Although this technology enables super fast wireless application, the proportion of the network will still need to be fiber fed and for most of the country, this infrastructure is not in place. Whilst urban areas may enjoy 5G, there are still suburban and rural locations that do not have the framework to support this. There is then the matter of the locality of the transmitters, which will be required to deliver 5G frequencies.
Although ground based antenna similar to that of 3G/4G networks will provide support, the short delivery distances of 5G wave frequencies will mean they will have to be closer to the end user for maximum benefit. This could mean more antennas are needed to keep fluid connectivity from location to location.
There will also be a few issues with coverage too, as due to the higher frequencies used in 5G applications, it has difficulty penetrating solid objects such as walls, buildings and windows. This could be solved in the short-term with smaller hubs of 5G, which can be implemented in largely populated areas such as major cities.
In terms of speed, it is promised that this network will support significant improvements compared to that of 4G. In recent trials, this has been achieved but for real-world applications, it is yet unknown the exact capabilities. Sharing similar traits to 4G connectivity, speeds may be affected by coverage, signal quality and how many people are using the network at once. Speeds may also not be fully realized, as users do not have the smartphones to exploit the full benefits of 5G.
The cost alone of this infrastructure investment is a huge consideration for companies looking to provide this service and at present only appears to be considered where it makes economic sense.
5G is a mobile data based communication method. While substantially it could be similar to Wifi technology, 5G based services communicate on different radio frequencies to standard "Wifi" style technologies, and they use different hardware and communication methods.
The wave length of the carrier signal is smaller, meaning that towers have to be closer together. from a security perspective, to handle the size of the wavelength, they have split the underlying level (physical) into 5 separate levels. Because of this, the security surrounding each one is going to be hard to secure. it will increase the speed of connection for IOT devices, but we will not see a vast improvement in the speed from a usage perspective.