4G (Fourth-Generation technology)

4G is development of 3G technology. The official name of this 4G technology is IEEE ( Institute of Electrical and Electronics Engineers ) is "3G and beyond".

4G is staying sieve 500 time fast than CDMA2000 can provide speeds of up yo 1Gbps if you are at home or 1000 Mbps when traveling. Can imagine how quickly access the data we get, it is certain that this fourth- generation communication technologies further reduced the world. Besides this is the most effective one of the main solution for the Internet network in the village because of better plant 1 of 4G tower for the miles and miles away, rather than by blanketing fields with fiber optic cable.

4G systems will be able to provide a comprehensive IP solution where voice, data, and multimedia flows can be up to users anything and anywhere, on average the data is higher than the previous generation. There is no formal definition for 4G. However, there are some opinions that aimed to 4G, namely : 4G will be a fully integrated IP - based system. 4G will offer all kinds of services at affordable prices. Each 4G handset will automatically have IP numbers v6 comes with the ability to interact telephon internet - based Session Initiation Protocol (SIP).

Excess Technology 4G LTE  :
-  LTE technology offers speeds up to 300 Mbps downlink and 75 Mbps uplink
- LTE uses Orthogonal Frequency Division Mutiplexing (OFDM) , which transmits the data in through many operators of radio spectrum , each of 180 kHz
- Supports frequency bands currently used by the systemIMT & ITU - R
- For urban , higher frequency band and is used to support high- speed mobile broadband 
- Supports MBSFN ( Multicast Broadcast Single Frequency Network ) 
- Improved support for high mobility
 
Disadvantages of 4G LTE technology : 
- Costs for the relatively expensive new network infrastructure 
- The network must be updated then the new equipment to be installed 
- LTE uses MIMO ( Multiple Input Multiple Output ) , would require an additional antenna on the beam base network for data transmission 
- As a result, in case of renewal of the network , the user needs to buy a new mobile device in order to enjoy a network that supports LTE technology