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TECHNOLOGY
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Characteristic of the Wireless Wi-Fi network´s standards
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Frequency bandwidth [GHz]
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Effective isotropically-radiated power EIRP
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Standards
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Nominal bitrate [Mbit/s]
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Modulation type
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Comments
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2,4000-2,4835
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100 mW
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IEEE 802.11b/g
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1, 2, 5,5, 11
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DSSS
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For indoor and outdoor use
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6, 9, 12, 18, 24, 36, 48, 54
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OFDM
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5,150-5,250
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40 mW*
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IEEE 802.11a*
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6, 9, 12, 18, 24, 36, 48, 54
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OFDM
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*According to the USA law. EIRP for antennas with a gain of 6dBi.
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5,250-5,350
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200 mW*
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5,750-5,825*
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800 mW*
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5,150-5,350
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200 mW
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ETSI HIPERLAN/2,IEEE 802.11h
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6, 9, 12, 18, 27, 36, 54
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OFDM
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Indoor use only, DFS and TPC execution
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5,470-5,725
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1W
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For indoor and outdoor use, DFS and TPC execution
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-DFS ( Dynamic Frequency Selection ) is a method of dynamic, adaptative choice of carrier frequency used in order to avoid interference from other users [4]
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- TPC ( Transmit Power Control ) means updating radio signal power adjustments, which ensures reliable transmission between HIPERLAN network´s access points and the most remote terminal governed by this access point, as well as between two devices in HIPERLAN network (in the “up” line or in the direct line) [4]
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