The 802.11g is a standard for wireless local area networks (WLANs) and an extension to the 802.11 specification. 802.11g was developed by the Institute of Electrical and Electronics Engineers (IEEE) for WLAN as an improvement over its predecessor, 802.11b. The 802.11g technology for wireless networks is designed for transmission over short distances. The maximum network bandwidth is 54 Mbps in the 2.4 GHz bands. Its frequency provides for a favorable signal range, and the availability of the OFDM modulation scheme (orthogonal frequency division multiplexing) supports its capability for higher data speeds than previous 802.11 standards. In contrast, the more recent 802.11n has a data rate of 150 Mbps. 802.11g offers backward compatibility with 802.11b technology on the same network.
802.11g WLAN Technology
Since 1997, the IEEE has developed a family of 802.11 wireless networking specifications to meet general and specific purposes. 802.11g WLAN technology is part of this family. Wireless local area network (WLAN) products that are based on the 802.11 standards are often called Wi-Fi devices. These wireless devices conform to the 802.11g protocol and meet other testing requirements may be marketed as Wi-Fi Certified. Businesses can review the 802.11 wireless networking standards, and their security features, when planning a network or buying a device with WLAN technology.
802.11g Devices for Wireless Networking
With 802.11g devices, large amounts of digital data can be transmitted over a radio wave. The standard supports communications between computers, broadband routers and other devices. 802.11g and 802.11b both operate in the widely used 2.4 GHz range, which may lead to interference issues. Bluetooth devices, microwaves and cordless telephones also operate in this range.