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Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here

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To: Quincy who wrote (12676)11/29/2003 12:54:25 PM
From: P2V  Read Replies (1) of 12823
 
re LOS " A symptom of 5ghz deployment. "
Not at all the case, with WiMAX or Wi-Max-Like current
deployments ...
products by Wi-Lan are Wi-max-Like,
as the Wi-max is based on the Wi-Lan Wideband OFDM
products' PHYsical Layer technology.

While total NLOS is a stretch of the imagination in
some cases, Near NLOS certainly applies to the 256 FFT
W-OFDM products.

BTW W-OFDM is aptly described by Tony Nguyen , from Infineon ...

ragingbull.lycos.com
Tony.Nguyen@infineon.com
WHAT IS W-OFDM?
W-OFDM overcome problems with multipath by sending training symbols: the adverse channel effects can then be reduced through a simple division by the channel frequency response. It also employs a spreading forward error correcting code, such as Reed-Solomon, to spread the symbols over many frequencies that convert the signal to direct sequence spread-spectrum with the ability to recover the symbols even if some carriers are totally absent. W-OFDM's efficiency and noise tolerance unite the best of spread-spectrum and narrowband systems. Recall that spread-spectrum use excessive bandwidth to compensate for noise and multipath, while narrowband technology is more sensitive to multipath propagation.
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