Wi-Fi Alliance certifies 802.11g standard

IDG News Service - The Wi-Fi Alliance, following successful interoperability testing, has put its stamp of approval on the first batch of products based on the new 802.11g wireless Internet standard.
This is the fourth Wi-Fi product certification developed by the alliance since it began its interoperability testing program in March 2000, the group of wireless equipment vendors said yesterday in a statement.
Previous certification programs were for products based on the 802.11a and 802.b standards, including dual-band products, approved by the Institute of Electrical and Electronics Engineers (IEEE), as well as the group's own Wi-Fi Protected Access. To date, nearly 800 products from 110 companies have received Wi-Fi certification.
The new 802.11g standard lays out the ground rules for wireless LAN gear that is capable of at least 24Mbit/sec. and up to 54Mbit/sec., while remaining backward compatible with existing 802.11b gear that runs at a maximum 11Mbit/sec. Both use radio spectrum in the 2.4-GHz radio band. Another standard, 802.11a, defines 54Mbit/sec. gear in the 5-GHz band.
The alliance's certification of 802.11g was expected to follow shortly after the IEEE Standards Board Review Committee approved the specification in June (see story).
For users, the certification means products that have passed interoperability tests are compatible with one another.
The growing number of amendments to the IEEE's family of 802.11 wireless Internet standards and vendors' use of different chip sets within the same product line have created a need for interoperability testing and certification, the Wi-Fi Alliance said.
Interoperability testing of the 802.11g products included the following four access points and four PC cards, based on chip sets from four different silicon suppliers:

• Atheros Communication Inc.'s AR5001X+ Universal 802.11a/b/g Wireless Network Adapter


• Broadcom Corp.'s 54g AP Reference Design -- BCM94306-GAP


• Intersil Corp.'s Prism Duette PCMCIA Adapter Model ISL39000C


• Intersil PRISM Duette Access Point Developer's Kit Model ISL39300A


• Melco Inc.'s AirStation 54Mbit/sec. Wireless Notebook Adapter-g Model WLI-CB-G54(A)


• Proxim Inc.'s Orinoco AP-600b/g


• Texas Instrument Inc.'s TNET1130 WLAN Cardbus Reference Design


• Texas Instrument's TNETWA622-g10-DP Access Point Reference Design

Reprinted with permission from

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