Wireless technologies can be classified in different ways depending
on their range. Each wireless technology is designed to serve a
specific usage segment.
o WIRELESS WIDE AREA NETWORK (WWAN)
o WIRELESS PERSONAL AREA NETWORK (WPAN)
o WIRELESS LOCAL AREA NETWORK (WLAN)
o WIRELESS METROPOLITAN AREA NETWORK (WMAN)
Considering 4G characteristics, expected scenarios and market
trends,we can find out strengths, weaknesses,opportunities
and threats of 4G with better understandings.
What is wireless ?
Wireless technologies are used for tasks as simple as switching
off the television or as complex
Now wireless keyboards, PDAs, Lap’s and cellular phones have
become part of our daily life.
WiMax Speed and Range
The IEEE wireless(WIMAX) standard has a range of up to 50
Wimax Can deliver broadband at around 75 megabits per second
Wimax can approved in January 2003, to provide operations in
the <11GHz spectrum range ie., 2.3GHz, 2.5GHz, 3.5GHz, and
WiMAX - Major Benefits
This technology offers a high speed, secure, sophisticate, last
mile broadband service, and cheap solution to certain rural access
In a fixed wireless communication, WiMAX can replace the
telephone company's copper wire networks, the cable TV's
coaxial cable infrastructure.
WiMAX fills the gap between Wi-Fi and Cellular, thus providing
vehicular mobility, and high service areas and data rates WiMAX
developments have been rapidly moving forward