Discussion Assignment Unit 3 CS 2204-01 Communications and Networking - AY2023-T5 University of the People Majd Alhaddad Mobile Telephones have evolved in a number of ways, from 1G to 4G. Compare them in terms of Standards used and Features. Feel free to mention 5G as well. Mobile communications have changed the way people use to communicate with each other to exchange information, from the first technology (1G) where information was exchanged in the form of basic audio signals, while the second generation (2G) came with many additional features with new capacity and coverage capabilities, followed by the next generation The third generation (3G), which was designed to achieve faster speeds with the mobile broadband experience, while the fourth generation (4G), which was developed later and provides a wide range of communication services, and although communication technology has developed in a short period of time, it is not satisfactory to customers with a growing population, and mobile devices around the world that use these communication facilities expect faster speed and greater services than current technologies, this has led to the development of a new research for communications called fifth generation (5G) which will bring faster speed, exceptional applications and quality of service (QoS) . First generation 1G: This technology relies on standard "non-digital" radio signals, unlike the rest of the later generations that depend on digital signals. This technology is considered old in that it can only deal with voice packets. "I mean, you will not be able to send and receive neither messages nor the Internet." This means only voice calls, unfortunately. The sound quality is very poor. As for the protection, it is bad because the non-digital signal may be easily captured by other wireless devices, and thus intruders will be able to listen to your calls. The only feature that makes this technology better is that the failure rate is lower than other generations. Second generation 2G: It is what is known in all countries of the world as GSM, which is an abbreviation for "Global System for Mobile Communication." This technology relies on digital radio signals, unlike 1G, where this technology can deal with voice packages as well as data packages, but in a very limited way, such as "SMS and E- mail's", in this technology you will notice a significant improvement in the sound in addition to higher protection and less interference during calls, and among the most important advantages of this technology is that it works on smaller phone devices because it does not need to broadcast strong signals in addition to lower energy consumption.
The second generation developed 2.5G: It relies on the same features of the second generation, but it was developed in addition to adding new technologies to GSM such as GPRS EGPRS EDGE and others such as MMS WAP, and the data transfer speed in this technology varies from 28 kilobits to 144 kilobits in the case of using GPRS technology, it may exceed that slightly, in the event Using standards