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BZUPAGES.COM
BZUPAGES.COM
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?????