By Rahul Raj
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AN EVOLUTION IN MOBILE TECHNOLOGY
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AIM OF THE PRESENTATION To familiarize the audience what EDGE
TECHNOLOGY is all about. To explain it’s advantage over other
technology. FUTURE SCOPE of the existing technology.
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EDGE TECHNOLOGY: What is Edge?
How is EDGE related to mobile phones ?
3rd generation mobile communication.
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Mobile evolution 1st generation mobile communication 2nd generation mobile communication 2.5th generation mobile communication 3rd generation mobile communication 3G and above
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Then Came Digital……….. 1G
2G
2.5G
CDMA
3G
1X-EVDO
GPRS
EDGE
TDMA AMPS
802.11
1XRTT
GSM
IDEN 02/24/09 CDPD
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WAN
6 LAN
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Courtesy: http://www.gsmworld.com/technology/index.shtml RAHUL RAJ
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EDGE architecture
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MODULATION & CODING: What is Modulation ? What is coding? Comparison b/w Modulation and Coding. In what way Modulation and Coding Schemes
related to EDGE technology 02/24/09
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Modulation and Coding scheme (MCS)
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Coding and modulation scheme (MCS)
Speed (kbit/s/slot)
Modulation
MCS-1
8.80
GMSK
MCS-2
11.2
GMSK
MCS-3
14.8
GMSK
MCS-4
17.6
GMSK
MCS-5
22.4
8-PSK
MCS-6
29.6
8-PSK
MCS-7
44.8
8-PSK
MCS-8
54.4
8-PSK
MCS-9
59.2
8-PSK
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Advantages Balanced improved bit rate at all radio
conditions
No hardware, software change to GSM core
networks
Supports download various file types 02/24/09
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Handle four times the traffic of standard GPRS Smart & adaptive antennas Triples gross data rate by GSM Circuit-switched and packet-switched traffic
coexist
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Rapid Internet and WAP access Service available for EDGE phones without tariff
charge Avoids creating new system
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DISADVANTAGES: EDGE requires base station modifications
Extra mobile terminal hardware and software
required
Frequently referred to as 2.75G
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CONCLUSION: EDGE technology has succeeded the
technology previously used in mobile phones. Low risk of investment thanks to the dual mode of GSM/EDGE (Slot by slot) It support the same technology as GPRS but it has got higher data rates of more than 400kbits/sec EDGE allows the delivery of advanced mobile services such as the downloading of video and music clips, full multimedia messaging, highspeed Internet access and e-mail on the move. 02/24/09 RAHUL RAJ 15
THANK YOU