Fourth Generation (4G) Communications systems for new generation technology. 4G technology is the latest technology after the 3G (third generation) systems. This 4G Communication systems still solving the remaining problems of 3G systems.

The standard applications of 4G communication systems to expand a wide range of new latest services like wireless communications. Depending upon data rates it introduces different types of wireless broadband communications systems.

One word which give us brief idea about 4G communication systems. MAGIC – “Mobile multimedia, anytime anyplace, Global mobility support, integrated wireless solution, and customized service”. Main future visions of 4G communications systems are to expand new network services such are wireless communication services. 4G systems are providing several types of wireless broadband communication systems, it’s mainly depends upon data transfer rates.”Cellular broadband wireless access systems” are the major part in 4G communication systems which show more attraction to develop the mobile communication technology.

New technologies always replace the old one technology. Like the way in future 4G communication systems occupies new place in wireless communication systems by replacing 3G systems. By using 4G systems we can access huge amount of data from anywhere at any time to wide range of information and services.

The main key features of 4G are receiving a large volume of information, data, pictures, video and so on. The future 4G systems infrastructures will consist of set of various networks using IP-internet protocol as common protocol by this users will be able to access every application and environment.

For high quality , streaming video and audio , these 4G systems will be able to accommodate growing consumer and business expectations. Few days back the Japanese local papers says that Japan, china, South Korea plan to work together for developing new generation technologies like Fourth generation mobiles. 4G orientated meeting was happened in Seoul in March with officials from the above countries, they agreed to share information and work together on developing 4G mobile phones

This 4G technology much faster communication speed than 3G systems. That’s nearly “100 Mbps”. 4G systems are using new latest protocol version “IPV6″ (version 6). 4G communication systems are having high capacity and diverse usage formats. These formats located in optical fibers and wireless LAN.

The 4G systems are showing more scope on cellular communication systems. Still some companies they are incorporating latest technical changes into cellular technology. They are use to call “3.5G”. In future 4G networks may replace all existing 2.5G and 3G technologies