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Siemens IEEE802.11 User Manual

Page 13

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WLAN-IEEE802.11 Tutorial (Maximilian Riegel), 021018-wlan-tutorial.ppt

Page 13

© Siemens, 2002

Wireless IEEE802.11 Standard

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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

Approved June 1997

802.11b approved September 1999