A5091873058- Optical Wireless Communication Technologies
- Advanced Photonic Communication Systems
- Advanced Wireless Communication Technologies
- Impact of Light on Environment and Health
- Semiconductor Lasers and Optical Devices
- Advanced Optical Network Technologies
- Integrated Circuits and Semiconductor Failure Analysis
- solar cell performance optimization
- IoT Networks and Protocols
- Technology-Enhanced Education Studies
- Infrared Target Detection Methodologies
- Flow Measurement and Analysis
- Non-Destructive Testing Techniques
- Food Supply Chain Traceability
- DNA and Biological Computing
- Advancements in Semiconductor Devices and Circuit Design
- Interconnection Networks and Systems
- RFID technology advancements
- Solid State Laser Technologies
- Retinal Imaging and Analysis
- Photorefractive and Nonlinear Optics
- Retinal and Optic Conditions
- Ocular and Laser Science Research
- Advanced Fiber Laser Technologies
- Smart Systems and Machine Learning
Trinity College Dublin
2022-2025
Chandigarh University
2024
Indian Institute of Technology Delhi
2018-2022
Dr. Hari Singh Gour University
2022
Galgotias University
2022
Institute of Engineering
2020
Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology
2019
National Institute of Technology Agartala
2015
Non-orthogonal multiple access (NOMA) is an upcoming technique to boost the capacity of visible light communication (VLC) systems which otherwise limited by slow modulation response light-emitting diode (LED) sources used therein. We propose enhance energy efficiency NOMA-based VLC systems, thereby making them suitable for green Internet things (IoT) in sixth generation (6G) networks. The proposed energy-efficient power allocation (EPA) scheme reduces average bit error rate (ABER) and...
Visible light communication (VLC) is being envisioned as an enabling technology for the physical layer of sixth generation (6G) networks which promises to support massive connectivity requirements Internet things (IoT). Due its ability safely function in areas that are otherwise susceptible electromagnetic interference (e.g., aircraft, hospitals, etc.), VLC a popular candidate intravehicular systems flights, ambulances, etc. However, achievable data rate severely limited by low modulation...
Owing to its several advantages over other wireless schemes, visible light communication (VLC) shall be at the forefront of optical technology. However, due multipath reflections and spatial distribution light-emitting diode (LED) transmitters, there is an inherent delay spread in VLC channels. We perform a comprehensive quantitative study on effect practical factors like LED semi-angle, wall reflectivity, number reflections, panels, room size, user locations channel parameters, namely RMS...
Visible light communication (VLC) is being envisioned as an enabling technology to provide the much-needed spectral relief for ever-increasing demand Internet connectivity and data consumption. Since VLC uses illumination sources lighting well communication, it required dimming control proper enhanced error performance reliable communication. In this paper, we address both these issues holistically. We formulate study power densities of dimming-based modulation schemes, namely variable...
Visible light communication (VLC) is a promising technology that benefits from several advantages over other wireless techniques. However, the capacity of VLC systems limited by low modulation bandwidth light-emitting diodes (LEDs) used as transmitters. To circumvent this bottleneck, non-orthogonal multiple access (NOMA) popularly in systems. due to high inter-user interference at receivers, NOMA suffers poor outage performance, especially if number users large. We propose boost performance...
Indoor positioning systems (IPSs) based on visible light communication (VLC) shall be at the forefront of indoor localization technology in near future. However, existing VLC-based IPSs employ active devices that consume power and are costly. We develop a novel IPS circumvents requirement by using proposed optical identification algorithm, thereby enabling to highly scalable, robust, energy efficient, inexpensive, flexible. To implement this we use wavelength-sensitive receiver whose working...
Abstract Maintenance and monitoring of wind turbines have become a promising challenge for large dimension turbines. Even small damage can result in integrity the system. This paper gives solution using nondestructive SHM technique to recognize damages turbine along with difference properties before after damage. The information obtained from sensor helps robust reading condition blades produces alarm sound at stage severe
Visible light communication (VLC) is an enabling technology which provides ubiquitous indoor wireless access but the capacity of VLC systems severely limited by narrow modulation bandwidth emitting diode (LED) transmitters. Non-orthogonal multiple (NOMA) envisioned to address this challenge circumventing need for spectrum allocation (as in orthogonal schemes) limits number users. We formulate analytical model evaluate total system achievable using NOMA a multiple-input-multiple-output (MIMO)...
Indoor visible light communication (VLC) combines illumination and data transmission, thereby facilitating green sustainable energy solutions. However, due to the diffuse nature of white emitting diodes (LEDs), received optical power is spatially non-uniform which degrades link performance. These spatial variations in can be diminished by using LEDs with larger semi-angle but this increases number wall reflections leading higher losses. Hence average value falls down resulting a trade-off...
Visible light communication (VLC) is undoubtedly a very promising solution to tackle the ever-increasing demand for wireless network traffic. It uses emitting diodes (LEDs), installed illumination, transfer high speed data. The performance of indoor VLC links depends on optical power distribution obtained receiver plane. This paper studies effect semi-angle at half maxima LED transmitters and spatial configuration panels received in links. We show that if reduced, average increases but this...
In the span of ten years have witnessed a revolutionary change in Information Technology and also changed way working for various IT companies. This rapid rise technology has offered better design to explore new teaching model. As matter fact, plays vital role English language & Teaching (ELT). enabled teachers adapt classroom activities, hence enhancing or encouraging learning process. is absolutely necessary each every educated person. It now become minimum criterion placement cell....
This paper proposes a visible light-based positioning (VLP) model for estimating an object's three-dimensional (3-D) parameters such as height and radius, in addition to location indoor environment. The is built using neural networks (NN), trained by simulating numerous multiple-object scenarios It takes into account the shadowing effects so it can be implemented crowded environment with multiple obstacles. proposed algorithm has applications, positioning-assisted communication, suspicious...
We provide a vision for 6G fixed networks based on flexible and scalable high-capacity transmission technologies that form mesh edge to achieve ultra energy-efficient highly available with low latency.These will be controlled by AI-native orchestration across mobile, fixed, compute domains.Mesh networking at the enabled seamless 'confluence' of radio wireless (RFW), free space optical (FSO), switched flex grid wavelength division multiplexed (Flex-WDM) transport using...
In this era of smart and technologically advanced world, we are having plenty devices which can manage our day to tasks. But, lacking in technology case prevention forests wildlife. So, the agenda paper is focusing on such an issue try solve one problems related One several reasons Intruders. Intruders threat wildlife as they indulge into some illegal activities Poaching, Deforestation well trafficking. Detecting those intruders alerting authorize legal officials when enter restricted area...
Research and development of novel wireless access technologies for Internet-of-things (IoT) has lately garnered a lot interest. Against this background, we design wavelength-sensitive tunable receiver architecture that enables remotely-seeded tuning spatially distributed optical sensor units in an IoT network. The is achieved by frequency beating remotely-located laser's signal with the received wavelength-multiplexed from sources like lasers or light emitting diodes (LEDs). This eliminates...
Visible light communication (VLC) is an optical wireless technology in which light-emitting diodes (LEDs) used for illumination are also communication. Due to its numerous advantages, it being actively researched implementation 5G cellular systems. In VLC, signals from transmitter panels can reach the receiver through paths because of reflections walls. Consequently, these suffer time dispersion, thereby imposing upper limit on achievable data rate. This dispersion depends a number factors...
In this paper, we improve the fairness of non-orthogonal multiple access (NOMA) by proposing a power allocation scheme that ensures all users experience same bit error rate (BER) irrespective their channel conditions. We also derive analytical expressions for BER obtained using novel applying it to downlink NOMA-based visible light communication (VLC) system. The numerically simulated results different scenarios match results, thereby validating derived expression. Finally, demonstrate...
Since the financial exchange is volatile and non-linear in nature, prediction a very difficult endeavour. Machine learning artificial neural networks have been used to perform victory variety of areas, as described this paper. It's complicated system which lot people make money or lose money. This generation has technically entered, with investors, analysts, researchers. paper develops support for vector machine that improved evolved. more complex global method conducting business. When...
Dimming support is an essential feature of any practical visible light communication (VLC) system. In this paper, we study the spectral performance two multilevel dimming-based modulation schemes, namely multiple pulse position (MMPM) and overlapping (OPPM). We quantify bandwidth (BW) required by these schemes based on their power densities (PSDs) derived in work. compare different types definitions used to BW requirement determine most precise definition that can be for implementation...