Fourth Generation [4G]:
Fourth generation also known as "Beyond 3G", is used to describe the next complete evolution in wireless communications. It is also termed as MAGIC - Mobile Multimedia. In a 4G, voice, data and streamed multimedia can be given to users on an "anytime, anywhere basis" and at higher rates than previous generations. It also provide a seamless mobility.
4G will be capable of providing between 100 Mbit/s and 1 Gbit/s speeed's with premium quality and high security.There are certain objectives projected for 4G.these objectives include that 4G system will be a fully IP-based integrated system.
Some of the advantages of 4G are given below.,
Network architecture: Hybrid - integration of wireless LAN (WiFi), Blue tooth,Wide area
Frequency band: 2 - 8 GHz
Component Design: Smart antennas, SW multiband, wideband radios.
Bandwidth: 100+ MHz
Date Rate: 20 - 100 Mbps
Access: MC-CDMA or OFDM
Forward error correction: Concatenated coding
Mobile Top speed: 200 kmph
Internet Speed in 4G:
4G speeds could be as high as 100 Mbps. Thus, 4G will represent another quantum leap in mobile internet speeds and picture quality. 4G could offer three dimensional visual experiences for the first time.
4G finds applications in
1. Networking in communication
2. Vehicular Adhoc networks.
3. Wireless Vo IP
5. Mobile IPTV