li fi technology
TRANSCRIPT
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Li-Fi Technology
SADDAMHUSAIN HADIMANI 01FM15ECS030
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Introduction
• Demand for wireless data communication
• Light-based Wi-Fi(Prof. Harald Haas)
• VLC – Visible Light Communication
• Uses light-emitting diodes (LEDs) for data transmission.
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Why do we need an alternate technology?
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How Li-Fi Works?
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Real-time usage of Li-Fi
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Wi-Fi vs Li-Fi• Li-Fi can be thought of as a light-based Wi-Fi. That is, it uses light instead
of radio waves to transmit information.
• Instead of Wi-Fi modems, Li-Fi would use transceiver-fitted LED lamps that can light a room as well as transmit and receive information.
• Wi Fi is great for general wireless coverage within building and Li Fi is ideal for high density wireless date coverage in confined area and for relieving radio interference issues.
• Li-Fi is more secure than Wi-Fi.
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Applications• Underwater communications
• Health sector
• Internet anywhere
• Safety and management
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Advantages of Li-Fi• Li-Fi can solve problems related to the insufficiency of radio
frequency bandwidth because this technology uses Visible light spectrum that has still not been greatly utilized.
• High data transmission rates of up to 10Gbps can be achieved.
• Since light cannot penetrate walls, it provides privacy and security that Wi-Fi cannot.
• Li-Fi has low implementation and maintenance costs.
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Disadvantages • Light can't pass through objects.
• High installation cost of the VLC systems
• Interferences from external light sources like sun, light, normal bulbs, opaque materials.
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Conclusion
• If this technology can be put into practical use, every bulb can be used something like a Wi-Fi hotspot to transmit wireless data and we will proceed toward the cleaner, greener, safer and brighter future
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Thank You