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Presented To: Sir Taimoor sb

Presented By:M.Sheraz Anjum 07-16

Bukhtyar Ali 07-18Khurram Shahzad 07-32

BS(IT)5th

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Wireless Technology

Wireless phones are found in virtually every corner of the planet.

2.5 billion people around the world using this technology

Improved Productivity of employees. Wireless telephony has made the world a

smaller place.As with wireless voice, wireless data is

quickly becoming a necessary part of our daily lives.

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EVDOEVDO is a telecommunication standard for

the wireless transmission of data through radio signals.

Broad Band Network.standardized by 3rd Generation Partnership

Project 2 (3GPP2).Uses two multiplexing techniquesTDMACDMA

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SynonymsIs an abbreviation of "Evolution, Data Only"

.OR

Is an abbreviation of "Evolution, Data Optimized" .

Official name is:"CDMA2000, High Rate Packet Data Air

Interface".

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HistoryEV-DO Release 0 was first launched in 2002.EV-DO, consumers experienced 400-600

Kbps of average downlink throughput with bursts up to 2.4 Mbps.

4 to 10 times faster than data over CDMA2000 1X (also called 1xRTT).

EV-DO was designed to co-exist with CDMA2000 1X.

The coverage area, frequency plans and antenna are the same as CDMA2000 1X.

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HistoryEVDO is first mass market mobile broadband

technology EVDO quickly became the most widely

deployed wireless broadband standard in the world.

On August 2007, the EVDO Release 0 networks of 77 operators

Served more than 65 million subscribers in 46 countries worldwide.

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History The success of EV-DO Release 0 led to the

development of EV-DO Revision A (Rev. A) and Revision B (Rev. B).

Rev. A improves “uplink and downlink performance”, “increases capacity” and support for applications such as “VoIP and video telephony”.

EV-DO Rev. B improves “higher rates and multicarrier support”.

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Working of CDMAUses advanced mathematical techniques.Allow multiple wireless devices to transmit

simultaneously on the same frequency. Every device is assigned a “unique

mathematical signature”.Applies this signature to the original signal

and transmits the modified signal. A receiver applies the inverse of the

mathematical operation to recover the original signal.

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Why EVDO…?

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Bukhtyar Ali 07-18

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IP Based CommunicationTraditional wireless networks create a

physical path between receiving and sending devices.

EVDO used IP as for internet.

IN EVDO:Each packet is sent independently.Saves bandwidth for use by other devices.

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EXAMPLES OF Saving BandwidthWhen neither party on a phone call is

speaking, the connection consumes no bandwidth because there are no packets to send.

when an internet web site is accessed, no bandwidth is used until the site starts sending the web page.

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ThroughputEVDO has a theoretical throughput of 2.4 MBPS.

This is as fast as many residential DSL and cable broadband connections.

A significant advantage of EVDO over competing technologies is that it uses the same broadcasting frequencies as existing CDMA networks on low cost.

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What is Qualcomm?Wireless Telecommunication research and

development company.Produced impressive demonstrations of EVDO's

capabilities. EXAMPLE Of Demonstrations:A video conference was conducted with a

participanttraveling in a car at 60 miles per hour (96 km/hour). In another demonstration, a phone call was placed

from abullet train moving in excess of 150 miles per hour (240 km/hour).

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Quallcomm’s EVDO Revolutions2 major Revolutions in EVDO are name as

“EVDO Rev A” and “EVDO Rev B”.EVDO Rev A:Enhanced QoS capabilitiesVoIP capacity of up to 49 calls per sectorVideo Telephony High-Speed Web BrowsingVideo/Music Streaming/DownloadsMulticasting

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EVDO Rev BImproves the performance

Provides consistent high data rate

Enables higher streaming rates for video and audio

Provides faster upload of pictures, videos and audio files

Provides faster mobile broadband for laptops

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Features of EVDO ServicesFollowing are some features of EVDO Services:Modem is Wireless, portable and small sized.

Speed Up to 2Mbps

Useful for Outdoor, Indoor and office use

Mobility in complete SDCA (Short Distance Code Area)

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Features of EVDO ServicesPeak rates of 3.1 Mbps on the downlink and

1.8 Mbps on the uplink.

Sector capacity of 1.5 Mbps downlink and 1.2 Mbps uplink.

Improving the connection setup time

lowering end-to-end delays

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Khurram Shahzad 07-32

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Comparison Of WIMAX And EVDOWIMAX:Wireless technologyRequired Outdoor device for connectivityDon’t provide mobility featureEVDO:Wireless technologyDon’t Required Outdoor device for connectivityProvide mobility feature

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Hardware Implementation

Following Types of cards are available to utilize EVDO

services:

USB

PCMCIA

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USB

USB devices can be used either on Desktop computers or on Laptops.

They Provide the “Plug & Play” facility.

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PCMCIAA PCMCIA card is a credit

card-size memory or I/O device that connects to a personal computer, usually laptop computer. 

Hi-Speed USB 2.0 PCMCIA Card supports transmission rates of up to 480 Mbps.

Can be used in Laptop where PCMCIA port is available.

Supports Voice call, SMS & PC-FAX applications.

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Interface on the Subscriber Machine

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Architecture of EVDO systemBTS:For transmission and receiving of signals.

Several BTS are connected to one BSC.BSC:Performs the task of Radio Resource

management. Several BSC are connected to one MSC.MSC:Does Switching between different networks.

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PCF:Packet control functionRoutes IP data packets between Mobile Station

and PDSN.

PDSN:Packet Data Service Node

Architecture of EVDO system

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Architecture of EVDO system

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Thanks

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Questions?????