Intel Researchers Develop CMOS Radio Supporting All Flavors Of The
802.11 Wi-Fi Standard
andre.kesteloot at verizon.net
Mon Jun 20 13:57:04 CDT 2005
The main claim-to-fame for the device is that it is capable of 100MHz
signal bandwidth, a spec that Intel's paper describes as meeting the
requirements of the "power envelope demands of multiple radio (MIMO)
systems". The company also used this capability to assert that the
design "could support emerging requirements of next generation WLAN
But any 802.11n claims for the prototype are premature. Without MAC and
baseband functions to handle the complex signal processing requirements
of both the TGn Sync and WWiSE camps' 802.11n draft proposals, Intel's
prototype, at best, addresses only a part of what would be required for
a complete 802.11n solution.
While the device may be a step forward for Intel, other vendors are
farther along in wireless chip integration. Atheros in May announced
<http://www.tomsnetworking.com/News_story_1087.php> its ROCm
(Radio-on-Chip for Mobile) family including single-band and dual-band
devices that incorporate MAC, baseband, and RF functions, but not the
output power amp.
Israeli startup Metalink also recently announced
<http://www.tomsnetworking.com/News_story_1091.php> a single-chip RF
MIMO device incorporating two independent transmit and receive RF
chains. And MIMO market leader Airgo Networks is expected to soon
announce a more integrated version of its TrueMIMO technology.
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