ISSN : 2230-7109(Online) | ISSN : 2230-9543(Print)
Evolution of Mobile Wireless Communication Networks: 1G to 4G
College of Information Science and Technology, Nanjing Forestry University, Nanjing, China 3 Dept. of Computer Science, Punjabi University, Patiala, Punjab, India 4 Dept. of ECE, CGC Group of Colleges, Gharuan, Mohali, Punjab, IndiaE-mail : firstname.lastname@example.org were specified by the ITU as part of the International Mobile Telephone 2000 (IMT-2000) project, for which digital networks had to provide 144 kbps of throughput at mobile speeds, 384 kbps at pedestrian speeds, and 2 Mbps in indoor environments. UMTS-HSPA and CDMA2000 EV-DO are the primary 3G technologies, although recently WiMAX was also designated as an official 3Gtechnology. 3G technologies began to be deployed last decade.
Amit Kumar1; Dr. Yunfei Liu2; Dr. Jyotsna Sengupta3; Divya4
Abstract Mobile communications systems revolutionized the way people communicate, joining together communications and mobility. A long way in a remarkably short time has been achieved in the history of wireless. Evolution of wireless access technologies is about to reach itsfourth generation (4G). Looking past, wireless access technologies have followed different evolutionary paths aimed at unified target: performance and efficiency in high mobile environment. The first generation (1G) has fulfilled the basic mobile voice, while the second generation (2G) has introduced capacity and coverage. This is followed by the third generation (3G), which has quest for data athigher speeds to open the gates for truly “mobile broadband” experience, which will be further realized by the fourth generation (4G). The Fourth generation (4G) will provide access to wide range of telecommunication services, including advanced mobile services, supported by mobile and fixed networks, which are increasingly packet based, along with a support for low to high mobility applicationsand wide range of data rates, in accordance with service demands in multiuser environment. This paper provides a high level overview of the evolution of Mobile Wireless Communication Networks from 1G to 4G. Keywords Mobile Wireless Communication Networks, 1G, 2G, 3G, 4G, Mobile Broadband I. Introduction The last few years have witnessed a phenomenal growth in the wireless industry, both in termsof mobile technology and its subscribers. There has been a clear shift from fixed to mobile cellular telephony, especially since the turn of the century. By the end of 2010, there were over four times more mobile cellular subscriptions than fixed telephone lines (see Fig. 1). Both the mobile network operators and vendors have felt the importance of efficient networks with equally efficient design.This resulted in Network Planning and optimization related services coming in to sharp focus [1, 7]. With all the technological advances, and the simultaneous existence of the 2G, 2.5G and 3G networks, the impact of services on network efficiency have become even more critical. Many more designing scenarios have developed with not only 2G networks but also with the evolution of 2G to 2.5G or evento 3G networks. Along with this, inter-operability of the networks has to be considered . 1G refers to analog cellular technologies; it became available in the 1980s. 2G denotes initial digital systems, introducing services such as short messaging and lower speed data. CDMA2000 1xRTT and GSM are the primary 2G technologies, although CDMA2000 1xRTT is sometimes called a 3G technology because itmeets the 144 kbps mobile throughput requirement. EDGE, however, also meets this requirement. 2G technologies became available in the 1990s. 3G requirements
Source: ITU World Telecommunication/ICT Indicators database. Fig. 1: Global ICT Developments, 2000-2010  The ITU has recently issued requirements for IMT-Advanced, which constitutes the official definition of 4G. Requirements include...