Prakash Kannan Loganathan

Bio: Prakash Kannan Loganathan is an academic researcher from James Cook University Hospital. The author has contributed to research in topics: Visible light communication & Optical fiber. The author has an hindex of 1, co-authored 3 publications receiving 3 citations.

Light-Fidelity (Li-Fi) Technology : A Review

Abstract: Li-Fi stands for Light-Fidelity, for the fast increasing gadgets and to improve more effective use of lights a new technology is developed which is calledLIFI. Li-Fi is a modern technology which is used in progression with WIFI technology. LIFI uses LED lights which helps in faster and flexible data transfer transmitted through Wi-Fi. As light is everywhere, using light as the transmission medium Li-Fi can provide wireless indoor communication. The data transfer through LIFI is in bits and is much faster than Wi-Fi. Dr. Herald Haas, the professor of mobile communications at the University of Edinburgh, UK, first time publically displayed the proof of Light Fidelity (Li-Fi), a method of Visible Light communication (VLC). Li-Fi is the transfer of data through light by taking fiber out of fiber optics and sending data through LED light. Keywords-Li-Fi, Wi-Fi, LED Lights, Wireless, VLC, Bits and Fiber optics.

Do continuous vancomycin infusions achieve therapeutic target levels more often than intermittent dosing in neonates

Abstract: A 13-day-old baby born at a gestational age of 26 weeks in the neonatal intensive care unit is noted to have an increasing oxygen requirement, frequent apnoeas and to develop temperature instability. You note that she has had a central line in situ for 12 days for feeding intolerance and parenteral nutrition. Central line sepsis is considered as one of the differential diagnoses and your unit policy is to use vancomycin to treat this. You wonder whether to use an intermittent dosing regimen or a continuous infusion of vancomycin. In a neonate with suspected or confirmed sepsis (patient), does a continuous vancomycin dosing regimen (intervention) compared with an intermittent dosing regimen (comparison) achieve therapeutic levels (outcome) more frequently without an increase in side effects? A literature search was performed in EMBASE, Cumulative Index to Nursing and Allied Health Literature and MEDLINE databases, from inception to February 2019. Included were all studies with a neonatal population that provided a comparison between intermittent and continuous regimen of vancomycin with the primary outcome of achieving target levels. The keywords used were vancomycin, dosing, levels, intermittent, continuous and neonate. All 36 citations were screened by title and abstract. If the …

Comparison of volume guarantee and volume-controlled ventilation both using closed loop inspired oxygen in preterm infants: a randomised crossover study (CLIO-VG study).

Abstract: Objective The objective of this study was to compare two different modes of ventilation in maintaining oxygen saturation (SpO2) in target range (90%–95%) in ventilated preterm infants cared for with automatic control of oxygen delivery (A-FiO2). Design A single-centre randomised crossover study. Settings A level III neonatal intensive care unit. Patients Preterm infants receiving mechanical ventilation and oxygen requirement >21%. Interventions Volume guarantee (VG) vs volume controlled ventilation (VCV) modes with automatic oxygen control (A-FiO2). Outcomes The primary outcome of this study was the proportion of time spent with oxygen saturations in the target range (90%–95%) . Results Nineteen preterm infants with a median gestation age 25 weeks (IQR: 24–28) and birth weight 685 g (IQR: 595–980) were enrolled in the study. There was no significant difference in primary outcome of median proportion of time spent in target saturation between the two arms (72% (57–81) in VG vs 75% (58–83) in VCV; p=0.98). There was no significant difference in the secondary outcomes of time spent in SpO2 98% (0.50% vs 0.08%; p=0.54), the median FiO2 (31% vs 29%; p=0.51) or manual adjustments carried out between VG and VCV, respectively. The number of episodes of prolonged hypoxaemia and hyperoxaemia were similar in the two groups. Conclusion There was no significant difference in time spent in target SpO2 range between VG and VCV when A-FiO2 was used as the FiO2 controller in this crossover randomised control study. Trial registration number NCT03865069.

Toward Designing a Li-Fi-Based Hierarchical IoT Architecture

Abstract: Current wireless communication technologies, such as wireless-fidelity (Wi-Fi) and Bluetooth, use radio waves as the basic medium in transferring information. Even though these technologies are widely spread, the need of exploring alternatives to transmit data wirelessly and more efficiently is a must. The reason behind that relies on the current limitations of the radio frequency (RF) band, which include overcrowding and interference with other RF applications. To explore alternatives, much research has been conducted to prove the possibility of using visible light as a wireless medium for transferring data. As a result, a new technology was presented by a German physicist Harald Haas, called light-fidelity (Li-Fi), which is a wireless technology that utilizes visible light as a communication medium instead of using the basic radio wave. Recently, Li-Fi technology has attracted the research community. Various studies have been conducted to improve the technology. However, there is still a noticeable need to support the research field due to the modernity of the technology. Hence, this paper presents an extensive survey of the previous studies and projects conducted on the technology, besides multiple leading companies working on the manufacture of Li-Fi-compatible products. In addition, a Li-Fi-based IoT architecture is proposed in this paper, which relies on the collection of data from multiple environments, where Li-Fi is installed. Li-Fi-generated data are analyzed and processed to make intelligent decisions to enhance services in many sectors.

Analysis of illumination properties of LED sources used in Li-Fi communication

Abstract: In this proceeding, sources used in Li-fi communication systems, generally, LEDs are analysed in terms of illumination parameters. This is an important area of research since apart from communication aspect the sources and detector characteristics will ensure seamless communication between the transmitter and receiver. Simulations are provided for proposed Li-fi communication system and results are analysed in terms of suitable detectors.