6
of
9
3. General Requirements
3.1 IEEE 802.11b Section
Feature
Detailed Description
3.2.1.1
Standard
● IEEE 802.11b
3.2.1.2
Radio andModulation
Schemes
● DQPSK, DBPSK, DSSS, and CCK
3.2.1.3
OperatingFrequency
● 2400
~
2483.5 MHz ISM band
3.2.1.4
Channel Numbers
● 11 channels for United States
● 13 channels for Europe Countries
3.2.1.5
Data Rate
● 11,5.5,2,and 1Mbps
3.2.1.6
Media AccessProtocol
● CSMA/CA with ACK
3.2 IEEE 802.11g Section
Feature
Detailed Description
3.2.2.1
Standard
● IEEE 802.11g
3.2.2.2
Radio andModulation Type
● QPSK , BPSK , 16QAM ,64QAM with OFDM
3.2.2.3
OperatingFrequency
● 2400~2483.5MHz ISM band
3.2.2.4
Channel Numbers
● 11 channels for United States
● 13 channels for Europe Countries
3.2.2.5
Data Rate
● 6,9,12,18,24,36,48,54Mbps
3.2.2.6
Media AccessProtocol
● CSMA/CA with ACK
3.3 IEEE 802.11a Section
Feature
Detailed Description
3.2.3.1
Standard
● IEEE 802.11a
3.2.3.2
Radio andModulation Type
● QPSK , BPSK , 16QAM ,64QAM with OFDM
3.2.3.3
OperatingFrequency
● 5.15~5.35GHz and 5.47~5.825GHz for US
● 5.15~5.35GHz and 5.47~5.725GHz for Europe
3.2.3.4
Channel Numbers
● 24 non-overlapping channels for US and Canada
● 19 non-overlapping channels for Europe
3.2.3.5
Data Rate
● 6,9,12,18,24,36,48,54Mbps
3.2.3.6
Media AccessProtocol
● CSMA/CA with ACK