Wednesday, 8 January 2014


A Survey of 3G Technologies; Vital Tool in National Mobile Telecommunication (NMT) Development
Agbaraji C. Emmanuel and Aririguzo I. Marvis
Department of Electronic and Computer Engineering,
Nnamdi Azikiwe University Awka, Nigeria

Today, almost all fields of human activities rely on the high-speed broadband technologies for their day-to-day activities. The banks for example, are making plans to implement better and more sophisticated services such as cashless banking and other e-transactions as part of the NMT development goals. The 3G network coverage has become a problem in most rural and parts of the urban cities in Nigeria. However, the national mobile telecommunication development goals cannot be achieved without addressing the issue of 3G coverage in the country. The objective of this paper is to investigate the 3G technologies, their applications and the situation in developing nations especially Nigeria. The NMT development was reported to lag behind in the global telecommunication development and 2G networks are still more prevalent in most areas than 3G networks. It was concluded that the full deployment and coverage of 3G network will enhance the success of the NMT goals.
KEYWORDS: 3G, Broadband, CDMA, EDGE, GSM, HSPA, ICT, LTE, Mobile Telecommunication, UMTS.
      I.            Introduction
Information and Communication Technology uptake has continued to grow worldwide [1], with 3G technology [2] as the key or the major driving force towards this achievement and growth. Mobile Broadband is an exciting new technology that allows connection to the Internet without the usual ADSL router and telephone line setup. Using the connection is not limited in the house - as the name suggests it allows connection while mobile as it uses wireless technology, so that the Internet and e-mail can be accessed anywhere (as long as the 3G signal is available). Therefore the usage of the 3G service depends on the availability of the 3G signal in an area.
3G is a term used to represent the third generation of mobile telecommunications technology [2; 3]. This is a set of standards used for mobile devices and mobile telecommunication services and networks that comply with the International Mobile Telecommunications-2000 (IMT-2000) specifications by the International Telecommunication Union [3]. 3G finds application in wireless voice telephony, mobile Internet access, fixed wireless Internet access, video calls and mobile TV [4]. Several telecommunication companies market wireless mobile Internet services as 3G, indicating that the advertised service is provided over a 3G wireless network. Services advertised as 3G are required to meet IMT-2000 technical standards, including standards for reliability and speed (data transfer rates). To meet the IMT-2000 standards, a system is required to provide peak data rates of at least 200 kbit/s (about 0.2 Mbit/s) [4]. Recent 3G releases often denoted 3.5G and 3.75G, also provide mobile broadband access of several Mbit/s to smartphones and mobile modems in laptop computers. There are standards that are typically branded 3G which will be extensively used in this work which include UMTS (Universal Mobile Telecommunication System) and CDMA2000 (Code Division Multiple Access-2000).

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