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Nortel has demonstrated an OFDM and MIMO network in a lab that delivers peak data rates of 37 Mbps over a 5 MHz channel: Nortel is pushing OFDM and MIMO as cornerstones of the mobile networks that will follow HSDPA and EV-DO.
It is significant that Nortel is planting its stake firmly in the OFDM camp. While some other traditional cellular vendors have also been working on OFDM tests, I don’t believe that many have outright stated that they’re betting on OFDM for future cellular upgrades. Most of them seem to be hedging their bets a bit, pursuing OFDM as an option but not necessarily betting on it. As this Wireless Review (Wireless Review is a sister publication to Telephony) article aptly points out, it’s no foregone conclusion. Some vendors apparently still believe that CDMA has quite a lot of life left in it.
Posted by nancyg at March 9, 2005 6:14 PM
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