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The ABC of wi-fi

Posted by scottparat | Filed under Registry Articles

A wi-fi LAN is an array of network components inter-allied with each other. The difference with the traditional wired communication lies in the absence of wires in the whole system. WLANs are used in tandem with or as a replacement of wired networks. This, in fact, adds elasticity and freedom of movement within a certain workplace. The clients of the LAN have the benefit of great mobility and they can access all the information on the network from home, office or even throughout the campus without depending on the wired connections.
The IEEE 802.11 standard on which wi-fi technology works, acts in two modes; in the presence of base station and in the absence of it.
When the base station is present all communiqué goes through it. It is generally termed as access point and known as infrastructure mode. When it is absent the various computers get connected with each other directly in a mode called ad hoc networking.
IEEE 802.11 signifies a set of wireless LAN/WLAN standards built up by IEEE standards working committee. The committee at the very first phase faced so many challenges to find an appropriate frequency band. The security of an individual user was to be assured.  The committee also had to make the world wide bandwidth economically reasonable for the user.
At the occasion of standardization course, the IEEE committee decided that 802.11 would be made compatible with Ethernet above data linkage stratum. But still several intrinsic differences existed and that had been taken care of.
The first problem was regarding data transmission. A computer with wired internet connection always listens to the ether before conveying data. But wi-fi network cannot work in that way. The range of a station probably could not detect the transmission between two other stations. Secondly, the radio signals might be returned off the solid objects. So the interference was initiated for multi-way transmission. Thus the first moves were very much entangled with so many problems like these.
At the end, the committee solved all these problems and came up with a standard protocol for wi-fi connection. The most accepted modifications are 802.11a, 802.11b and 802.11g to unique standard. The security was boosted up by amendment 802.11i. The other specifications are service augmentation and extension of wi-fi.

Sarah Jones, a decade old in the industry, writes on technology and computer-related issues. Her focus is on hardware troubleshooting. Writing on remote support of PC’s is her forte. The informative articles coherently explain technical complications. Sarah, who belongs to Bertford, has an eye for new development in technology and equips her readers with in-depth information on the same.

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