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Technology Stocks : Winstar Comm. (WCII)
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To: Bernard Levy who wrote (4722)3/27/1998 12:30:00 AM
From: SteveG  Read Replies (1) of 12468
 
Thanks for the "bookmark" response, Bernard.

Several questions:

-From a symposium, I understood (from a WCII speaker) that WCII's P-MP would actually INCREASE the bandwidth over their P-P. Is this possible by some mechanism other than that which you have described, or must I have misunderstood?

-Isn't there a way to increase bandwidth by using a polarity shift, or is this the difference achieved (using phase shifted sine & cosine) between BPSK to QPSK?

-Are there any techniques that might allow more efficient bandwidth use than QPSK? (such as OFDM or GSPK?)

-In your comment on the need for efficient bandwidth management, what role do you see ATM and QoS techniques playing? ..especially in the instantiation of the proposed ITU-R B-ISDN network.

And thanks again for your very clear description of use of bandwidth.

Namaste-

Steve
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