Feeds

Atheros ships first final-spec 802.11g chip

Rolls out third-gen Wi-Fi silicon

  • alert
  • submit to reddit

Internet Security Threat Report 2014

The Register's Wireless LAN Channel

WLAN chip maker Atheros today became the first to market with 802.11g product based on the final draft - version 8.2 - of the standard when it announced it has begun shipping its third-generation, AR5002 family of client and base-station Wi-Fi silicon.

The AR5002 line provides dual-band 2.4GHz and 5GHz wireless networking based on 802.11b, g and a, through two-chip solutions (a MAC/baseband part plus a radio chip).

The AR500X provides full-range dual-band networking, while the AR5002G supports the 2.4GHz band standards and the AR5002A targets the corporate 5GHz market with Wireless Multimedia Enhancements (WME) quality-of-service provision, a sub-set of the yet-to-be-ratified 802.11e spec.

All three client chipsets support the Wi-Fi Protected Access (WPA) security scheme. WPA is a sub-set of the upcoming 802.11i standard. WPA essentially leaves out encryption schemes - Temporal Key Integrity Protocol (TKIP) and Advanced Encryption Standard (AES) - from 802.11i that will require hardware acceleration. The AR5002 family provides that acceleration, Atheros said. It's also built in Cisco Compatible Extensions (CCX) and Meetinghouse's Aegis authentication API for VPNs. Both are seen as essential for corporate customers.

Atheros also said it has boosted the radio chips' range while lowering the chipsets' overall power consumption. And it has incorporated its Super G and Super A/G acceleration technologies that improve maximum network performance - 90Mbps of TCP/IP throughput, the company claims, for networks containing 802.11b nodes, and 108Mbps for a/g networks - between Atheros products that support the schemes. Super G and Super A/G use hardware data compression and data burst modes to achieve these higher throughputs.

Atheros' AR5002 base-station chipsets are the AR5002AP-2X, AR5002AP-X, AR5002AP-G and AR5002AP-A. The first two provide dual-band support, with the 2X hosting concurrent networks, and the X simply capable of being configured to operate in one band or the other. The 2X also provides WPA plus TKIP and AES security. The G and A configurations are aimed at budget base-stations offering single-band connectivity.

All AR5002AP MAC/baseband chips integrate wired Ethernet links to enable base-stations to be connected to fixed networks or Internet gateways. The chips also support Dynamic Frequency Selection (DFS) and Transmit Power Control (TPC), techniques required for 5GHz products certified for use in the European Union - and soon the US too - but which are not part of the current 802.11a standard.

DFS and TPC will become part of 802.11a under the 802.11ah extension.

Atheros' AR5002 parts will begin shipping today, the company said. As yet, prices have not been published. ®

Related stories

802.11b chipset prices could fall 75% this year
Wi-Fi Alliance 'caught with pants down' says chip maker
Proxim talks wireless TLAs and security upgrades
US Robotics doubles up on 802.11g data rates
Intersil triples 802.11g data rates
IEEE preps 802.11n 320Mbps WLAN spec

The Register's Wireless LAN Channel

Internet Security Threat Report 2014

More from The Register

next story
Of COURSE Stephen Elop's to blame for Nokia woes, says author
'Google did have some unique propositions for Nokia'
FCC, Google cast eye over millimetre wireless
The smaller the wave, the bigger 5G's chances of success
It's even GRIMMER up North after MEGA SKY BROADBAND OUTAGE
By 'eck! Eccles cake production thrown into jeopardy
Mobile coverage on trains really is pants
You thought it was just *insert your provider here*, but now we have numbers
Don't mess with Texas ('cos it's getting Google Fiber and you're not)
A bit late, but company says 1Gbps Austin network almost ready to compete with AT&T
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Cloud and hybrid-cloud data protection for VMware
Learn how quick and easy it is to configure backups and perform restores for VMware environments.
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.