Impact of clipping noise on the sum rate of NOMA with PD-DCO-OFDM and conventional DCO-OFDM [PDF]
Heliyon, 2020 sIn visible light communication (VLC) systems, a non-orthogonal multiple access (NOMA) scheme is deemed promising technology to offer better spectral efficiency than the Orthogonal multiple access (OMA) scheme.
Zelalem Hailu Gebeyehu
doaj +3 more sources
Machine learning for DCO-OFDM based LiFi.
PLoS ONE, 2021 Light fidelity (LiFi) uses different forms of orthogonal frequency division multiplexing (OFDM), including DC biased optical OFDM (DCO-OFDM). In DCO-OFDM, the use of a large DC bias causes optical power inefficiency, while a small bias leads to higher ...
Krishna Saha Purnita +1 more
doaj +3 more sources
Major processes of the dissolved cobalt cycle in the North and equatorial Pacific Ocean [PDF]
Biogeosciences, 2022 Over the past decade, the GEOTRACES and wider trace metal geochemical community has made substantial contributions towards constraining the marine cobalt (Co) cycle and its major biogeochemical processes.
R. Chmiel +11 more
doaj +1 more source
High‐Pressure Transformations and Stability of Ferromagnesite in the Earth's Mantle
Geophysical Monograph Series, Page 105-113., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Eglantine Boulard +2 more
wiley +3 more sources
International Journal of Infectious Diseases, 2022 Objective: Therapy for diabetic foot osteomyelitis (DFO) with Charcot neuroosteoarthropathy is challenging. In patients with diabetic Charcot osteomyelitis (DCO), both the anatomic deformity and infection must be addressed.
Felix WA Waibel +7 more
doaj +1 more source
Reduced exercise tolerance and pulmonary capillary recruitment with remote secondhand smoke exposure. [PDF]
PLoS ONE, 2012 Flight attendants who worked on commercial aircraft before the smoking ban in flights (pre-ban FAs) were exposed to high levels of secondhand smoke (SHS).
Mehrdad Arjomandi +4 more
doaj +1 more source
Technologies, 2021 This paper presents a comparative study between two different implementations of digitally-controlled-oscillators (DCOs), whcih is the DAC-based and the digital controller-based DCO in TSMC 65 nm CMOS technology.
Santthosh Selvaraj +2 more
doaj +1 more source
IEEE Open Journal of the Communications Society, 2020 In this article, a new modulation scheme named Direct Current biased Optical Generalised Frequency Division Multiplexing (DCO-GFDM) for Visible Light Communications (VLC) is explored. The DCO-GFDM enhances spectral efficiency by slicing both grids on the
Vejandla Kishore +3 more
doaj +1 more source
Low cobalt inventories in the Amundsen and Ross seas driven by high demand for labile cobalt uptake among native phytoplankton communities [PDF]
Biogeosciences, 2023 Cobalt (Co) is a scarce but essential micronutrient for marine plankton in the Southern Ocean and coastal Antarctic seas, where dissolved cobalt (dCo) concentrations can be extremely low.
R. J. Chmiel +9 more
doaj +1 more source
Laboratory and space spectroscopy of DCO+ [PDF]
Astronomy & Astrophysics, 2005 The rotational spectra of DCO+ and its two isotopomers D{13}^CO+ and DC{18}^O+, produced in a negative glow discharge cell, have been recorded in the 137-792 GHz region, which includes lines from J=2-1 up to J=11-10. The determined rotational and centrifugal distortion constants allow to predict the DCO+ rotational spectrum up to 1000 GHz with an ...
P. Caselli, DORE, LUCA
openaire +4 more sources