WIMAX Manish Srivastava

WHAT IS WIMAX? Users today mostly use Broadband

connections,Wi-Fi and cellular networks to access the Internet.

WiMAX is IP based 4G technology wireless broadband access technology performance similar to Wi-Fi, with the

coverage and QOS (quality of service) of cellular networks.

o  WiMAX=Worldwide Interoperability for Microwave Access

Based on IEEE 802.16 standard.

Founded by Ensemble, CrossSpan, Harris & Nokia.

Ensures compatibility and interoperability between broadband wireless access(BWA) equipment.

Intended for WMAN(wireless MAN).

THE WIMAX FORUM

The WiMAX Forum is a non profit organization formed to promote the adoption of WiMAX compatible products and services

A major role for the organization is to certify the interoperability of WiMAX products.

Another role of the WiMAX Forum is to promote the spread of knowledge about WiMAX.

o GOAL OF WiMAX To provide high speed Internet access to home

and business subscribers, at a data rate of 30-40 Mbps, with the 2011 update providing upto 1 Gbps for fixed stations

o COVERAGE RANGE OF WiMAX

WiMAX can provide broadband wireless access (BWA) up to 30 miles (50 km) for fixed stations, and 3 - 10 miles (5 - 15 km) for mobile stations.

Wimax Technology OverviewConsists of:oBase Station oAccess Point oSubscriber Station.  

The data Traffic channels, which goes through the Base Station .Bandwidth Allocation for Radio Channel is done by Base Station.

Types of Link are :Uplink (from Subscriber Station to Base Station )Downlink( Base Station to Subscriber Station )`

InfraStructure of Wimax Technology

Wimax Tower : Its looks like Normal cell Phone Towers.

Wimax Receiver: Receiver and Antenna looks like a Small Box.

WIMAX ARCHITECTURE & DESIGN

Fixed WiMAX for P2P & PMP

WIMAX VS WI-FI

Wimax coverage is about 30 miles.

It provides metropolitan area network(MAN).

Wimax network provides Quality of Service(QoS).

It is a high cost network.

It offers high speed of broadband access

Wifi coverage is limited to 1.5 miles

It provides Local area network.

Wifi needs effort to stay connected with a specified access point.

It is a low cost network.

It offers short range of data transfer.

WiMax spectrum is more economical than 3G.

The price paid per Hz is as much as

1000 times lower than for 3G spectrum!!

Why WiMAX over 3G?

The bandwidth and range of WiMAX make it suitable for the following potential applications:Providing portable mobile broadband connectivity across cities and countries through a variety of devices.Providing a wireless alternative to cable and digital subscriber line (DSL) for "last mile" broadband access.Providing data, telecommunications (VoIP) and IPTV services (triple play).Providing a source of Internet connectivity as part of a business continuity plan.Smart grids and metering

Uses of WiMAX

Finally, lets have a look at some

WiMAX enabled products!!!