05-10-2012, 05:36 PM
4G
4g new.ppt (Size: 2.3 MB / Downloads: 39)
WHY 4G
Although a large number of Internet users now enjoy high-speed access, there are still vast geographic regions where broadband services are either prohibitively expensive or simply unavailable at any price.
Researches and technology are more needed for rural areas where the development is lacking.
WHAT IS 4G
The 4G technologies are all about improving the performance of today’s mobile networks, and also revolutionizing the model to create a truly ultra-broadband mobile experience.
4G is a term used to describe the next complete evolution in wireless communications
The international telecommunications regulatory and standardization bodies are working for commercial deployment of 4G networks roughly in the 2012-2015 time scale.
FROM 3G TO 4G
Limitation to meet expectations of applications like multimedia, full motion video, wireless teleconferencing
Difficult to move and interoperate due to different standards hampering global mobility and service portability
OBJECTIVES OF 4G
4G will be capable of providing between 100 Mbit/s and 1 Gbit/s speeds both indoors and outdoors, with premium quality and high security
It will be multiple inputs and multiple outputs (MIMO) system based
Data and streamed multimedia can be given to users on an "Anytime, Anywhere" basis, and at higher data rates than previous generations.
4G IN RURAL AREA
The reasons for this are the low population density in rural (in comparison with cities) and the low paying capacity of users there.
The cost of technology is important factor in deciding its applicability for rural use.