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Home » Overview of Wi-Fi » Wireless Networking Standards

Wireless Networking Standards
One of the revolutionizing technologies in the arena of modern communication, Wi-Fi is the local area network that uses high frequency radio signals to transmit and receive data over distances of a few hundred feet. In the course of doing so, Wi–Fi uses the ethernet protocol. Available through the Wi–Fi Alliance, the technology is used in the common interoperable products based on the set of IEEE 802.11 standards, which is also known as the Wireless Networking Standards.
Definition of Wireless Networking Standards: A wireless Local Area Network or WLAN is a wireless local area network, which is the linking of two or more computers without the use of physical wires. WLAN utilizes the spread-spectrum or OFDM modulation technology, which are based on radio waves. This technology enables communication between devices in a limited area, and also known as the basic service set. This gives users the mobility to move around within a broad coverage area and still be connected to the network. IEEE 802.11 is a set of Wireless Networking Standards for wireless local area network (WLAN) computer communication, developed by the IEEE LAN/MAN Standards Committee (IEEE 802) in the 5 GHz and 2.4 GHz public spectrum bands. The 802.11 Wireless Networking Standards family includes over-the-air modulation techniques, that use the same basic protocol, with certain deviations. All the deviations are amendments to the original Wireless Networking Standards 802.11a. 802.11a makes use of the 5 GHz U-NII band, which offers 8 non-overlapping channels rather than the 3 offered in the 2.4GHz ISM frequency band.

Different types of Wireless Networking Standards: Among the various types of Wireless Networking Standards, 802.11b is the most widely used. The original version of the standard IEEE 802.11, released in 1997 and modified in 1999, specified two raw data rates of 1 and 2 megabits per second to be transmitted in Industrial Scientific Medical frequency band at 2.4 Ghz. Wireless has become extremely popular even with the domestic users, mainly due to the convenience of installation, and mobility advantage with the gaining popularity of laptops. Public businesses such as coffee shops or malls have also begun to offer wireless access to their customers through Wireless Networking Standards . Large wireless network projects are being put up in many major cities. In countries like US, 802.11a and 802.11g equipments may be operated without a license, according to the Rules and Regulations, laid down by the constitution. The other variant of the original Wireless Networking Standards 802.11a is 802.11b. It is significant that the 802.11b devices suffer interference from other products operating in the 2.4 GHz band. These Devices include the commonly used microwave ovens, baby monitors, Bluetooth devices and cordless telephones. However, there are some disadvantages for these Wireless Networking Standards like Interference issues, and user density problems within the 2.4 GHz band .

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