Today’s Wireless LAN Standard_IEEE 802.11g

IEEE 802.11g- describes data transfer rates as fast as IEEE 802.11a using the same technologies as, and boasts backward compatibility to, 802.11b, allowing incremental upgrades. The 802.11g standard was ratified by the IEEE in June, 2003. Wi-Fi certification has been extended to include 802.11g. More details ....

Today’s Wireless LAN Standard_IEEE 802.11a

IEEE 802.11a- specifies much faster data transfer rate than 802.11b,but lacks compatibility with IEEE 802.11b. 802.11a uses the 5 GHz UNII frequency bands. This standard was ratified by IEEE in 1999 as an amendment to the original IEEE 802.11 standard. Wi-Fi product certification has been extended to include 802.11a. More details . . .

Today’s Wireless LAN Standard_IEEE 802.11b

IEEE 802.11b-modifies 802.11 2.4GHz DSSS (Direct sequence spread spectrum) to include faster data transfer rates up to 11Mbps.This standard was the first to be widely promoted as wi-fi Alliance.802.11b was ratified by IEEE in 1999 as an amendment to the original IEEE 802.11 standard. More details.....

Today’s Wireless LAN Standard(IEEE 802.11)

IEEE 802.11-the original wireless LAN standard that specifies one or two Mbps data transfer rates using both 2.4GHz unlicensed radio frequencies (RF) and infrared light-based transmission technologies.The RF technologies include both frequency hopping spread spectrum (FHSS) and direct sequence spread spectrum (DSSS). This standard was ratified by IEEE in 1997, revised vin 1999, corrected again in 2001, and finally reaffirmed in 2003.

Today’s Wireless LAN Standard

-->Emerging technologies will require standards that describe and define their proper behavior.The challenge for manufacturers and standards makers alike will be to bear on the problems of interoperability and compatibility.More details….

Constration body of IEEE

The IEEE stand are created by group of people that represent many different organizations, including academics, corporate bussiness, military, and the government. Because stadards set forth by the IEEE can have such an impact on the developments of technology, the standards can take many years to be created and agreed upon, althrough ratification of 802.11 standards seems to have accelerated greatly in the last few years, probably due to the extreme demand for 802.11 products.

Wireless LAN(Local Area Network)

Wireless LAN transmits using radio frequencies ,so that they are regulated by the same legal regulation that govern other radio transmitters such as HAM radios.The Federal Communication Commissin (FCC) regulates the wireless LAN devices’ use of the RF spectrum.Meanwhile, the institute of Electrical and Electronics Engineers (IEEE) define standards for how RF tranasmissions can be used to carry data.Several accepted operational standards and drafts in the United States have been created and maintained by the IEEE.