types take ...
Noor Q. Lateef, Fadhil S. Hasan
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Evaluation of Clipping and Filtering-Based PAPR Reduction in OFDM System
Journal of Electrical, Electronics and Informatics, 2017 This paper investigates clipping and filtering techniques in reducing peak average power ratio (PAPR) of Orthogonal Frequency Division Multiplexing (OFDM) system.
N. M. A. E. D. Wirastuti +3 more
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PAPR Distribution Analysis at the Output of Nonlinear PAPR Reducers
Journal of Signal and Information Processing, 2012 Nonlinear PAPR reducers, such as clipping and companding techniques, are some simple methods used to reduce the Peak-to-Average Power Ratio (PAPR). In this paper, assuming that the baseband OFDM signal is characterized as a bandlimited complex Gaussian process, we investigate the PAPR distribution of an OFDM signal when it is passed through a nonlinear
Guel, Désiré, Palicot, Jacques
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Information, 2019 Orthogonal frequency division multiplexing (OFDM) has become an indispensable part of waveform generation in wideband digital communication since its first appearance in digital audio broadcasting (DAB) in Europe in 1980s, and it is indeed in use. As has
Somayeh Mohammady +3 more
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Analysis of Hybrid PAPR Reduction Methods of OFDM Signal for HPA Models in Wireless Communications
IEEE Access, 2020 Orthogonal Frequency Division Multiplexing (OFDM) suffers from a high Peak-to-Average Power Ratio (PAPR). Designing a High Power Amplifier (HPA) with high PAPR is not a wise technique as it roots the amplifier to operate in a non-linear region which is ...
Sravanti Thota +2 more
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