A

SEMINAR REPORT

ON

LI-FI TECHNOLOGY

In partial fulfillment of requirements for the seminar of

Bachelor of Technology

In

Information Technology

Submitted By

SURAJ KUMAR YADAVA

Under the Guidance of

SHOBHIT KUMAR

DEPARTMENT OF INFORMATION TECHNOLOGY

Manywar Kanshiram Engineering College of Information Technology

Ambedkar Nagar

[2013-2014]

CERTIFICATE

This is to certify that seminar work entitled “LI-FI TECHNOLOGY” is a bonafide work

carried out in the sixth semester by “SURAJ KUMAR YADAVA” in partial fulfillment for

the award of Bachelor of Technology in Information Technology from Manywar

Kanshiram Engineering College of Information Technology during the academic year

2013-2014. Who carried out the seminar work under the guidance and no part of this work

has been submitted earlier for the award of any degree.

AAKANSHIT VERMA SHOBHIT KUMAR

(SEMINAR CO-ORDINATOR) (GUIDE)

ACKNOWLEDGEMENT

I would like to express my deep and sincere gratitude to my seminar supervisor Mr.

AAKANSHIT VERMA and Mr. SHOBHIT KUMAR Assistant Professor, Department of

Information Technology for his dedicated and sincere efforts and guidance towards the

completion of this important work providing all the possible and proper guidance.

I would like to thanks Mr. SHOBHIT KUMAR, Head of Department of Information

Technology, for his helpful attitude, cooperation and encouragement without whom this work

would not have materialized.

I feel pleasure to express thanks to all faculty members of the Information Technology

Department for their valuable encouragement and timely suggestions. I also thank to the all

staff members of the Information Technology Department for their helps rendered.

.

SURAJ KUMAR YADAVA

(1173713051)

(Contact-9792925175)

ABSTRACT

Li-Fi is a VLC, visible light communication, technology developed by a team of scientists

including Dr. Gordon Povey, Prof. Harald Haas and Dr. Mostafa Afgani at the University of

Edinburgh. The term Li-Fi was coined by Prof. Haas when he amazed people by streaming

high-definition video from a standard LED lamp, at TED Global in July 2011. Li-Fi is now

part of the Visible Light Communications (VLC) PAN IEEE 802.15.7 standard. “Li-Fi is

typically implemented using white LED light bulbs. These devices are normally used for

illumination by applying a constant current through the LED. However, by fast and subtle

variations of the current, the optical output can be made to vary at extremely high speeds.

Unseen by the human eye, this variation is used to carry high-speed data,” says Dr. Povey,

Product Manager of the University of Edinburgh's Li-Fi Program ‘D-Light Project’. [10][11]

CONTENTS

1. INTRODUTION…….………………………….……………………………………..1

2. GENESIS OF LI-FI……………………………….……………….………………......2

3. WORKING OF LI-FI……..………………………….….……………………….……3

4. WORKING OF LI-FI LIGHT SOURCES……………………….................................6

5. APPLICATION OF LI-FI TECHNOLOGY…...………………………......................8

6. CONCLUSION…………………………………………………….……….……......10

7. REFERENCES…………………………………………………...…………...……...11

LIST OF FIGURES

1. Hass Harald ……………………………………………………………...……….....2

2. LED Bulbs…………………………………………………………………...………3

3. Li-Fi Demonstration……………………………………………………………...….4

4. LI-FI Use………………………………………………………………………...…..5

5. Data Transfer Using Light……………………………………………………...…....7

6. Application of LI-FI…………………………………………....................................8