Transcript Bluetooth vs IEEE 802.11

BT
802.11
By Sam Shen
2002/07/11
Bluetooth vs 802.11
Bluetooth Introduction
802.11 Introduction
Compare
The Future
MICETEK
MICETEK
Bluetooth Introduction
What with the name, Bluetooth?
Bluetooth’s Backgound
Bluetooth Technology
Sample Applications
Problems
Bluetooth’s name?
MICETEK
Bluetooth was the name of a 10th century
Viking king in Denmark?
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Bluetooth’s Backgound
In May, 1998, Ericsson, Nokia, Toshiba, IBM
and Intel first formed the Bluetooth SIG.
3Q of 1999, the Bluetooth SIG were joined
by Microsoft, Motorola, 3Com, Lucent and
formed the Bluetooth Tech Promoter Group.
Bluetooth SIG has Over 1500 members by
April, 2000
Bluetooth Technology
Types of Links: ACL, SCO
Ad Hoc Networking
Voice over Bluetooth
Video over Bluetooth
Radio Link
Interference
Safety
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Sample Applications
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Presentations
Travel
Card Scanning
Home Entertainment
Sync Data
Payment Systems
Printing
Scanners
In-Car System
Mobile e-commerce
E-books
Jini & Java
Bluetooth Problems
Price
Difficult to Produce
Hard to do Full Test
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IEEE 802.11 Introduction
802.11 Family
IEEE 802.11b Technology
802.11 Family
1997, 802.11
1999, 802.11b = Wi-Fi
802.11a
802.11g
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802.11b Technology
Speed
Auto Speed adjust
Range
Reliability
Interoperability
Power Management
Roaming
Balance
Security
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BT vs 802.11b
Feature/
Function
Connection
Type
Spectrum
Transmission
Power
Aggregate
Data Rate
Range
Supported
Stations
Voice
Channels
Addressing
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Bluetooth Performance
IEEE 802.11B
Performance
Spread spectrum(frequency Spread spectrum(frequency
hopping)
hopping or direct sequence)
2.4GHz ISM band
2.4GHz ISM band
1mW
100mW
1Mbps using frequency
hopping
Up to 30feet (10m)
Up to 8 device per piconet
Up to 3
1/2Mbps
frq
hopping,
11Mbps direct sequence
Up to 300feet (100m)
Mutiple device per access
point; mutiple access points
per network
Voice over IP
48 bit MAC address
48 bit MAC address
BT vs 802.11b
Standard
Supporter
Tech
Antiinterference
Application
Bluetooth
Bluetooth SIG
Many profiles
applications
Freq hopping
Low power
High because
hopping
Mobil App,
palmsize PC
Leading tech
network
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IEEE 802.11B
WEAC
for different Physical layer and MAC
layer in OSI/RM
of the Freq Need to lower the speed
cell phone, High speed, try to take place
of LAN
in ad hoc
The Future
IEEE 802.15 work group
Inter-work
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Thanks
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Thanks to be with us.
By Sam Shen
[email protected]
2002/07/11