
CSE5501: MOBILE & DISTRIBUTED COMPUTING SYSTEMS
Lecture 3: Wireless LANs
17
Industrial, Scientific and
Medical (ISM) Bands
Industrial, Scientific and
Industrial, Scientific and
Medical (ISM) Bands
Medical (ISM) Bands
AP96358 3
AP96358 3
-
-
4
4
• SPREAD SPECTRUM ALLOWED TO MINIMIZE INTERFERENCE
• 2.4GHz ISM BAND
- More Bandwidth to Support Higher Data Rates and Number of Channels
- Available Worldwide
- Good Balance of Equipment Performance and Cost Compared with
5.725GHz Band
- IEEE 802.11 Global WLAN Standard
1
1
2
2
3
3
4
4
5
5
6
6
FREQUENCY (GHz)
FREQUENCY (GHz)
26MHz
26MHz
83.5MHz
83.5MHz
125MHz
125MHz
2.400 to 2.4835GHz
2.400 to 2.4835GHz
902 to 928MHz
902 to 928MHz
5.725 to 5.850GHz
5.725 to 5.850GHz
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