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Context
Details
Advantages for the Indian Navy
Strategic Alignment with Government Initiatives
Light Fidelity (Li-Fi)
How Li-Fi Works
Advantages of Li-Fi
Limitations of Li-Fi
Applications of Li-Fi
Feature |
Wi-Fi |
Li-Fi |
Bluetooth |
Zigbee |
TransMediummission |
Radio waves |
Visible light (LEDs) |
Radio waves |
Radio waves |
Frequency Range |
2.4 GHz, 5 GHz |
400–800 THz |
2.4 GHz |
2.4 GHz |
Data Transfer Speed |
Up to 1.3 Gbps |
Up to 224 Gbps (theoretical) |
Up to 3 Mbps |
Up to 250 kbps |
Range |
Up to 100 meters |
Limited to the range of light |
Up to 100 meters |
Up to 100 meters |
Interference |
Susceptible to interference |
No electromagnetic interference |
Susceptible to interference |
Low interference |
Power Consumption |
Moderate to high |
Low (LED-based) |
Low |
Very low |
Security |
Moderate |
High (cannot penetrate walls) |
Moderate |
High |
Infrastructure Cost |
Moderate to high |
High (installation of LEDs and photodetectors) |
Low |
Low |
Applications |
Internet access, IoT |
IoT, Healthcare, Aviation, Underwater communication, Smart lighting |
Short-range data transfer, Peripheral devices |
Home automation, Smart energy, IoT |
Standardization |
Well-established standards |
Emerging, not yet standardized |
Well-established standards |
Well-established standards |
Energy Efficiency |
Moderate to low |
High (energy-efficient LEDs) |
High |
Very high |
Line of Sight |
Not required |
Required |
Not required |
Not required |
Mobility |
High |
Limited |
High |
High |
Latency |
Low to moderate |
Low |
Low |
Low |
Complexity |
Moderate |
High |
Low |
Low |
Sources:
PRACTICE QUESTION Q: Li-Fi has the potential to revolutionize wireless communication with its high speed and security features. Comment. (150 Words) |
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