1G – Analog Cellular Network Communication:
Cellular technology was invented by Joel Engel and Richard Frenkiel, two researchers of AT&T Labs. The introduction of cellular technology replaced large broadcast towers, with small low-powered towers. This was a foundation for the first generation of cellular technology. The first commercial automated cellular network (the 1G generations) was launched in Japan by NTT (Nippon Telegraph and Telephone) in 1979.
2G – Digital Networks:
In the mid of nineties, several versions of 2G or second generation of cellular communication emerged. This generation’s cellular communication was different from the previous generation because it used digital communication instead of analog communication. Primarily 2G uses GSM standards.
The second-generation introduces a new way of communication, for example, it provided SMS text messaging. Today most of us prefer sending text messages instead of placing voice calls. The use of 2G technology requires a strong digital signal to help mobile phones work properly.
Let’s have a look at two variants of 2G technology:
- 75 –EDGE
2.5G using GPRS (General Packet Radio Service) technology provide data rate from 56Kbit/s up to 115 Kbit/s. It can be used for services such as MMS, WAP, and Internet communication.
2.75 – EDGE (Enhanced Data Rate for GSM Evolution) technology is an extended version of GSM. It allows clear and fast transmission over GPRS. EDGE data transfer rate is approx. 300 Kbit/s.
3G – High-Speed Internet Protocol data Network:
As the 2G users increased, most of the people found that the 2G network speed is not satisfactory. It became clear that demand for data services was growing like accessing the internet with high speed. So the several industries began to work on the next generation or third generation of cellular network technology.
The main difference between 3G and 2G is that ‘Packet switching’. 3G uses packet switching while 2g uses circuit switching for data transmission. Packet switching is much faster than circuit switching.
4G – Increases bandwidth of data communication:
Consequently, peoples were demanding more data speed over 3G, and 4G is the result of this demand. The expectation of the 4G technology is the high quality of audio/video streaming over end to end on the Internet.
5G – It has more than high bandwidth:
It will become the next generation for cellular communication. 5G provides you high-quality speed on internet protocol. It is much faster than the 4G data rate. But one of the main issues with this cellular technology generation is – Its frequency range. It uses a multi GHz frequency range to provide high speed and it is not good for human beings and the environment. I am not judging this cellular generation. It is my opinion on this.
That’s how we have seen an evolution in mobile phone communication networks.
Thanks for reading. See you soon with another exploration!