Wireless LAN Standards

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Karla V


Date added:

January 10, 2013








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wireless LAN needs. 1. IEEE 802.11 The IEEE finalized the initial standard for wireless LANs, IEEE 802.11 [1] in June 1997.This initial standard specifies a 2.4 GHz operating frequency with data rates of 1 and 2 Mbps. With this standard, one could choose to use either frequency hopping or direct sequence (two non compatible forms of spread spectrum modulation)...
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Because of relatively low data rates (as compared to Ethernet), products based on the initial standard did not flourish as many had hoped. In late 1999, the IEEE published two supplements to the initial 802.11 standard: 802.11a and 802.11b (Wi-Fi*). The 802.11a [3] standard (High Speed Physical Layer in the 5 GHz Band) specifies operation in the 5 GHz band with data rates up to 54 Mb/s...
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