PRESENTED BY:
NILISHA AGARWAL

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INTRODUCTION
WIRELESS means transmitting signals using radio waves as the medium instead of wires.
Characterstics of wireless:
a. Mobility
b. Reachability
c. Simplicity
d. Maintainability
e. Roaming Services
f. New Services
Wireless technologies
 Wireless Wide Area Network (WWAN)
 Wireless Local Area Network (WLAN)
 Wireless Metropolitan Area Network (WMAN)
 Wireless Broadband Access (WBA)
WiMAX
WiMAX is:
 Acronym for Worldwide Interoperability for Microwave Access.
 Based on Wireless MAN technology.
 A scaleable wireless platform for constructing alternative and complementary broadband networks.
 A certification that denotes interoperability of equipment built to the IEEE 802.16 or compatible standard.
What is 802.16a ?
 The 802.16a standard for 2-11 GHz is a WMAN technology.
 The IEEE 802.16 Working Group develops standards that address two types of usage models:
 A fixed usage model (IEEE 802.16-2004).
 A portable usage model (IEEE 802.16e).
WiMAX Speed and Range
 Initial speed of nearby 40MBPS
 Could be deployed in a variety of spectrum bands: 2.3GHz, 2.5GHz, 3.5GHz, and 5.8GHz
WiMAX SALIENT FEATURES
 Two types of services:
 Non-line-of-sight
 Line-of-sight
 Very high peak data rates
 Adaptive modulation and coding
 WiMAX uses OFDM
BUILDING BLOCKS
A WiMAX system consists of two major parts:
 A WiMAX base station.
 A WiMAX receiver.
CONNECTING TO WiMAX
1. WiMAX gateways
2. WiMAX USBmodem
3. WiMAX Mobiles
 Ist mobile - Max 4G by HTC(Nov 12th,2008)
 IInd mobile – EVO 4G by HTC(March 23rd ,2010)
Wimax forum
 The name "WiMAX" was created by the WiMAX FORUM, which was formed in June 2001.
 Non profit organisation .
 Role is to promote knowledge about WiMax
WiMAX and Wi-Fi Comparison
conclusion
WiMAX is better than Wi-Fi:
 as it satisfy a vareity of needs.
 Can provide a wideb area range.
 Supports high bandwidth solution.