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[Enquiry] how to add OFDM subcarriers in simulink

Started by Unknown January 2, 2008
I am doing a project on OFDM equalization. So far, i have been doing
equalization for one ofdm symbol. I wish to ask how could i add more
subcarriers in by using Simulink? Is there any example that i can
refer to?

Thanks alot.
kelvintc@gmail.com wrote:

> I am doing a project on OFDM equalization. So far, i have been doing > equalization for one ofdm symbol. I wish to ask how could i add more > subcarriers in by using Simulink? Is there any example that i can > refer to? > > Thanks alot.
*ERROR ERROR* You make a obvious error of *PRE* sumption ;] I know nothing of OFDM except what I read in first few paragraphs of http://en.wikipedia.org/wiki/OFDM and http://www.wave-report.com/tutorials/OFDM.htm There is some thing missing in your problem definition.
On Jan 2, 10:14 pm, kelvi...@gmail.com wrote:
> So far, i have been doing > equalization for one ofdm symbol. I wish to ask how could i add more > subcarriers in by using Simulink?
Problem statement not clear enough (atleast for me). One OFDM symbol should have multiple subcarriers. When you did equalization for one symbol, you might have defined multiple subcarriers, no?
> Is there any example that i can refer to?
Anyhow, couple of simulink models WLAN OFDM system available at Matlab central @ http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=3540&objectType=file http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=766&objectType=file Regards, Krishna http://www.dsplog.com
Sorry about my wrong concept on subcarriers. Thanks Richard and
Krishna for correcting me.

What i have done is about the same with the 2nd link provided by
Krishna. But, i do the equalization for data in the format of [Nx1].
That's the reason why i had misinterpreted the term subcarriers. I
wish to know whether my method is acceptable or not. As far as i know,
the first link is the one i thought i will be doing.

Sorry for any mistakes made. Thanks for ur patience.


>> how could i add more subcarriers
conceptually either by increasing symbol duration, or using a wider bandwidth