4g Of Mobile Communications Information Technology Essay
4g Of Mobile Communications. 3G mobile systems either are currently being or will be soon deployed from 2001 to 2004 in different regions of the world. Certainly, there will be a huge potential market in 3G in the world, simply since it can provide wideband multimedia services with data rate up to 2Mbps.
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Write My Essay For MeHowever, with both economic growth and technology development of the world, multimedia services with even higher data rate (i.e. 20Mbps) will be necessary.
Discussions on 4G mobile communications have already been started today in the world. Therefore, extensive international R&D and standardization activities are required to solve many technical challenges. In this chapter, the forecast of mobile communications and key techniques of 4G will be presented.
Introduction
Mobile communications have been one of the hottest areas
of telecommunications, famous for fast development and growth. First steps of cellular telephony reach back to the year 1981 which is the year of introduction of Nordic mobile telephone (NMT), termed also the first generation
In 2006 there are approximately 2.5 billion mobile phone users worldwide. 3G has been introduced to most of the developed countries around the world and has already reached the number of 100 million subscribers in 2006. It seems that the number of mobile devices connected to Internet will soon exceed the number of static desktop clients. Next generation has not been defined yet but various scenarios and ideas have been proposed. In this entry
we summarize some most important published predictions
of future mobile communications, and its main concepts
and technology background. It seems that next generation
is going to be ”user-centric”, which means that user
needs and wishes will drive the research and development.
Undoubtedly high data transfer rates, quality of service
(QoS) and continuous coverage will be the most important
features. We point out the key technologies which will
form the basic platform for future mobile networks
and list the most important forums and research groups
in this area
A4G network is the fourth generation of wireless communication. While still in development, the foundations for the replacement of the present network is………………………..
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