Evolution of 3G,4G and Evolution of 3G,4G and beyond 5G beyond 5G systemssystems

3G Services include:

Global roaming

Superior voice quality and video conference

e-mail, personal organizer

Information for web surfing, music, news, corporate intranet, transportation

Purchasing – on-line shopping / banking, ticketing, gambling, games, etc.

4G is a conceptual framework and a discussion point to address future needs of a high speed wireless network

Expected to emerged around 2010 – 2015

4G will bring almost perfect real world wireless or called “WWWW: World Wide Wireless Web

5G is a completed wireless communication with almost no limitation; somehow people called it real wireless world

5G wireless system is only theory and not real

CELLULAR NETWORK

FREE SPACE COMMUNICATION

MICROWAVE TV TRANSMISSION

BLUETOOTHCELLULAR TELEPHONY SERVICES

WIRELESS VIDEO SATELLITE

WIRELESS SOLUTIONS FOR

business and industry schoolspeople on the go like

Real Estate Agents, Stock Brokers, Doctors, Pilots

Personal and home security

police and emergency vehicles

high quality services low cost per data bit , as well as

reliability 4G becoming fast and very cost-

effectivehigh resolution & large bandwidthhighest downloading &uploading

speed

wireless systems becoming an important infrastructure in our society, network and internet field.

In this paper, it is briefly introduced the history background of 1G to 5G.

A virtual global system is a good solution that can efficiently connect many dedicated wireless systems including 2G to 4G cellular systems.

wireless LAN, broadcasting systems, etc. offering more services and smooth global roaming with inexpensive cost.