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Fundamentals of WIMAX

Broadband wireless for every one

By

Dehbi Sahbi

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Contents: Wimax Overview ? Architecture How Wimax Work? Use and Features of Wimax Wimax vs WiFi Wimax Deployement Disvantages of Wimax

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Wimax Overview WiMAX (worldwide interoperability for microwave access)

broadband wireless access (BWA) offering fast broadband

connection

trade marked of Wimax forum

The IEEE has designated the number 802.16 for broadband wireless access and the protocol on which the technology of WiMAX is based.

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WIMAX Architecture

• Base station (BS): The BS is responsible for providing the air interface to the MS. Additional functions that may be part of the BS are micromobility management functions,

• Access service network gateway (ASN-GW): The ASN gateway typically acts as a layer 2 traffic aggregation point within an ASN.

• Connectivity service network (CSN): The CSN provides connectivity to the Internet, other public networks, and corporate networks. The CSN is owned by the NSP and includes AAA servers that support authentication for the devices, users, and specific services. The CSN is also responsible for IP address management, support for roaming between different NSPs, location management between ASNs, and mobility and roaming between ASNs.

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How Wimax work?

Wiamx Base station Wimax receiver

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• Example of Wimax device

(sumsung mondi mobile device)

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Use of Wimax Providing portable mobile broadband connectivity across

cities and countries through a variety of devices.

Providing a wireless alternative to cable and DSL(digital subscribe line) for last mile broadband access

Providing Data, telecommunication (VoIP) and (IPTv) services (triple play)

Support roaming and internetworking.

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Features of Wimax

Offers high speed broadband access

Support reliability of data

Support multipath (OFDM based)

Wimax mobility

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• Wimax forum statistic of wimax`s users

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Wimax vs WiFi

Wimax Vs WiFi

• Wimax coverage is about 30 miles . Coverage is limited to 1.5 miles

• It provides metropolitan area network(MAN) Provides local area networkt • It is a high cost network Low cost network• It offers high speed of broadband access Offers short range of data transfer

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Thank you