Wednesday, February 18, 2004
Intel Corp.'s R&D group will push for a hybrid approach to what is expected to be a broad and heated debate on next-generation Wi-Fi standards in the IEEE 802.11n group. The proposed 100 Mbit/second version of 802.11 should embrace smart antennas, wider channels and advances in error correction and power efficiency, said James Wilson, a researcher in Intel's corporate R&D group. A lively debate inside Intel over a .11n proposal has not yet been resolved, he added.
"Knowing what's going on inside Intel, I can see coming to an agreement at the IEEE level will be difficult," said Wilson, after a presentation on .11n at the Intel Developer Forum here Tuesday (Feb 17). "There are a lot of different ideas about how to pursue this," he added.
As many as 450 people may to participate in a final vote on the .11n spec which is not expected to become a standard until at least late 2005.
For its part, the Intel R&D group advocates doubling the 802.11 channel width to 40 MHz and using two input and two output antennas. That approach offers a path to future 200Mbits/second throughput as well as lower RF and digital chip costs than competing approaches.
More aggressive smart antenna approaches are believed to advocate sticking with the current 20-MHz channel bandwidth, but adopting four input and four output antennas. That approach offers greater range and better frequency re-use, but could prove too costly for the small mobile systems, said Joe Pitarresi, a technology strategist in Intel's corporate R&D group.
"For small form factor sub-notebooks and handhelds, the costs get to be an issue," he said.
By: DocMemory
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