
AlphaNetworksProprietaryand ConfidentialInformation
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2.2GeneralRequirements
2.2.1IEEE 802.11bSection
# Feature Detailed Description
2.2.1.1 Standard ŸIEEE 802.11b
2.2.1.2 Radioand
Modulation
Schemes
ŸDQPSK, DBPSK, DSSS, andCCK
2.2.1.3 Operating
Frequency Ÿ2400 ~2483.5MHzISM band
2.2.1.4 ChannelNumbersŸ11 channelsforUnitedStates/Canada/ Taiwan
13 channelsforEuropeCountries
14 channelsforJapan
2.2.1.5 Data Rate Ÿ11, 5.5, 2, and1Mbps
2.2.1.6 Media Access
Protocol ŸCSMA/CAwithACK
2.2.1.7 TransmitterOutput
Power Ÿ802.11b:24.90dBm
2.2.1.8 ReceiverSensitivity
ŸTypical Sensitivityat WhichFrame(1000-bytePDUs)ErrorRate=
8%
ŸTypical 84dBmfor11Mbps@8% PER
ŸTypical 90dBmfor2Mbps@8% PER
2.2.2IEEE 802.11g Section
# Feature Detailed Description
2.2.2.1 Standard ŸIEEE 802.11g
2.2.2.2 Radioand
ModulationType ŸBPSK, QPSK, 16QAM, 64QAM withOFDM
2.2.2.3 OperatingFrequency
Ÿ2400 ~2483.5MHzISM band
2.2.2.4 ChannelNumbersŸ11 channelsforUnitedStates/Canada/ Taiwan
13 channelsforEuropeCountries
13 channelsforJapan
2.2.2.5 Data Rate Ÿ6,9,12,18,24,36,48,54Mbps
2.2.2.6 Media Access
Protocol ŸCSMA/CAwithACK
2.2.2.7 TransmitterOutput
Power Ÿ802.11g:28.41dBm
2.2.2.8 ReceiverSensitivity ŸTypical Sensitivityat WhichFrame(1000-bytePDUs)ErrorRate=
10%
Ÿ87dBmat 6Mbps
Ÿ87dBmat 9Mbps
Ÿ84dBmat 12Mbps
Ÿ82dBmat 18Mbps
Ÿ79dBmat 24Mbps
Ÿ75dBmat 36Mbps
Ÿ71dBmat 48Mbps
Ÿ70dBmat 54Mbps
2.2.3IEEE 802.11nSection
# Feature Detailed Description
2.2.3.1 Standard ŸIEEE 802.11nDraft2.0
2.2.3.2 Radioand
ModulationType ŸBPSK, QPSK, 16QAM, 64QAM withOFDM
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