5G
The term 5G basically refers to the very next and the newest mobile wireless standards based on the IEEE 802.11AC standard of broadband technology. Although, a formal standard of 5G is yet to be set.
We have come across the words such as 2G, 3G, 4G and 5G very often. But, what does they mean exactly ?
“G” here stands for generation (Generation as in the next generation of wireless technologies). Each generation is believably faster, more reliable and more secure than the previous one. Each of the generation has some communication standards that must be met in order to officially use the “G” terminology. In telecommunications’ terminology, a communication protocol is a collection of rules and regulations which allows various entities to transmit information or data via any physical quantity. The protocol, thus, describes the various rules, syntax, semantics and synchronization of communication and also the possible error recovery methods. The implementation of protocols may be implemented by hardware, software or a combination of both.
5G
5G planners intend to develop a capacity higher than the current 4G, allowing a higher density of users; supporting massive and ultra reliable machine communication. 5G development and research also aims a latency lower than the 4G devices and a improved battery consumption for the better implementation of the Internet of Things(IoT). There is currently no final standards for 5G deployment. Along with providing faster speeds, they predict that 5G networks will also be meeting new use cases such as Internet of Things(IoT) as well as broadcast like services and lifeline communication in times of natural disasters.
5G Standards
Here are the requirements that a 5G standard should fulfil, according to the next generation mobile networks community :
· Data rates of tens of MB per second for tens of thousands of users.
· For metropolitan areas, data rates of 100 MB per second.
· 1GB per second at a time for many workers on the same office floor.
· Many hundreds of thousands of concurrent connections of wireless sensors.
· Significantly enhanced spectral efficiency as compared to 4G.
· Improved coverage.
· Enhanced signalling efficiency.
· Latency reduced significantly as compared to 4G.
5G VS 4G
· With 5G, there will be an increase in download speeds up to 10 GB per second, which means that a full HD movie would be downloaded in a just few seconds.
· There will also be a significant reduce in latency, giving people faster load times.
· In short, it will give wireless broadband the capacity that it requires to function thousands of connected devices that will eventually reach our homes and workplaces.
Challenges with 5G
· New generations of mobile are generally assigned with newer frequency bands and wider spectral bandwidth per frequency channel (for 1G nearly 30KHZ, for 2G nearly 200KHZ, for 3G nearly 5MHZ and for 4G nearly 20 MHZ). But, technicians debate that there is little space for larger channel bandwidths and newer frequency bands suitable for the land-mobile radio.
· The higher frequencies would overlay the communication satellites’ K-band transmissions. From the point of view of the user, the previous mobile generations have implied substantial increase in peak bit rate (i.e. physical layer net bit rates for short distance communication) nearly 1Gb per second to be offered by 5G.
· The cost of implementation of 5G would be more and while the new mobile phones will apparently have it integrated, other handsets could be deemed outdated.
Status of 5G
5G technology is expected to be available in US, Turkey, Japan, China by 2020 and in Sweden and South Korea by 2018.