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.
There are numerous communication technology based on Radio like today’s Wifi (802.11b), WiMax (802.16d and 802.16e), Global System for Mobile (GSM), Third generation cellular mobile network (3G), fourth generation cellular network (4G), Long term evaluation(LTE), High Speed Packet Access (HSPA) and there are lot more new communication technology hugely depends on Radio technologies.
Radio Frequency Engineering
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….
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