Siemens IEEE802.11 Tutorial page 13

Wireless IEEE802.11 Standard
Approved June 1997
802.11b approved September 1999
WLAN-IEEE802.11 Tutorial (Maximilian Riegel), 021018-wlan-tutorial.ppt
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Operation in the 2.4GHz ISM band
– North America: FCC part 15.247-15.249
– Europe: ETS 300 - 328
– Japan: RCR - STD-33A
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Supports three PHY layer types:
DSSS, FHSS, Infrared
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MAC layer common to all 3 PHY layers
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Robust against interference
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Provides reliable, efficient wireless data
networking
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Supports peer-to-peer and
infrastructure configurations
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High data rate extension IEEE802.11b
with 11 Mbps using existing MAC layer
Page 13 © Siemens, 2002