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WiFi Vs. 3G
Dikutip dari karya:
Anthony Ikemefuna
President & co-founder
Cellynk Communications Corporation
www.cellynk.com
Agenda
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Pendahuluan
Teknologi
Perbandingan
Peluang Business &
Marketing
The Future
Conclusion
Introduction & Technology
Virtual
Reality
WLAN
xMbps @
60 GHz
Ad hoc
networks
EDGE
TDMA
GSM
Always Best
Always Best
ConnectedConnected
GPRS
WCDMA
PDC
cdmaOne
2G
9.6 - 14.4 kbps
New airinterface?
MC1X
cdma2000
Bluetooth
evolved 2G
3G
evolved 3G
64–144 kbps
384 kbps - 2 Mbps
384 kbps - 20 Mbps
Optical
Networking
4G
100 Mbps?
Cellular Technology & Evolution
Network
Mobile
2G
E
v
o
l
v
e
d
E
v
o
l
v
e
d
3G
2G
3G applications
getting “bigger, better
and more beautiful”
4G
Fixed network
applications
go wireless/mobile
3G
Fixed
NB
WB
0.384
Broadband,
“Extreme bit rates”
BB
2
Wireless/mobile
specific broadband
applications
20
Bandwidth
(Mbps)
All Access IP e2e Network
firewall
e-mail
web-hotel
subscriber
database
corporate WAN
Content
Provider
subscriber
database
Backbone
IP
transport
network
GSM/GPRS
UMTS
content
proxy
Proxy
Service
Provider
Bluetooth
PSTN, ISDN
xDSL ...
mobility
support
Multi-access
Service
Provider
Cellular
subscriber
database
WLAN
Summary
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3G & Evolved 3G
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PAN based on Bluetooth
Seamless Services over multiple accesses (integrate
Bluetooth and WLAN in the 3G family)
Improvements of existing Air-Interfaces (including new
spectrum)
4G
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Virtual & Augmented Reality
High Capacity Optical Networking
New Air-Interface (xMbps @ 60 GHz)
Advanced Antenna Systems and/or Multi-hop systems
Telco WLAN Vision
Airport
Local Area
W-LAN datacom
Roaming
Office
Wide
area
Public
Cellular
datacom
space
Office meeting
spot
Hotel &
Conference
Telco Vision
Wireless Interworking Technologies
Wireless Local Area Network
Wireless Wide Area Network
Wireless Personal Area Network
WLAN Technologies/Protocols
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IEEE 802.11 (b,g & a) --WiFi
IEEE 802.16 (a) -- Wi -Max or Wider - Fi
IEEE 802.20 -- Mobile - Fi
IEEE 802.11 Specs. (WiFi)
802.11b
802.11g
802.11a
Max. Speed
11 Mbps
54 Mbps
54 Mbps
Modulation
CCK
OFDM & CCK
OFDM
Frequencies
2.4 – 2.497
Ghz
2.4 – 2.497 Ghz
5 Ghz band
Approval
July 1999
June 2003
July 1999
Spectrum Rules on 5 GHz
Europe
Indoor
DFS & PC
200 mW
EIRP
Outdoor
DFS & PC
1 W EIRP
Max mean
Tx power
Carrier sensing every 4 ms
Japan
US
Indoor / Outdoor
200 mW / 1W
EIRP
Outdoor
4 W EIRP
5100 5200 5300 5400 5500 5600 5700 5800
Max peak
Tx power
Summary
IEEE 802.11
IEEE 802.16a
Max Speed
54 Mbps (11a & g)
70 Mbps
Range
100 m
40 km
QoS
None
Yes
Coverage
Indoor Opt.
Outdoor Opt.
Users
Hundreds
Thousands
Service Levels
None
Yes
Comparisons
Comparisons: 3G vs. WiFi
3G
WiFi
Standard
WCDMA,CDMA2000
IEEE 802.11
Max Speed
2 Mbps
54 Mbps
Operations
Cell phone companies
Individuals, WISP
License
Yes
No
Coverage Area
Several km
About 100m
Advantages
Range, mobility
Speed, cheap
Disadvantages
Relatively slow
Expensive
Short range
Comparisons: 3G vs. Wi-Max
3G
Wi-Max (Wider-Fi)
Standard
WCDMA,CDMA2000
IEEE 802.16
Max Speed
2 Mbps
10 to 100 Mbps
Operations
Cell phone companies
Individuals, WISP
License
Yes
Yes/No
Coverage Area
Several km
Several km
Advantages
Range, mobility
Speed, long range
Disadvantages
Relatively slow
Expensive
Interference issues?
Comparisons: 3G vs. Mobile-Fi
3G
Mobile-Fi
Standard
WCDMA,CDMA2000
IEEE 802.20
Max Speed
2 Mbps
16 Mbps
Operations
Cell phone companies
WISPs
License
Yes
Yes
Coverage Area Several km
Several km
Advantages
Speed, mobility
Range, mobility
Disadvantages Relatively slow
Expensive
Cost?
Business & Marketing Opportunities
Mobility
Business & Marketing Opportunities
High-end Nomadic
Datacom users
Processing capacity
User interface, e.g. screen-size
Business & Marketing Opportunities
….UMTS forum
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Location based services
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Internet access
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Multimedia Messaging
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Customized infotainment
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Intranet/Extranet access
Business & Marketing Opportunities
Cellular niches
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Location based services
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Security
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Impulsive transactions
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Customized infotainment
Mobility, subscriber identity
The Future
The Future
The Future
Conclusion
Conclusion
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Threat or complement
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Who will win
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Your contribution
It’s all about the money
Thank You 
Questions?
Comments!
Discussions!!