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Faster wireless connection

Wi-Fi Alliance certifies 802.11g standard

Following successful interoperability testing, the Wi-Fi Alliance 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 00.

Previous certification programs were for products based on the 802.11a and 802.11b 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 WLAN (wireless LAN) gear that is capable of at least 24Mbps (megabits per second) and up to 54Mbps, while remaining backward compatible with existing 802.11b gear that runs at a maximum 11Mbps. Both use radio spectrum in the 2.4GHz radio band. Another standard, 802.11a, defines 54Mbps gear in the 5GHz range.

The alliance's certification of 802.11g was expected to follow shortly after the IEEE Standards Board Review Committee approved the specification in June.

What the certification means to users is significant. Products that have passed interoperability tests are compatible with one another.

Interoperability testing of the 802.11g products included four access points and four PC cards, based on chipsets from four different silicon suppliers:

— Atheros' AR5001X+ Universal 802.11a/b/g Wireless Network Adapter
— Broadcom's 54g AP Reference Design -- BCM94306-GAP
— Intersil's PRISM Duette PCMCIA Adapter Model ISL39000C
— Intersil PRISM Duette Access Point Developer's Kit Model ISL39300A

— Melco's AirStation 54Mbps Wireless Notebook Adapter-g Model WLI-CB-G54(A)
— Proxim's ORiNOCO AP-600b/g
— Texas Instrument's TNET1130 WLAN Cardbus Reference Design
— Texas Instrument's TNETWA622-g10-DP Access Point Reference Design

The growing number of amendments to IEEE's family of 802.11 wireless internet standards and vendors' use of different chipsets within the same product line have created a need for interoperability testing and certification, the Wi-Fi Alliance said.

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