Fifth-generation superfast 5G internet is going to launch early next year in several countries. It may correspondingly make download speeds up to 20 times quicker. So, we should prepare ourselves to understand what this future means for us.
It promises much higher download and upload speeds, wider coverage, and stable connections. 5G is the next generation in superfast mobile internet connectivity. It is also the next-generation cellular technology. Any network using the 5G New Radio software is a 5G network. Alternatively, 5G systems are the systems meeting the ITU IMT 2020’s requirements.
Cells are the geographical units that make each service area in a 5G digital cellular network. Sounds and signals represented by analog signals are digitized in the phone. After that, they are converted by an analog to digital converter and transmitted as a bitstream. Communication by all 5G devices in a cell is done through low antenna array radio waves, and low power automated transceiver in the cell over transceiver assigned frequency channels. The telephone network connects the local antennas, and a high bandwidth optical fiber/ wireless backhaul connection connects the internet. Passing of a mobile device from one cell to another is therefore seamless.
5G and millimeter waves
The band of spectrum is between 30 GHz, and 300 GHz is the millimeter wave spectrum. High-speed wireless communications use this spectrum. Authorities and researchers have decided on this spectrum to bring 5G into the future. More bandwidth will be allocated for 5G. It will deliver more, higher quality content and services.
A higher frequency spectrum will accommodate the increase in data usage.
Usage of mm waves was more difficult up to a few years back. The essentially short-ranged Mm waves are vulnerable to rain, gas, humidity. They are most useful only indoors. But ingenious developments enable the long propagation of these waves.
Spectrum reuse is what developers have come up with. High propagation losses and short transmission paths permit spectrum reuse. This is by limiting the amount of interference between adjacent cells. For very small antennas to concentrate signals into highly focused beams with enough traction to overcome propagation losses. Extremely short wavelengths of mm waves will be used. This, in turn, will make longer paths feasible. Multi-element, beam-forming antennas can be inbuilt into handsets. This is a direct consequence of the shortness of wavelengths that mm signals feature.
Almost everyone is agog with enthusiasm over 5G. 5G makes working with smartphones fun, faster, and better. The Internet of Things will get more into its stride. It is, however, difficult to foresee the entire ramifications of the new technology.
On the grandiose scale, it will also become to perform more efficient search and rescue missions. The same will be true of fire assessments and traffic monitoring. The concept of ‘smart cities’ will really come into its own. Vehicles will become more and more autonomous, reading live traffic data and maps.
On the mundane, everyday level, there will be increasingly less latency, or delay, while mobile games are playing. Instantaneous and glitch-free videos will be the norm. Less jerky and clearer video calls will be normal. Fitness devices will monitor your health in real-time. Subsequently, instant alerts will notify doctors in case of an emergency.
5G – Cons and Downsides
Given the short range of mm waves, the placing of booster antennas at every 500 feet becomes essential. So there will be booster antennas on street signs, street lights, and even post boxes.
These antennas will open the gateway to more radiofrequency radiation. Strong radiofrequency fields correlate with cancer in rats. Controlled experiments show that prolonged exposure to EMFs (Electromagnetic Fields) impairs the nervous system of rats.
Given the nature of mm waves, it is natural that more heed it going to newer experiments in this area. That is imperative – given the ubiquitous use, 5G networks are going to enjoy.