Wednesday, May 8, 2019

Wireless Networking (WLAN) Essay Example | Topics and Well Written Essays - 2000 words

Wireless Networking ( wireless fidelity) - Essay ExampleUsing these devices users can access dual-lane info conveniently without having to plug in and connect to other devices physically.The transmission of data between devices in the network takes place by the simple process of modulation with radio frequencies acting as carriers of the knowledge being transmitted. The RF is modulated according to the information preindication and carried to the receiving end. At the receiving end the exact information is extracted from the modulated signal by the process of demodulation. A number of signals can be transmitted by means of air at the same time provided that their frequencies have a considerable gap between them. In other words the frequency of operation should be several(predicate) and they will not interfere. There atomic number 18 one or more devices known as access panes through which the wireless devices communicate. An access point (AP) is a simple transmitter/receiver o r Transceiver.A wireless network interface add-in (NIC) is required to access a wireless network which is available in various forms. Nowadays devices be available with built in NICs. But they can as well be installed separately latter. These NICs also require necessary software drivers to be installed for their functioning.Narrowband WLANs keep the bandwidth of the radio frequency signal as narrower as possible, in order to just pass the information. Although the distance between the devices is reasonable hardly the speeds achieved are not as good as required by the corporate users. A commonplace problem that could arise in WLANs is the interference, which can be overcome by allotting different frequencies to different individuals. In this case since the bandwidth is narrow, interference can very well be avoided.These WLANs use wideband RF. The use of wideband signal helps in attaining greater speeds. The most popular WLAN being used is 802.11b attaining a speed of about 11 Mb ps. With the advancement of technology the speeds

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