evolution of mobile communication
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Evolution of Mobile Communication
Mohamed Reda Hassan
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ContentsIntroduction0G1G2G2.5G “GPRS” Technology2.7G “EDEG” Technology3GWhat’s CDMA ?4G “ LTE“Meaning “ E” “G “ “H “Operators in Egypt?
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Wireless Communication..is the transfer of
information over a distance , without the use of electrical conductors/wires
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0GHeavy , expansive.Low Quality .Limited Capacity.Power Hungry
transceiver.Power Level not safe
.
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1G (Frist Generation)introduced in the
1980sAnalog System.Limited to Voice
Service.No encryption.FM modulation.FDMA .It’s speed up to 2.4Kbp/s
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2G • 2G technology refers to the 2nd generation which is based on
GSM.• It was launched in Finland in the year 1991. • 2G network use digital signals.• It’s data speed was up to 64kbps• High Capacity.• Low Power Consumption • TDMA Transition Technology.• Digital encryption .• Enhanced rang of services [data + voices].
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Appearance of High data Rate
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3GAdd Value:Voice CapacitySpeedReduced DelayServices
Security
Improved qualityVoice and more data Higher data rateQuickly Response
time Streaming ,Video
callMobile TV.• More Security
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What’s CDMA?CDMA (Code-Division Multiple Access) CDMA is a form of multiplexing, which allows numerous
signals to occupy a single transmission channel, optimizing the use of available bandwidth. The technology is used in ultra-high-frequency (UHF) systems in the 800-MHZ and 1.9-GHz bands.
Researchers started even 1950.IS-95 The narrow band CDMA mobile network has been
standardized in 1993.CDMA wideband CDMA system Such as CDMA2000 in US
and Europe and WCDMA developed in 1990 and still ongoing
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Long Term Evolution (LTE) 4G technology refer to or short name of fourth Generation which was started from late 2000s. Capable of providing 100Mbps – 1Gbps speed. One of the basic term used to describe 4G is :.
Mobile MultimediaAnytime AnywhereGlobal Mobility SupportIntegrated Wireless SolutionCustomized Personal Services
Also known as Mobile Broadband Everywhere.
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Features Include: More Security High Speed High Capacity Low Cost Per-bit etc.
Battery uses is more
Hard to implement
Need complicated hardware
Expensive equipment required to implement next generation network.
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Meaning “ E” “G “ “H “
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Operators in Egypt?
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Thanks'