WiFi has been an integral part of our life since the 90s when it first came into being. Originally created for wireless connections in cashier systems under the name WaveLAN, the trademarked WiFi name came into existence just before the turn of the century and hasn’t looked back since.
Alongside WiFi, cellular internet was also thriving, giving people the power to connect to a network through a phone signal. The current rollout of 5G shows that this method of connecting to the internet is also still very popular and getting more advanced by the year.
But since the conception of these two types of communications, several new methods have also been designed, and may be contenders to replace them in future.
How does WiFi work?
WiFi stands for Wireless Fidelity and uses radio waves to transmit signals between devices. The frequency is in the Gigahertz range, as opposed from Kilohertz and Megahertz for AM and FM radio respectively. This is why every iteration of cellular internet has a ‘G’ after it, because the frequency range for WiFi is between 2.4GHz and 5GHz.
But, as with all things, there are limitations to WiFi’s capabilities. Many current devices can’t yet use 5G as they weren’t built to support it, and 2.4G is now so congested it is almost always unusable too.
This WiFi alternative, known as Light Fidelity, was first announced in 2011 during a TED Global Talk by Professor Harald Haas where he demonstrated it for the first time. The system uses light instead of radio waves, so lightbulbs can create a wireless type of network.
Despite the term being first coined by Haas, CSO of PureLiFi, several companies have since introduced products with strikingly similar names that also use light. This type of communication is called Optical Wireless Communications (OWC), which encompasses communications using infrared, ultraviolet and visible light.
Starlink is just one example out of the category of satellite WiFi. The SpaceX subdivision uses a network of private satellites positioned across the globe to provide internet access. Currently the company has around 2,000 working satellites orbiting the planet.
Although this is already an established form of internet access, especially in rural areas, the investment in developing this technology and its versatility makes it a contender for the monopoly on WiFi in the future.
Mesh networks are often used as an extension to a regular WiFi home connection. The short-range network uses two modulation techniques, Binary and Quadrature Phase-shift Keying (BPSK and QPSK). This makes the mesh network devices act like high-speed Ultra-wideband ones.
The system works on the principle that you install nodes, like mini satellites, throughout your house. The nodes all act as stepping stones, which means the WiFi signal at any point in your house will be much stronger than if you only had one central router.
The fibre-optic future
With the recent advent of 5G and the increasing availability of faster WiFi thanks to tech like fibre optic broadband, it’s unlikely it will go out of fashion very soon. But it’s always nice to have a bit of choice, isn’t it?
One huge benefit that comes with the internet is being able to find electronics component suppliers at high speed. Whether you’re on satellite WiFi, cellular, or LiFi, contact Cyclops Electronics today at firstname.lastname@example.org to see how we can help you.