5G network dangre? The truth about 5G mobile technology
People are fearing burning valuable infrastructure facilities for their health. I am sure you have heard all the fictional theories. 5G towers are weakening the immune system and causing a global epidemic. 5G is causing cancer. 5G Lizard is mind controlled by people. I don't think I'll be able to convince many of the paupers that believe in these things, so I'm not going to try, but let's take a look at what 5G really is, how it works, and some of the core problems.
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We have been using different wavelengths of electromagnetic radiation to transmit information for hundreds of years. In ancient Greece they used signal fire to convey with visible light. Today we send messages with light wiFi customers cable. These cables are capable of carrying the same amount of information and are the basis of the Internet, but we cannot connect all devices to it, as many devices must have memory.
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To make smart data transmission possible, cellular networks need to be developed and it all started in 1979 with the first generation cellular network in Japan, which we now call 1G.
It began in Tokyo where there would be direct communication from high-power radio towers installed in cars. These towers used radio waves with enveloped energy seated on the electromagnetic spectrum, and simply transferred the data to analog.
Let us see how analogue data can be transmitted using carrier frequency.
Suppose we want to send this sound wave, a simple 100 Hz wave. We want to apply it to a wave of 850 MHz, a wave that has a higher frequency. We can do this with amplitude modulation, or frequency modulation. AM and FM. With radio vending you must have heard about those conditions before.
The AM applies the data to the amplitude of the oscillating frequency, so it will vary the amplitude of the carrier frequency, eg, by simply tracing the original waveform with its participants and troughs.
The FM carrier applies the data to the frequency of the wave, viz. Reducing the distance between peaks to detect the original waveform. To transfer a call using this method, you need a dedicated frequency band, which is defined by the lowest and highest frequencies used. If another user is using that frequency band on the same tower, then you need to use a different frequency band.
The higher the frequency you have, the more cellcall towers you can handle. This is the bandwidth. As the number of users increased, the capacity of the system increased steadily. Adding more frequencies is an option for increasing bandwidth, but adding frequencies comes with its difficulties.
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Companies often have to go and buy licenses with large capital investment to acquire new frequency bands. This was done with every new generation of cell networks. But much was done to cram more data on the single frequency band through the years.
Increasing the number of users who can use the same frequency band can be as simple as increasing the number of towers. Instead of using a single high power tower to cover the entire city, several lower power towers can be used.
The frequency band can then be handed to each customer within the range of each tower without interfering with the same band in the neighboring chamber. This may increase the number of users who can support, but it has not increased the data transfer rate.
It had the best 1G capable of 2.4kilobits per second, but describing it in bits per second is a bit counter intuitive, because as we said, it works in analog.Bits were units of digital data. 2G ushered in a new era of mobile phones with the introduction of a fully digital system.
Instead of encoding an analog signal in a frequency band, we encoded binary data. My first phone was this animal. The legendary new 3310. Sure it can make calls, but allows for a new form of digital data communication.
This was the era when a new language was born. Spoken interview Recipient language is a language used to keep within the 160-character limit and prevent your mobile network provider from charging you for two texts.
In English, each character in that 160 character text was encoded with 7 bits. Therefore, a 140-letter text consists of 1120 bits.
When 2G was first introduced it could achieve around 9.6 kbit / second. It can easily handle 1120 bit text messages.
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But the 2G era was right up until the launch of the first Iphone, and increased speed to 200 kilobytes / sec, better Internet protocols such as General Packet Radio Switching or GPRS, sometimes referred to as 2.5G.By the time the iPhone 2 was launched, 3G was the new hot topic.
3G introduced additional frequency bands, estimating that companies in Europe alone paid more than $ 100 billion in auctions to acquire new frequencies. But 3G also made changes to a system that fully utilized the method of data packet switching, which GPRS used.
Packet switching allowed thousands of customers to share many different frequency bands more efficiently. Here the data was divided into small data packets. Each data packet has a header, which contains the address of the destination and information about how the data packet is reassembled.
Converting data to smaller bite sizes allows us to make better use of frequency bands.
Instead of trying to find a large difference of availability over a single frequency band, we can split the data into smaller pieces and send it to several different frequency bands, at which time a small availability appeared.Such as changing the sending of a huge truck of data on a single road, sending thousands of motorcycle messengers on roads with minimal traffic. This makes our use of frequency band capability more efficient and allows us to carry more data.
As time went by these protocols improved to allow even more efficient use of bandwidth. In 2005 HSPA's High Speed Packet Access, which you indicated on your phone as H +, was introduced, which increased the speed to 42 MBPS. It was labeled 3.5G.
4G introduced a new technology called Long Term Evolution, or LTE, it introduced even more frequency bands like the 700 MHz band previously used for analog TV broadcasts. This introduced a new way of squeezing more data through existing frequency bands with orthogonal frequency division multiplexing or OFDM.
OFDM allowed us to send far more data. You are probably familiar with the idea of constructive and destructive intervention. Where the joining of two waves can add or increase or cancel the amplitude of each other.
To prevent this signal was traditionally to be separated over time to prevent interference, but OFDM allowed the signals to be squeezed and overlapped simultaneously, allowing the same amount of data to be sent in a shorter period of time.
When the signals arrived, they separated and were once again converted to binary data. how? I do not know. Magic or math or anything else. Honestly, we can stream HD movies to our phones without a wire connection, the average person must feel like magic.
It has become so advanced that we are now struggling to increase speed without adding new frequency bands, but are not fully available, so network providers are now reaching bargaining range and removing the frequency no- Want to use the body.
High frequency millimeter waves. High frequency waveforms have been commonly waved for this type of application. High frequency waves are not as good at traveling. They get blocked by practically everything, including rain, the visible light of them.
You cannot see it unless you have a straight line with a torch. To deal with this network, providers have to install a large number of transmitters.
Studies have estimated that approximately 13 million utility pole-mounted 28 GHz base stations are required to bring 100 Mbps download speed for 72% of the population coverage and 1 Gbps speed for 55% of the US population, at a cost of $ 400 billion. Will be
Having multiple base stations will help in removing congestion on single frequency bandsband, but 5G will also use something called Jio on a large scale. Or massively multiple inputs multiple outputs.
These are basically just groups of antennas listening and transmitting the same frequency band.
This will cause interference, but 5G is also looking to use beamforming that will allow the antenna to aim at your phone instead of transmitting the signal in all directions.
Coupled with the fact that high frequency waves can carry more data means 5G is reaching speeds of up to 1800 Mbps in the US.
Higher frequencies may cause more information as we are incorporating our information into the wave cycle.
Our measurement of frequency is Hz, but all 1 Hz actually means that 1 wave cycle is reaching us per second, 10 Hz means that 10 wave cycles are reaching us per second. 190 MHz means that 190 million wave cycles are coming out every second. Because we are encoding our information in the wave cycle, it means that we
Because we are encoding our information in wave cycles, it means that we can encode more information into high frequency waves.
So far we are using frequencies between 700 MHz and around 2500 MHz. So 700 million wave cycles per second to 2500 million wave cycles per second.
However 5G wants to use frequencies as 90 gigartz. This is 90 billion wave cycles per second. A big step.
5G will allow higher download speeds and lower latency. This would be huge for critical technologies like self-propelled cars that require faster communication between vehicles in the network and allow even more devices to join the network. To create an Internet of Things.
5G has great potential, and is not dangerous. The electromagnetic spectrum starts with gamma radiation to the left, which has a much higher frequency and shorter wavelength. Higher frequencies and shorter wavelengths are equivalent to higher energy, and gamma radiation actually causes cancer.
Everything you should be concerned about here is ionizing radiation. Meaning it ejects electrons and damages things like your DNA, but 5G is passing here towards lower energy frequencies. Yes, the previous visible light, which last time I saw no one is afraid. Yes, as with visible light and microwaves, high powered beams of these wavelengths cause heating.
This is the only non-crackpot theory I can find on 5G that really sits within the realm of plausibility. The military also used a high-powered 95 GHz beam in its active refusal system, which made the receiving public feel as if someone had just opened the door of an oven in front of their face and that it had been exposed to people for a long timetime Can burn.
This was inconvenient and intended to disperse the crowd. It was essentially a focused beam of 95 GHz light, similar to a massively magnifying glass to concentrate light to burn a piece of paper. Because yes, just as visible light can be used for heating, so can these wavelengths when used at high power and intensity.
As we said earlier these frequencies are blocked by rain and so they definitely cannot penetrate your skin and these transmitters simply do not have enough heat loss. They are simply very low power and there are a lot of studies which suggest that they are not harmful.
If you are afraid of 5G in this way, you may be afraid of streetlights because they emit high energy frequencies. Every day technologies like this can seem like magic until you drop the layers back to their initial iteration and see that they are the products of many years of problems that add more complexity with each successive generation.
1 Comments
Nice job
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