802.11: Wireless LAN Standard In Computer Networking.

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Within this blog post, we are going to let you know about Wireless LAN standards in Computer Networking. The IEEE committee standardized the wired LANs and was given the task of drawing up a wireless LAN standard. The standard that came up was named 802.11.

A common slang name for it is WiFi. It is an important standard and deserves respect, so we will call it by its proper name, 802.11.|Wireless LAN Standard In Computer Networking|

The proposed standard had to work in two modes-

In the presence of a base station.
In the absence of a base station.

In the former case, all communication was to go through the base station, called an access point in 802.11 terminologies. In the latter case, the computers would just send to one another directly.

This model is now sometimes called ad-hoc networking.

A typical example is two or more people sitting down together in a room not equipped with a wireless LAN and having their computers just communicate directly.

The two modes(802.11) are illustrated in fig below.

standard-lan-wireless — **Fig1. Wireless LAN Standard 802.11**:**Wireless LAN Standard In Computer Networking**

In particular, some of the many challenges that had to be met were finding a suitable frequency band that was available, Preferably worldwide dealing with the fact that radio signals have a finite range ensuring that users…

privacy was maintained by taking limited battery life into account, worrying about human safety (do radio waves cause cancer ?) understanding the implications of computer mobility, and finally building a system with enough bandwidth to be economically viable.

What is the difference between WiFi and wireless LAN?

WIFI and Wireless LAN are different things however both are used for wireless communication. WIFI is wireless communication and wireless LAN uses wireless communication in a local area network.

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