How 5g works? and is it safe?


How 5g works? and is it safe?

How 5g works and what it is going to deliver in near future

5g is the fifth generation of wireless data networks and it will improve them far more than 4G or 3G ever could. You'll feel it in your phone, your home, your car and in the city and town around you. Downloads and streaming should happen literally without delay. Cars will talk to each other to prevent collisions. An untethered augmented and virtual reality can finally be achieved with real-time response. Not to mention industrial benefits like remote surgery or drone control. 5g does it's magic with three key abilities, first, high bandwidth that 4G could only muster about 200 megabits per second of data on a good day but 5g can handle up to 1 gigabit or more, that's a thousand megabits a second on up low latency. 4G suffers from around a hundred milliseconds or so in response delay or latency. 5g reaction time can be as low as 1 millisecond which makes everything happen virtually instantly and dense connections in a given square kilometre. 4G could only manage to connect about 1/10 the amount of devices as 5g can. If that's some of what 5g does how does it do it?

How 5g works? and is it safe?

5g uses new radio technology the part of any wireless device that makes the connection. 5g uses some radio frequencies in a band known as sub 6 from 600 megahertz to 6 gigahertz part of which is also used by current 4G LTE. But 5g will also use a higher band of radio frequencies from 24 gigahertz to as high as 86. These much higher frequencies bring with them much higher data rates. Now while these new 5g radio waves can carry more data with higher performance they can't carry it as far, so 5g will use a lot of so-called small cells. These are small versions of the big cellular towers. We all know 5g will also use some new tricks in these small cells like beam-forming to efficiently aim transmissions rather than just spray everything everywhere. The bottom line though you will need new phones or tablet or portable hot spots on with a 5g radio inside to connect to the new 5g networks. 5g networks will also position more data and computing resources closer to you that will avoid blunting 5 G's low latency benefits.

How 5g works? and is it safe?

Most of us do think of phones when we think of wireless networks but phones may actually be the least interesting thing about 5g, it will also power autonomous cars so they have awareness of every other car, bike, pedestrian and traffic signal around them. Smart cities based on 5g can make almost anything that's electric also connected and aware. When a bridge needs repair why can't it tell someone? With a mesh of 5g connected sensors it could. And then there's your home, 5g will offer a new way to get internet. There is skewing cable or DSL and one day maybe even obviating your Wi-Fi router altogether as devices may just use 5g natively to connect directly to a wireless ISP.

Is 5g safe?

Some of the concerns are getting raised about 5g, although 5g promises to deliver faster speeds to our phones and there are even home-based internet solutions that use 5g. The fact that 5g travels over higher frequency radio waves has led to speculation that it might be riskier to use than older generation wireless standards.

 So how much truth is there to this? And why are people concerned in the first place?

 Well to start with 5g uses what's often called millimetre wave frequencies which are shorter than the typical frequencies used by 4G and Wi-Fi signals and therefore higher in energy. In fact while LTE can use frequencies of around 2.5 gigahertz and Wi-Fi often works on the 5 gigahertz band millimetre wave frequencies, but 5g can be up to 300 gigahertz. So we're not talking about like a small incremental leap here.

Could all this extra energy end up being harmful in ways we haven't seen before? Well some of the folks and advocacy groups that believe it is.

How 5g works? and is it safe?

Point to actions taken by the International Agency for research on cancer or IARC specifically on the fact that they've classified RF electromagnetic fields in short radio waves as possibly carcinogenic to humans as evidence that it is. Well that sounds pretty alarming doesn't it? Well it might until you consider that many things that most of us find innocuous, like a cup of coffee actually fall under exactly the same category. You see if you dig into what the IAR sees definition of possibly carcinogenic is they mean that there's only a limited amount of evidence that an agent might cause cancer. So there might be some kind of weak correlation that's been observed in studies but that is a very far cry from there being any kind of real.

How 5g works? and is it safe?

Anyway the reason that we have nothing to fear from 5g. The radiation has to be much higher frequency to be what's called ionizing. Ionizing radiation can mess with the molecular structure of your DNA and cause cancer. The thing is the threshold for this is around a million gigahertz much higher than the 300 or so that can be used by 5g and at that point you're not even dealing with radio waves anymore you're dealing with ultraviolet light.

Now with all of that said we're not claiming that 5g or any other piece of technology that we use can't cause cancer or other health problems by some mechanism that we haven't yet discovered or don't fully understand yet. US CDC says there is no scientific evidence to provide a definite answer to the question of cellular radio wave safety be it 3G, 4G or 5g. 5g will take years to roll out and some investment on your part but the complexity of that deployment and debugging should be worth the wait, delivering the world we've been promised for a long time where everything is connected, aware and responsive and a world in which we can stop worrying about the availability of performance of connectivity in the first place.

 

 


 


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