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Benefits and Future Security Concerns of Li-Fi Networks

November 15, 2016    |    Cyber Security    |    Private Tunnel

Li-Fi vs. Wi-Fi

Li-Fi is the newly developed alternative to Wi-Fi communications technology that uses light transmitters instead of radio transmitters. Reviews of Li-Fi technology by MASHABLE show that it has transmission speeds that are nearly 100 times faster than Wi-Fi. Li-Fi products are still in their infancy, but someday soon you might just find yourself replacing your Wi-Fi networks with Li-Fi to make your systems faster and more secure.

How Li-Fi Works

Li-Fi is the newest alternative to Wi-Fi. It uses light emitting diodes (LEDs) in place of wireless transmitters to communicate between networks and devices. It uses the same setup as Wi-Fi networks except the wireless transmitter is replaced with a Li-Fi transmitter. The transmitter sends visible light signals to receivers on users' devices.

Li-Fi can be installed in any area where a Wi-Fi network exists. The conversion process consists of installing transmitters on users’ devices and the network. Most versions of this technology use the same type of connections that Wi-Fi transmitters do, so the conversion to Li-Fi is simple.

Benefits of Using Li-Fi Vs. Wi-Fi

Li-Fi can be much more cost effective to operate than standard Wi-Fi, because Li-Fi works using visible light technology. Many buildings already use LED bulbs for lighting, and the same light source can be used to transmit data. That makes Li-Fi very energy-efficient and can save on costs.

Because it uses light, Li-Fi is also significantly faster than Wi-Fi. The transmission process happens so quickly that the human eye cannot perceive the variations in the signal. This speed makes it possible to communicate across networks nearly instantaneously. It also makes higher transfer speeds possible. Li-Fi is expected to be the pinnacle of communication technologies in terms of speed because it uses light to facilitate communications.

Li-Fi is also significantly more secure than Wi-Fi. Wi-Fi signals can be intercepted by any device within range of the transmitter, but Li-Fi signals are incredibly focused and must land directly on the receiver to be intercepted — because Li-Fi works off of light, and light cannot pass through solid structures, Li-Fi Internet is available only to the users within a room and cannot be breached by users in other rooms or buildings. This prevents other devices from intercepting and decoding your communications. Communication security is significantly improved using Li-Fi as it enables you to focus the transfer stream to a minimal area.

You could also install Li-Fi in a way that ensures that different devices within the same location can receive different communication signals containing different information. Set up correctly, Li-Fi enables you to ensure that two devices close to each other cannot interfere with each other’s communications.

Addressing Potential Li-Fi Concerns

Li-Fi is currently more expensive than alternative technologies for the market. Also, it requires the modification of an existing Wi-Fi network to implement. Special Li-Fi products and LED transmitters must be installed on the network as well as on user devices to facilitate communications. This can make applying the technology more expensive than many organizations are willing to spend.

Li-Fi is also limited in its transmission area. The receiver on the user’s device must be directly in the line of sight of the network transmitter. The light signals that Li-Fi produces cannot pass through walls and obstacles. Because of this, there must be a Li-Fi transmitter in every room where devices will be used. Li-Fi Internet also cannot be used without a light source. This could limit the locations and situations in which Li-Fi could be used.

The current development of Li-Fi products has several limitations, but with further development this could be a revolutionary new product that completely replaces traditional Wi-Fi .

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