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Wireless Lan Standards

Wireless LAN Standards

There are several wireless LAN solutions available today, with varying levels of standardization and interoperability. Two solutions that currently lead the industry are, HomeRF and Wi-Fi* (IEEE** 802.11b). Of these two, 802.11 technologies enjoy wider industry support and are targeted to solve Enterprise, Home and even public .hot spot. 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). 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......


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Approximate Word Count: 900
Approximate Pages: 4 (250 words per double-spaced page)

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