Qualcomm Incorporated (QCOM) Message Board

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Technology Stocks : Qualcomm Incorporated (QCOM)

QCOM 168.65

-3.1%

1:07 PM EST

Public Reply Prvt Reply Mark as Last Read File

Previous 10 Next 10 Previous Next

To: CDMQ who wrote (69240)	3/18/2000 2:48:00 AM
From: Lin	Read Replies (1) of 152472

OFDM, this sound just like CDMA. The way I understand CDMA's advantage is it reduce the amount of guard band needed between channels so that we can use those bandwidth to transmit information. It also increase the amount of bandwidth reuse in the spacial division multiplexing scheme used in cell phone system. The information bandwidth really is limited. You can do multiplexing in polarization, time division, space division (cell phone), code division (frequency division, wavelength division), phase division, amplitude division. There are limited way to increase the information bandwidth with the available spectrum. Is this OFDM for real? Where is the "engineer"? Can you kick in your thought?

Report TOU Violation

Share This Post

Public Reply Prvt Reply Mark as Last Read File

Previous 10 Next 10 Previous Next