How LiFi Will Get Wireless Communication Lit Up!
fed up with poor WiFi connections. I want my devices to operate without interruption every time a plane flies over my house too low or our service provider can’t supply enough bandwidth to send signals without charging me an arm and a leg.
Next steps in data communications.
I’m fed up with poor WiFi connections. I want my devices to operate without interruption every time a plane flies over my house too low or our service provider can’t supply enough bandwidth to send signals without charging me an arm and a leg. We need to have connections not limited to the weaknesses of radio frequencies.
Enter the LiFi zone.
What is LiFi? We’ve all used a remote control to operate a television, a fan, and numerous other devices. The technology behind LiFi is similar. Enter a newer domain of wireless communication; Technology utilizing LED light to transmit data.
Whereas Wifi relies on radio frequencies (RF waves) to send information LiFi embeds data in LED light then uses a modulating device (similar to a modem) to emit photonic impulses received by phones, tablets, computers, etc.
In 2015 Harold Haas introduced LiFi to the world in a TED Talk and demonstrated it’s general properties. The growing demands of the Internet and need to transfer information around the globe requires an inexpensive or nearly free energy source. Haas points to using existing infrastructure to accomplish reaching an exponentially growing information dependant global network.
Street lights, office lighting, house lighting, and many other possible light sources can be effective methods for data transmission.
LED lights and solar cells will provide the means. LiFi provides the next generation in communications.
Pulses of light, flickering at speeds too fast for the human eye to discern, travel in a direct line of sight from an LED source to a silicon photodiode. Data, encoded in the light, is formatted in binary code. The amount of information and speed at which it can be delivered is thousands of times greater than possible using WiFi.
LiFi is able to able to achieve transmission rates of 8 Gbps from a single light source. Current Maximum WiFi transmissions of 900 Mbps will not be sufficient in comparison to LiFi as the Internet-of-Things and machine communications increases.
Worldwide demands for larger and much faster data transmittal requires the innovation of LiFi. Fewer components requiring little power will make using LiFi much less expensive than all other forms of information communication.
Another incredible LiFi benefit centers on security. Because light cannot pass through opaque structures data will be safe and unable to be accessed by anyone outside of the area data embedded light broadcasts in.
Unlike WiFi, the feed in your office or home will not be able to be hacked. However, there remains the foremost obstacle and con regarding LiFi:
In order to achieve the reception of impulses holding encoded data secure and uninterrupted transmission of the LED light must be achieved. Pulses of light may not meet an obstacle or interference in order to be successfully read by awaiting devices.
Modulators will receive information using existing fiber optic cables then broadcast through LED lights effectively in enclosed spaces such as an office. Doing so in public areas presents a whole new challenge.
Transmitting LiFi information to any specific IP address outside of a closed area will require further developments in LiFi technology.
Sunlight also presents an impediment to the transmission of LED data-infused light outside and in public areas. Fluctuations in surrounding ambient light could cause havoc with LiFi conveyance.
With the increased research and further development of LiFi, we will experience a paradigm shift in the speed and quality of universal data delivery. Our world will become a little smaller, cozier, and better informed.
I’m excited to experience and revel in the wonderful evolution in data transmission LiFi will bring.