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Investigation of Lifi Solution

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loai bitawi

on 6 May 2015

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Transcript of Investigation of Lifi Solution

Investigation of Lifi Solution
Topic
Introduction
What is Li-Fi?
Why Li-Fi?
Li-Fi vs. Wi-Fi
Li-Fi modulation
Implementation and circuitry
Why not Microcontroller?
Budget and Feasibility
SWOT
Future Work
Summary and Conclusion

What is Li-Fi?
Li-Fi (Light Fidelity) is a new technique which uses visible light communication (VLC) for transmitting data through a LED light bulb by varying the light intensity faster than the human eye can follow.

If the LED is one then the receiver registers a binary 1, otherwise logic zero is registered.

Why Li-Fi
It carries much more information compared to Wi-Fi, 3G and 4G.
An excellent solution for the bandwidth limitation.
High data rate exceeds 10 Gb/s.
More secure with lower cost.
Does not cause electromagnetic interference.
Low power consumption.
It leads to internet of things.

Li-Fi vs. Wi-Fi
Introduction
Problem Statement
Prepared By:
Loai M.Ali Bitawi
Madlin Khalil Najjar

Supervised By:
Dr.Naser Abu-Zaid
An-Najah National University
Engineering and Information Technology Department

Solution
Optical Angle
Li-Fi modulation
OOK,CCM,V-PPM,HHW
OOK (On Off Keying).

Implementation and circuitry
Transmitter:
Block diagram

Schematic
Actual implementation

Receiver:
Block Diagram
Schematic
Actual implementation

Results
Why not Microcontroller?
Cost
Robustness
Data rates
Maintenance

Budget and Feasibility
Future Work
Increasing the distance.
Eliminating the day light effect.
Sending data (text, audio, video…. etc).
Establishing an internet connection.
Figure out an interface for mobiles and desktops.
Inspecting handover and other mobility problems if time permits.
multi-users interconnection if time permits.

Summary and Conclusion
First Phase:
Implementation of Tx and Rx circuits, sending ASCII data serially using the hyper Terminal over a distance of 20cm and receiving it effectively.
This test case was indoor case.
Second Phase:
we will try to make it applicable as an outdoor solution, and hopefully solve the problem of need for higher data rates in wireless telecommunication.

Questions are guaranteed in life
answers aren't

Any Questions??!
Professor Harald Haas, Chair of Mobile Communications at school of Engineering, University of Edinburgh
Full transcript