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Tuesday, July 30, 2013

PPT On 4G Technology

Presentation On 4G Technology

4G Technology Presentation Transcript:

4G is the term used to describe the next level of evolution in the field of wireless communication
4G , the fourth generation technology is the mobile or cellular based technology
It is the latest and ultra fast technology
 4G is a step up from 3G, which is currently the most widespread, high-speed wireless service.

3.4G, the successor of 3G, will soon become the standard for cellular wireless
   The technology is currently available in some countries but it is still being perfected

The aim is to achieve “ultra broadband speed” – to be counted in gigabytes per second
4G Technology and its predecessors 3G, 2G and 1G are all from the same family of cellular communication standards, which are verified by the ITU.

The earlier telephone systems, which were the original ones, are now called 1G.
Definition: In the world of cell phones, 1G signifies first-generation wireless analog technology standards
The technologies supported were AMTS, TACS, NMT
1G was introduced as the analog standard for cell phones in the 1980s.

Definition: In the world of cell phones, 2G signifies second-generation wireless digital technology.
2G utilized various digital technologies including CDMA, TDMA  etc.
And used RISC processor 
2G wireless technology replaced 1G and is all digital.

7.Also Known As: second-and-a-half generation cell phone technology
Alternate Spellings: 2.5-G
2.5G wireless technology is a stepping stone that bridged 2G to 3G wireless technology.

8.3G is 3rd generation cell-phone technology
  The first pre-commercial 3G network launched in May 2001 by NTT DoCoMo in Japan.
It is fully digital multimedia technology.
It established its roots in late 2000
Third Generation technology now can easily be found all over the world on nearly all standard  technologies CDMA,W-CDMA etc
Extension to higher data rates is difficult due to excessive interference between services.

It is difficult to provide a full range of multirate services, all with different QoS and performance requirements ie, it is not a fully integrated system.

10.As far as mobility is concerned, the speed of data rate decreases when we move from one point to another

  With WCDMA based 3G, as the data speed increases the coverage area of the cell become smaller and smaller. For data rates of 2 Mbps and above, a WCDMA cell can cover only an area of 10 meter radius

11.Why 4G?
The 3G-4G transition  will of course be accompanied by ongoing evolution of already anticipated 3G services, such as:
send/receive e-mail
Internet browsing (information)
on-line transactions (e-business)
location-dependent information
large-file transfer.

12.4G will need to be highly dynamic in terms of support for
The users’ traffic
Less air interferences
Quality-of-service types
Mobility patterns.

Definition: 4G wireless is the term used to describe the fourth-generation of wireless service.
Provides data transfer rates up to 100mbps
For stationery users it aims to the highest speed of 1Gbps
The goal is to have data rates up to 20 Mbps, even when used in such scenarios as a vehicle traveling 200 kilometers per hour.

15.Different wireless phone companies uses different technologies for its 4G network
For ex: Sprint uses WiMAX technology while Verizon wireless uses LTE technology
All these technologies aims to provide highest transfer rate of data
4G wireless technology is 4 to 10 times faster than today’s 3G network

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