Results 21 to 30 of about 11,641 (207)
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
doaj +1 more source
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
doaj +3 more sources
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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Hantavirus in Dentistry: Occupational Exposure Considerations and a Proposed Tiered Infection Prevention and Control Framework—A Narrative Review [PDF]
Clin Exp Dent ResABSTRACT Objective The aim of this study is to synthesize evidence on hantavirus transmission and occupational exposure pathways relevant to dentistry, and to propose an evidence‐informed tiered infection prevention and control (IPC) framework that distinguishes established from theoretical risk.
Vafaei P +4 more
europepmc +2 more sources
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
doaj +1 more source
Spreading Code Design for a MC-CDMA Based GNSS Pilot Signal [PDF]
, 2010 MC-CDMA can represent an alternative to classical DS-CDMA for the design of GNSS ranging signals. A first requirement MC-CDMA signals must fulfill is that their generation on a satellite payload be feasible.
Meurer, Michael +7 more
core +1 more source
Design of a 900 MHz Dual-Mode SWIPT for Low-Power IoT Devices
Sensors, 2019 This paper presents a duty cycle-based, dual-mode simultaneous wireless information and power transceiver (SWIPT) for Internet of Things (IoT) devices in which a sensor node monitors the received power and adaptively controls the single-tone or multitone
Hamed Abbasizadeh +9 more
doaj +1 more source
Frequency-Selective PAPR Reduction for OFDM [PDF]
IEEE Transactions on Vehicular Technology, 2019 Accepted for publication as a Correspondence in the IEEE Transactions on Vehicular Technology in March 2019.
Selahattin Gökceli +4 more
openaire +4 more sources
PAPR Reduction Scheme for OFDM [PDF]
, 2012 This paper focused on peak to average power ratio (PAPR) reduction scheme for OFDM system. OFDM has several properties which make it an attractive modulation scheme for high speed transmission. the main draw back of OFDM is high PAPR.
Gulhane, Pankaj +2 more
core +1 more source
Sensors, 2021 Several high-speed wireless systems use Orthogonal Frequency Division Multiplexing (OFDM) due to its advantages. 5G has adopted OFDM and is expected to be considered beyond 5G (B5G).
Mohamed Mounir +4 more
doaj +1 more source