WIRELESS NETWORK AND
FREQUENCY BANDS
Wireless LAN
Most of the wireless local area computer networks today are based on the IEEE 802.11 a/b/g standards.
These standards were developed by the IEEE (Institute of Electrical and Electronics Engineers) in order to
insure inter-operability between different WLAN vendors.
802.11 Standard Release date Frequency (GHz) Maximum bit rate (Mbits/sec) Modulation type
Wi-Fi 2 (a)
1999 5 54
OFDM
Wi-Fi 1 (b)
1999 2.4 11
DSSS
Wi-Fi 3 (g)
2003 2.4 54
OFDM
Table 1-1 Wireless LAN standards
The 2.4GHz and 5GHz frequency bands are license free world wide.
However you must be aware of country specific limitations and follow them.
WIREL ESS NETWO RK AND FREQUENCY BANDS 36
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