• 148 days Could Crypto Overtake Traditional Investment?
  • 152 days Americans Still Quitting Jobs At Record Pace
  • 154 days FinTech Startups Tapping VC Money for ‘Immigrant Banking’
  • 157 days Is The Dollar Too Strong?
  • 158 days Big Tech Disappoints Investors on Earnings Calls
  • 159 days Fear And Celebration On Twitter as Musk Takes The Reins
  • 160 days China Is Quietly Trying To Distance Itself From Russia
  • 161 days Tech and Internet Giants’ Earnings In Focus After Netflix’s Stinker
  • 165 days Crypto Investors Won Big In 2021
  • 165 days The ‘Metaverse’ Economy Could be Worth $13 Trillion By 2030
  • 166 days Food Prices Are Skyrocketing As Putin’s War Persists
  • 168 days Pentagon Resignations Illustrate Our ‘Commercial’ Defense Dilemma
  • 168 days US Banks Shrug off Nearly $15 Billion In Russian Write-Offs
  • 172 days Cannabis Stocks in Holding Pattern Despite Positive Momentum
  • 172 days Is Musk A Bastion Of Free Speech Or Will His Absolutist Stance Backfire?
  • 172 days Two ETFs That Could Hedge Against Extreme Market Volatility
  • 175 days Are NFTs About To Take Over Gaming?
  • 175 days Europe’s Economy Is On The Brink As Putin’s War Escalates
  • 178 days What’s Causing Inflation In The United States?
  • 179 days Intel Joins Russian Exodus as Chip Shortage Digs In
Western Companies Are Being Shamed Into Leaving Russia

Western Companies Are Being Shamed Into Leaving Russia

“Companies that fail to withdraw…

After Long Silence, McDonald’s, Coca-Cola to Exit Russia

After Long Silence, McDonald’s, Coca-Cola to Exit Russia

“McDonald’s has decided to temporarily…

  1. Home
  2. News
  3. Breaking News

The Tech Breakthrough That Will Render Wi-Fi Obsolete

Lights

The next internet could be powered by illumination, and it could be 10x the speed of today’s Wi-Fi, but there’s one big challenge that’s got commercial viability up against a wall.

Light Fidelity LED lightbulbs (Li-Fi) that could potentially replace Wi-Fi networks are being tested right now by Philips at the offices of a French real estate investment company.

The term Li-Fi was initially coined by University of Edinburgh Professor Harald Haas during a TED Talk in 2011 when he announced that light bulbs could act as wireless routers. One year later, he set up a company called pureLiFi.

But then he hit a snag: It was discovered that Chinese telecoms giant Huawei had already patented the technology in 2006, as Li-Wi—which has been under development by various researchers in the years since, and they’re hoping to replace Wi-Fi.

Another developer, an Estonian start-up called Velmenni, says it’s “chasing 10x the speed of current day data communication through illumination”.

Velmenni also recently tested Li-Fi commercially and found it superior to Wi-Fi in every way.

Whether Li-Fi or Li-Wi emerges triumphant in this race, some believe the idea itself seems set to render Wi-Fi as we know it obsolete, but others see too many challenges ahead.  

So how does it work?

It works pretty much the same way that Wi-Fi works, but it leverages light waves instead of radio waves to transmit data.

An LED light bulb is a semiconducting light source—that means that the constant current of electricity supplied to an LED light bulb can be moved up and down at extremely high speeds that aren’t visible to the human eye. In other words, they can be dimmed and brightened more rapidly that the eye can detect. And it is this rapid light change that is converted by the “receiver” into an electrical signal. One step further, and this is converted back into a binary data stream…

And the future of the internet. Related: Is This The End Of Social Media?

Li-Fi provides broadband internet through lights, using LEDs to transmit a high-speed connection of up to 30 Mb per second through light waves.

It’s still in its early stages, but not as early as you might think.

With the current technology being tested, users would need to plug a USB into their devices in order to enable access to Li-Fi. But experts think that eventually, devices will have built-in Li-Fi.

And when we hit this point, the benefits are wild: It’s said to be much faster than our existing Wi-Fi tech, more energy efficient, and even potentially more secure.

Even better, it works where Wi-Fi doesn’t. For instance, it works where Wi-Fi radio frequencies often are blocked because they interfere with critical infrastructure such as medical equipment in hospitals.

Because Li-Fi is transmitted via lights, it can reach areas that are deep underground. Seamless hands-off technology ensures that the signal will remain constant as a connected device moves from one light to another.

But there is one very big challenge: What Li-Fi can’t do is penetrate walls, which remains one of the key challenges to its full implementation. Li-Fi needs open space, just like light does.

Velmenni's Jungru technology is a case in point. While it is already commercially viable and can transmit data at gigabit speed and in theory could hit 224 gigabytes per second, it’s a laboratory-grade set-up, which means that we’re not at the point where this is going to become mainstream.

Once it gets into the mainstream, where light pollution and a million other variables challenge it, we could see some more snags emerge, according to TechCrunch.

By Fred Dunkley for Safehaven.com

More Top Reads From Safehaven.com:

Back to homepage

Leave a comment

Leave a comment