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Wang, “Technologies and Standards for TD-SCDMA Evolutions to IMT-Advanced,” IEEE Communications Magazine, Vol.
And even if such limitations can be overcome using other complementary backbones or equipments (optical fibers or microwaves links, remote switching units.etc), the extra cost of these new equipments, of their deployment and their operation directly impacts the business model. So, both the “Demand and Cost’’ factors are the major barriers to the broadband access as identified by (ITU World Telecommunications Development report 2003). The various usage scenarios to illustrate the ability of Wi MAX to address different applications are given in sections IV and V. Wi MAX stands for “World Interoperability for Microwave Access’’.
It is a broadband wireless technology that supports fixed, nomadic, portable and mobile access.
Two wireless technologies, Wi MAX based on IEEE standards and LTE standardized by 3GPP, are two competing technologies, nevertheless, are very technically similar.
This competition started with the advent of their pre-4G versions (802.16e for Mobile Wi MAX and 3GPP release 8 for LTE) and continued with the advent of their 4G versions (Wi MAX 2.0 based on IEEE the advantage of LTE.
The idea that access to information opens doors to wider economic and social development opportunities is not new.Moreover, while developed countries already have existing telecommunication infrastructure ready to evolve and the financial resources to invest and pay for new services, developing countries still suffer from the lack of basic infrastructures (not only telecommunication infrastructures, but also power supply, roads), and more crucial, have great difficulty to mobilize the necessary financial resources. in the second case because, until now, existing wired or wireless technologies have inherent limitations either in performances or in capacity (e.g.the 6 Km maximum distance from the exchange for digital subscriber line (DSL)) or the Line-of-Site (LOS) Customer Premise Equipment (CPE) location from the base station for wireless access. Section III describes why and how Wi MAX will be a key element in this new important worldwide objective to provide an equitable and affordable access to ICTs infrastructure and services.In 1984, the “Missing Link Report’’ pointed to the fact that the lack of telecommunication infrastructure in developing countries impedes economic growth, but with a scope limited to access to telephones rather than today’s wider concept of Information and Communications Technologies (ICTs) access and usage.In 1996, the International Telecommunications Union (ITU) initiated a United Nations project for the “Right to Communicate’’ aimed at providing access to basic ICTs for all, with motivation to reduce information poverty for developing countries.Wi MAX is largely supported by the computer and the telecommunications industry, cost-effective and standard base.It is engineered to deliver the latest type of ubiquitous fixed and mobile services such as Voice 0ver Internet Protocol (Vo IP), Information Technology and Video at very low cost.Wi MAX systems are able to cover a large geographical area, up to 50 km and to deliver significant bandwidth to end-users up to 72 Mbps.To meet the requirements of different types of access, two versions of Wi MAX have been defined.Looking closer to the statistics as published by the different official bodies such as ITU or the World Bank in Figure 1, it is clear that the gap in ICTs access between developed and developing countries do exist (ITU World Telecommunications Development report 2003).There are many reasons for the barriers why, until now, broadband ICT access was mainly deployed in developed countries and more precisely in urban areas as shown in Figure 2.