Daily Current Affairs : 4-July-2024
The Indian Defence Ministry has currently followed Velmenni’s Li-Fi technology to address communication challenges within the Indian Navy. This decision is part of a broader effort to enhance the performance and security of communication systems used by the Navy. Velmenni’s Li-Fi technology is supported by a grant under India’s iDEX initiative, which aims to encourage innovation in defense technology. The introduction of this advanced technology will significantly enhance the capabilities of the Indian Navy in handling secure and high-speed communication.
What is Li-Fi Technology?
Li-Fi, short for Light Fidelity, is an advanced wireless communication technology that uses light, specifically visible light from LED bulbs, to transmit data. Unlike conventional radio waves used in Wi-Fi, Li-Fi uses light as a medium to deliver faster, more secure communication. The concept of Li-Fi was first introduced by Professor Harald Haas in 2011 and has since gained traction for its potential to revolutionize wireless communication.
How Does Li-Fi Work?
Li-Fi operates by modulating the intensity of LED light to encode data. This modulated light is then received by photodiodes, which decode the information, enabling fast data transmission. Some key features of Li-Fi include:
- High-speed communication: Li-Fi can offer data speeds much faster than Wi-Fi, making it ideal for environments requiring large data transfers.
- Lower latency: The technology can transmit data with minimal delay, ensuring real-time communication.
- High bandwidth: Li-Fi can carry vast amounts of data, with bandwidth measured in the thousands of terahertz, far surpassing traditional radio-frequency systems.
Advantages of Li-Fi Over Wi-Fi
- No electromagnetic interference: Unlike Wi-Fi, which uses radio waves, Li-Fi does not interfere with other electronic devices. This makes it suitable for environments such as aircraft cabins, hospitals, and nuclear power plants, where electromagnetic interference could pose serious risks.
- Enhanced security: Since Li-Fi relies on light, it cannot penetrate walls like Wi-Fi signals. This makes it a highly secure option for communication, particularly in sensitive areas.
- Efficient use of unused light frequencies: Li-Fi uses the visible light spectrum, which is largely underutilized for communication. This helps free up the already congested radio-frequency spectrum.
Li-Fi’s Role in the Indian Navy
The adoption of Li-Fi by the Indian Navy is a significant step towards improving the security and speed of naval communications. The technology’s ability to provide fast, secure, and interference-free communication makes it ideal for military applications, where confidentiality and reliability are of utmost importance. Furthermore, the use of Li-Fi in the Navy could reduce dependence on traditional, more vulnerable communication methods, such as radio waves.
Important Points:
- Adoption of Li-Fi in the Indian Navy:
- The Indian Defence Ministry has adopted Velmenni’s Li-Fi technology to improve communication systems in the Indian Navy.
- This move is part of a broader effort to enhance communication security and performance.
- Li-Fi technology is supported by India’s iDEX initiative, which promotes innovation in defense technology.
- What is Li-Fi Technology?
- Li-Fi (Light Fidelity) is a wireless communication technology that uses visible light from LED bulbs to transmit data.
- Unlike Wi-Fi, which uses radio waves, Li-Fi uses light for faster and more secure communication.
- The concept was introduced by Professor Harald Haas in 2011.
- How Li-Fi Works:
- Li-Fi modulates the intensity of LED light to encode data.
- This modulated light is received and decoded by photodiodes, enabling fast wireless data transmission.
- Key Features of Li-Fi:
- High-speed communication: Li-Fi offers much faster data transfer speeds than Wi-Fi.
- Lower latency: Li-Fi ensures minimal delay, supporting real-time communication.
- High bandwidth: Li-Fi can carry vast amounts of data with bandwidth measured in the thousands of terahertz.
- Advantages of Li-Fi Over Wi-Fi:
- No electromagnetic interference: Li-Fi does not interfere with other electronic devices, making it safe for sensitive environments (e.g., hospitals, aircraft, nuclear plants).
- Enhanced security: Li-Fi signals cannot pass through walls, offering more secure communication.
- Efficient use of light spectrum: Li-Fi uses the visible light spectrum, freeing up the congested radio-frequency spectrum.
- Li-Fi’s Role in the Indian Navy:
- Li-Fi enhances the security and speed of naval communications.
- It is ideal for military applications where reliability and confidentiality are critical.
- The adoption of Li-Fi could reduce reliance on traditional communication methods, like radio waves.
Why In News
The Defence Ministry has adopted Velmenni’s Li-Fi technology to tackle communication challenges in the Indian Navy, aiming to enhance data transmission speed, security, and reliability in critical naval operations.
MCQs about The Adoption of Li-Fi Technology within the Indian Navy
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What is the primary technology used by Velmenni’s Li-Fi for data transmission?
A. Radio waves
B. Microwaves
C. Light from LED bulbs
D. Infrared signals
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What is one major advantage of Li-Fi over Wi-Fi?
A. Higher latency
B. Interference with other devices
C. Greater security
D. Reduced speed
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Which initiative supports the development of Velmenni’s Li-Fi technology in India?
A. Make in India
B. Digital India
C. iDEX Initiative
D. Atmanirbhar Bharat
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Which of the following is NOT a key feature of Li-Fi technology?
A. High-speed communication
B. Low bandwidth usage
C. Low latency
D. Use of visible light spectrum
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