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Wimax POWERPOINT

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WiMAX

SHOWED BY: ALAN SHIBU


S5 CHE
16150796
CONTENTS
1.Introduction…………………..
2.What is WiMAX……………..
3.Speed……………………………..
4.Diagram of WiMAX……….
5.WiMAX……………………………
6.IEEE 802.16………………………
7.WiMAX Radio…………………
8.Advantages………………………
9.Disadvantages…………………
10.Frequency Plan……………….
11.Transfer Rate………………….
12.806.16 2004 Standard……….
13.WiMAX is Not WiFi…………..
14.Fea tures…………………………..
15.Characterstics………………….
16.Conclusion………………………
Introduction

 Wireless Internet access nowadays has become ubiquitous in everyday

lives.

 Examples of wireless technologies includes, Wi-Fi (IEEE 802.11),

Bluetooth, WiMAX, and more.

 It is based on ip wireless broadband


WiMAX

 WiMAX may be a viable alternative for broadband access that has been

economically unavailable.

 WiMAX access was used to assist with communications in Aceh, Indonesia, after

the tsunami in December 2004.

 Wimax Can provide access to (50 km) in BWA

(broadband wireless access)


SPEED

 WiMax technology has the potential to deliver high-speed Internet

access to rural areas and urban area not serviced by cable technology or

the demand of mobile Internet is high.

 WiMax also viewed as an alternative to satellite Internet services.


Diagrom Of Wimax
WiMAX

 WiMAX (Worldwide Interoperability for Microwave


Access).
 provides wireless data over long distances in a variety of
ways, from point-to-point links to full mobile cellular type
access
 It is based on the IEEE 802.16 standard = WirelessMAN
IEEE 802.16

 a standards-based technology enabling the delivery of last mile

wireless broadband access as an alternative to cable and DSL.

 The standard is called 802.16-2004


WiMAX Radios
A radio might be thought of as a networking device similar to a router

or a bridge in that it is managed by software and is composed of circuit

boards containing very complex chip sets.


Advantages

 Connects Wi-Fi hotspot area with each


other and to the other parts of the Internet.
 provides a wireless alternative to cable and
Digital Subscriber Line (DSL)
 High speed data transfer
Disadvantages
 WiMax deployment for further Subscriber Stations (SS) from the
Base Station (BS) requires Line of Sight (LOS) connectivity where
there should not be any blockages of interference between SS and
BS.

 Weather and other environmental factors

 It is difficult to achieve the maximum data rates unless the SS and


BS are located on high places.

 WiMAX is very power intensive technology and requires strong


Frequency Plan
 Part of the site survey process is to determine a viable frequency plan.  The wireless
operator must make maximum use of limited spectrum assets.  How does one do
that?
Transfer Rate

 The fastest WiFi connection can transmit up to 54 megabits

per second under optimal conditions.

 WiMAX should be able to handle up to 70 megabits per

second.
802.16-2004 standard

 wireless solution for fixed broadband Internet access that

provides an interoperable, carrier-class solution.

 perates in the licensed 2.5-GHz, 3.5-GHz and license-exempt

5.8-GHz bands.

 Range about 50 KM
WiMAX is not Wi-Fi
General Features of WiMAX:

 OFDM-based physical layer: a scheme that offers good


resistance to multipath, and allows WiMAX to operate in
NLOS conditions
◦ OFDM = Orthogonal Frequency Division Multiplexing
 Very high peak data rates
 Scalable bandwidth and data rate support
 Link-layer retransmissions
 Support for TDD and FDD
◦ TDD: Time Division Duplexing
◦ FDD: Frequency Division Duplexing
Characteristics

 Flexible and dynamic per user resource allocation.


 Support for advanced antenna techniques.
 Quality-of-service support
 Robust security
 Support for mobility
Conclusion

 WiMAX advantages exceed the performance and cost


advantages that people talk about always.
 WiMAX offers developing and poor areas wireless access
without the need to a proper infrastructure such as cabling
and jacking the wireless.
THANK YOU
A
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Q
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