Wireless LAN (WLAN) is really a wireless broadband technology that employs rf (RF) to deliver and receive data with the air, minimizing the requirement for wired systems.
There’s two competing RF technologies in using Wireless LAN, the IEEE 802.11 standard and proprietary technologies. Both come under wireless broadband technology. Broadband means the opportunity to transmit high-speed voice, data and video traffic using an array of frequencies on one wireless medium or device.
This site aims to provide you with a summary about Wireless Broadband -IEEE 802.11 standard generally known as Wireless LAN. 802.11 is really a standard agreed through the IEEE (Institute of Electrical and Electronics Engineers, Corporation.) the earth’s leading professional association for that growth of technology. 802.11 may be the standard adopted by IEEE to define an within the air interface from a wireless client and base station or between two wireless clients.
The 802.11 standard has changed through the years and grew to become probably the most effectively deployed technologies. The conventional now covers 802.11b, 802.11a and 802.11g systems.
Rf (RF) may be the medium use by wireless systems within the transmission of knowledge within the air. RF functions by converting electrical current into radio waves and transmit individuals waves within the air utilizing a defined frequency from the radio spectrum. A good example, the AM and FM radios two most generally known purposes of the RF spectrum.
The Government Communications Commission (FCC) may be the one administering using radio spectrum between your frequencies of 9 Kilohertz (KHz) and 300 gigahertz (GHz). 802.11 WLAN systems be employed in radio stations spectrum open to the general public, also referred to as the unlicensed frequency band. These radio spectrum bands are unlicensed, free to be used by anybody provided FCC rules are complied with.
The FCC like a regulatory governs the utmost transmit power wireless radios in addition to, kind of encoding and frequency modulations for use. In 802.11 operations, it’s deliver to through the FCC that non-licensed radios (for example 802.11) must accept interference from licensed electronic systems. FCC views licensed device because the primary equipment.
802.11 Wireless LAN Standard Operating Frequencies:
The 802.11 standard are assigned frequencies 2.4 GHz (2.4-2.4835 GHz) on ISM Band and 5 GHz (5.15-5.25 GHz, G.25-5.35 GHz, 5.725-5.825 GHz) from the U-NII band. 802.11b and 802.11g runs using 2.4 GHz while 802.11a is working around the 5 GHz band.
802.11 assigned frequency range has different characteristics. Lower Frequencies (2.4 GHz ) exhibit better range however with limited bandwidth minimizing data rates. Greater Frequencies (5 GHz) tight on range but greater data rates but is vulnerable to blocking by solid objects.