28-12-2012, 06:34 PM
Wimax (802.16)
1Wimax.ppt (Size: 437.5 KB / Downloads: 49)
History of Wireless
Radio- Jagdish Chandra Bose and Guglielmo Marconi.
Wireless- First patent by Nikola Tesla.
Wireless- Term used for everything for long time
Modern Era
Wireless- is a method of communication that uses low-powered radio waves to transmit data between devices.
Low Powered – Free
High Powered – Government Regulated
Some Wireless Standards
Bluetooth
DECT (Digital Enhanced Cordless Telecommunications)
DSRC (Dedicated Short Range Communications)
HIPERLAN
HIPERMAN
IEEE 802.11
IrDA
RFID (Radio Frequency Identification)
WiFi
WiMAX
xMax
ZigBee
Wimax
Worldwide Interoperability for Microwave Access
A certification mark for products that pass conformity and interoperability tests for the IEEE 802.16 standards
Run by Wimax Forum
Frequency
Originally Working 10 to 66ghz
FDD or TDD.
Now supporting 2 to 11ghz with 802.11a. OFDMA with TDMA access.
Conclusion
Framework for the evolution of wireless broadband
Everything will be coordinated with Wimax