Skip to main content

IEEE 802.11x

 

What is IEEE 802.11x?

802.11x is generic term to refer to the IEEE 802.11 standard for defining communication over a wireless LAN (WLAN). 802.11, commonly known as Wi-Fi, specifies an over-the-air interface between a wireless client and a base station or between two wireless clients. These standards are used to implement WLAN communication in 2.4, 3.6 and 5 GHz frequency bands. The term is not officially used or defined. Rather, it refers to the common flavors of Wi-Fi, most notably 802.11a, 802.11b, 802.11g, and 802.11n.

Some of the known IEEE standards association standard and amendments are

802.11-1997: The original standard released in 1997 provided 1-2 Mbps transmission speed in the 2.4 GHz band using Frequency Hoping Spread Spectrum (FHSS) or Direct Sequence Spread Spectrum (DSSS). It is currently obsolete.

802.11a: Provides a transmission speed of up to 54 Mbps in the 5 GHz band using Orthogonal Frequency-Division Multiplexing (OFDM).

802.11b: Works in the 2.4 GHz band and can provide up to 11 Mbps speed with a fallback rate to 5.5, 2 and 1 Mbps. 802.11b only uses DSSS.

802.11g: Provides a maximum speed of 54 Mbps in the 2.4 GHz band. 802.11g uses OFDM and DSSS and is backwards compatible with 802.11b.

802.11n: Provides up to 150 Mbps throughput using spatial multiplexing. It uses the both 2.4 and 5 GHz band.

Learn about IEEE 802.11g

  

Labels:

Comments

Post a Comment

Popular posts from this blog

Printer

What is Printer? Another widely used output device is a printer and it is a computer peripheral device. A printer produces a hard copy of a processed text or a result. A hard copy refers to a permanent human-readable text or graphics taken on physical print media such as paper or transparency. A printer will use toner to provide a quality print on paper, a toner is a replaceable material. Once the toner gets empty we can refill it and reuse it.  Most of the printers are used for commercial purposes such as private offices, industries, government offices, photo studios, etc,. Most of the printers are used to print emails, documents, files, images, color photos, color documents, color posts, banners, advertisement posters, etc,. There are the following 5 types of printers such as dot matrix printer, inkjet printer, laser printer, dye-sublimation printer, and plotter printer this are all the printer which uses nowadays for a printing purpose. A printer is characterized by the followin...
6 comments
Read more

Optical Disk Drives

What is Optical Drives? Optical Drives is a hardware device which used for reading and writing  a data in CD and DVD Disc. It uses electromagnetic waves to produce visible light spectrum which provide a read/write data process in optical disc. The CD was develop by Sony and Denon which is introduce in 1984 and the storage capacity is 650 MB. The DVD is develop by Panasonic, Sony, and Toshiba which is introduce in 1995 and the storage capacity is 4.7 GB. Types of Optical Disk Drives Some of the commonly used optical storage devices compact disks are Compact Disk Read Only Memory (CD-ROM) Compact Disk Recordable (CD-R) Compact Disk Rewritable (CD-RW) Compact Disk Digital Video Disc (DVD) Types of Optical Disk Drives Compact Disk Read Only Memory (CD-ROM) The Compact Disk Read Only Memory it contains data were computers can read but not write or erase in CD-ROM it is a type of read-only memory. In the 1990s CD-ROM was use for software and data distribution for the computer. Some ...
Post a Comment
Read more

Dye Sublimation Printer

What is Dye Sublimation Printer? A dye-sublimation printers is refers to a type of printers. Thus the printer uses a printing process that utilizes a heat to transfer dye to a medium such as a printers paper, a plastic card or a poster paper. The printers are target primarily for printing a high-quality colour applications such as a colour photography and are less well-suite for a text. Therefore, they are commonly use as a dedicated consumer photo printers. The name sublimation was first applied due to a dye transition between the solid and a gas states without going to a liquid state and a dye-sublimation heat transfer imprinting a printers is use to imprint on a textiles by creating a transfer design in a imprinting printer.  Then the all-over print process is done at a lower temperature with a higher pressures. In this there are separate panels which use for each colour therefore a dye is stored in the polyester ribbon. The size of the colour panel is a medium which is use for ...
1 comment
Read more