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Era of 5G Network


সারাহ জেবীন

The fifth generation (5G) of network technology has the potential to benefit everything from entertainment and gaming to education and public safety. It will be faster and able to handle more connected devices than the existing 4G LTE network. Over time, 5G is expected to deliver faster download speeds, real-time responses, and enhanced connectivity, are still in their early days, but experts say the potential of 5G is huge.

Benefits:

5G will have greater bandwidth, meaning it can handle many more connected devices than previous networks. That means no more spotty service in a crowded area. 5G will also reduce latency: the time it takes for a cell phone (or other connected device) to make a request from a server and get a response - to virtually zero. And it will make communication with cloud platforms faster and easier.

How does it work:

The increased speed is achieved partly by using higher-frequency radio waves than current cellular networks. However, higher-frequency radio waves have a shorter range than the frequencies used by previous cell phone towers, requiring smaller cells. So to ensure wide service, 5G networks operate on up to three frequency bands, low, medium, and high. A 5G network will be composed of networks of up to 3 different types of cells, each requiring different antennas, each type giving a different tradeoff of download speed vs. distance and service area. 

Drawback of 5G:

There are several studies that suggest prolonged exposure to radiofrequency electromagnetic fields could increase the risk for cells to be damaged, a possible cause of cancer. Radio waves, in general, can either be ionizing, or non-ionizing. Ionizing radio waves are ultra-high-frequency radio waves, like gamma rays, that could damage DNA. Non-ionizing radio waves, however, cannot have that effect — and the radio waves used in wireless technologies, like 5G, aren’t even close to the line between ionizing and non-ionizing waves.


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