Implementation of Energy Efficient Light Fidelity Transceiver using Solar Panel

In this era of advanced science, a number of wireless connections are available to connect to the internet. Li-Fi known as light fidelity works on the principle of visible light communication. This technology can be compared with that of Wi-Fi and offers advantages like increased accessible spectrum

Project Title

Implementation of Energy Efficient Light Fidelity Transceiver using Solar Panel

Project Area of Specialization

Internet of Things

Project Summary

In this era of advanced science, a number of wireless connections are available to connect to the internet. Li-Fi known as light fidelity works on the principle of visible light communication. This technology can be compared with that of Wi-Fi and offers advantages like increased accessible spectrum, efficiency, security, low latency and much high speed. This project aims to develop a device which will be based on light fidelity technology which will transmit and receive data through fast flickering of LED lights. We will be designing a Li-Fi Bi-directional Communication module (transceiver), which will communicate using optical modulation schemes and amplifiers will be used to retrieve high intensity output so that it can used in a public environment and with different devices.  

The concept of Li-fi is currently enticing a great deal of interest, not least because it offers an unpretentious and very efficient alternative to RF. The extensive growth in the use of LEDs for illumination indeed provides the opportunity to integrate the technology into a plethora of environments and applications. Li-Fi offers advantages like increased accessible spectrum, efficiency, security and low latency. VLC technology delivers bi-directional, high speed, networked mobile communication by using LEDs. It is of high order of Gbps. It supports multi-user access

Project Objectives

Our main objective is to achieve bidirectional communication using Li-Fi technology in a point to point communication and high data rate as compared to Wi-Fi. Security is also our objective since light cannot pass through opaque structures, Li-Fi is available only to the users within a confined area and cannot be intercepted and misused, outside the area under operation.

Project Implementation Method

Li-Fi is based on Visual Light Communication (VLC) that using light emitting diodes (LEDs) to fully networked wireless system. A solar panel, on the other hand, can easily recognize SCM modulation. Solar panels absorb light as a source of energy to generate electricity. This simple principle makes possible visible-light communication technology that supports both illumination and wireless communication using LED. This will discuss about the architecture, all SCM modulation schemes, performance, and the challenges. We will use microprocessor or Arduino to modulate the intensity of LEDs by appropriate modulation scheme. In our project we will first convert the data file to be transferred into a binary stream of 0’s and 1’s which is fed into the Li-Fi TX hardware which transmits this data after modulating through light. Intensity of light is modulated. We set a high threshold voltage as on state and a low threshold voltage as off state. Whenever the LED is in on state it transmits a 1 and when it is in off state it transmits a 0. The switching transistor is capable of toggling the state of led in nanoseconds which increases the speed of transmission to some extent. Photo detectors will be used as the sensors which will sense the modulated light. The Li-Fi RX after sensing and demodulating the binary stream sends it to the system where the original data file is retrieved.

Benefits of the Project

• By implementing this technology complexity of wires in a local area network and density of users in wi-fi networks will be removed

• We can use a series of li-fi transceivers from data centers to the required users

• It will decrease the cost of wired networking and its complexity.

• The enabling of the Internet-of-Things (100 times more devices)
• Enhanced wireless infrastructures by providing an additional layer of small cells (‘atto-cells’)
• The avoidance of the radio frequency spectrum crunch (10,000 times more capacity)
• Enabling very high peak data rates (10 Gbps)
• Significantly enhanced secure wireless communication (reduced interception of signals)
• Enhanced energy-efficiency by combining data communication and illumination (100 times energy reduction)
• Complete elimination of health concerns

Technical Details of Final Deliverable

The prime milestone of this project is to develop a device which can eliminate the problem of limited bandwidth and complexity in network traffic. The device will be based on light fidelity technology which will transmit and receive data through fast flickering of LED lights the Li-Fi framework comprises of basically two sections, the transmitter and the receiver. Driven light is utilized as signal source between two ends. Information is conveyed by the modulated light from the LED. The microprocessor unit (MPU) framework modulates and demodulates information at transmitter and receiver respectively. The transmitter part modulates the input signal with the required time period and transmits the data in the form of 1's and 0's using a LED bulb. These 1's and 0's are nothing but the flashes of the bulb. The receiver part catches these flashes using a photodiode and amplifies the signal to produce the output. Li-Fi is implemented using white LED light bulbs at downlink transmitter. An array of LEDs can also be used for parallel data transmission and different colored LEDs to alter the LED frequency so that data are encrypted for different frequency.

First, we will study about the literature and feasibility of this project then we will design a suitable circuit and system for transceivers then we will purchase all the requirements and start our hardware and software part. We will use microprocessor or Arduino to modulate the intensity of LEDs by appropriate modulation scheme. In our project we will first convert the data file to be transferred into a binary stream of 0’s and 1’s which is fed into the Li-Fi TX hardware which transmits this data through light. Intensity of light is modulated to achieve this goal. We set a high threshold voltage as on state and a low threshold voltage as off state. Whenever the LED is in on state it transmits a 1 and when it is in off state it transmits a 0. The switching transistor is capable of toggling the state of led in nanoseconds which increases the speed of transmission to some extent. Photo detectors will be used as the sensors which will sense the modulated light. The Li-Fi RX after sensing the binary stream sends it to the system where the original data file is retrieved.

Final Deliverable of the Project

HW/SW integrated system

Type of Industry

Telecommunication

Technologies

Others

Sustainable Development Goals

Industry, Innovation and Infrastructure

Required Resources

If you need this project, please contact me on contact@adikhanofficial.com