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To: Bernard Levy who wrote (7735)	7/25/2000 9:40:39 AM
From: Dennis Roth	Read Replies (1) \| Respond to of 12823

This article gives some technical details on Flash OFDM. eetimes.com From article: For the PHY layer, Flarion opted for its own, patented version of OFDM. In Flash OFDM, a signal hops from tone to tone at the rate of roughly 10,000 times per second. Every user ends up signaling across the band on all tones, effectively turning OFDM into a spread-spectrum technology. "Wideband CDMA is also spread-spectrum, but only in the time domain," said Laroia. "Flash OFDM is spread in the frequency domain, so you end up getting all the frequency-diversity advantages and interference-averaging benefits that spread-spectrum offers in the cellular environment." Flash OFDM can be likened to putting time-division multiple access on top of OFDM, yielding all the benefits of both technologies in terms of robustness under mobility and channel-delay spreads, interference averaging from other cells and orthogonality inside the cell.

To: Bernard Levy who wrote (7735)	7/25/2000 10:35:15 AM
From: Frank A. Coluccio	Read Replies (1) \| Respond to of 12823

He has impeccable research credentials" Thanks Bernard, The fact that the principal's credentials are impeccable is reassuring to some extent, although the lack of additional information, even in terms of the extent of their proposed topologies and point-solutions leaves much to the imagination, assuming their flash technology works. It didn't stick with me the first time around, but dave ftth, the person, had already posted several links on NFCTF, if you care to do a search on "Flarion" here in SI. FAC