2.2 General Requirements
2.2.1 IEEE 802.11a Section
#
Feature
Detailed Description
2.2.1.1
Standard
Ÿ
IEEE 802.11a
2.2.1.2
Radio and
Modulation
Type
Ÿ
BPSK, QPSK, 16QAM, 64QAM, OFDM
2.2.1.3
Frequency
Range &
Channels
5.15~5.25 GHz (FCC/IC/CE) .4 Chs
5.25~5.35 GHz (CE only) 4 Chs
5.470~5.725 GHz (CE only).11Chs
5.725~5.850 GHz (FCC/IC) .5Chs
2.2.1.4
Data Rate
Ÿ
54, 48, 36, 24, 18, 12, 9, and 6Mbps
2.2.1.5
Media Access
Protocol
Ÿ
CSMA/CA with ACK
2.2.1.6
Transmitter
Output Power
(Average power)
Ÿ
Typical RF Output Power at each Data Rate
Ÿ
+10 ~ 13dBm at 54Mbps
Ÿ
+11 ~ 14dBm at 48Mbps
Ÿ
+13 ~ 16dBm at 36Mbps
Ÿ
+15 ~ 17dBm at 24, 18, 12, 9, and 6Mbps
2.2.1.7
Receiver
Sensitivity
Ÿ
Typical Sensitivity at Which Frame (1000-byte
PDUs) Error Rate = 10%
Ÿ
–
87dBm at 6Mbps
Ÿ
–
86dBm at 9Mbps
Ÿ
–
85dBm at 12Mbps
Ÿ
–
83dBm at 18Mbps
Ÿ
–
80dBm at 24Mbps
Ÿ
–
76dBm at 36Mbps
Ÿ
–
71dBm at 48Mbps
Ÿ
–
66dBm at 54Mbps
2.2.2 IEEE 802.11b Section
#
Feature
Detailed Description
2.2.2.1
Standard
Ÿ
IEEE 802.11b
2.2.2.2
Radio and
Modulation
Schemes
Ÿ
DQPSK, DBPSK, DSSS, and CCK
2.2.2.3
Operating
Frequency
Ÿ
2400 ~ 2483.5 MHz ISM band
2.2.2.4
Channel
Numbers
Ÿ
11 channels for United States
、
Canada and
Taiwan