Wireless Standards

802.11,802.11a,802.11b,802.11g,802.11n and 802.11r

802.11

Created Date: 1997 by IEEE(The Institute of Electrical and Electronics Engineers)

Frequency: 2.4 GHz

Data Rate: 2Mbps

Application Area: No longer in Use

802.11a

Created Date: 1999 by IEEE(The Institute of Electrical and Electronics Engineers)

Data Rate: 54Mbps

Frequency: 5GHz

Modulation technique:: Orthogonal frequency-division multiplexing (OFDM)

Range: 75 Feet or 35m

Compatibility: Incompatible with Wireless-B and G due to the different frequency

Cons:highest cost; shorter range signal and more easily obstructed

Application Area: Due to the higher Cost found on business networks

802.11b

Created Date: 1999 by IEEE(The Institute of Electrical and Electronics Engineers)

Data Rate: 11Mbps

Frequency: 2.4GHz

Modulation technique: DSSS (Direct-sequence spread spectrum)

Range: 35m

Compatibility: Incompatible with Wireless-A and  compatible with Wireless-G

Cons:slowest maximum speed; home appliances may interfere on the unregulated frequency band

Application Area: lowest cost; signal range is good and not easily obstructed