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02-09-2009 07:54 AM
Hi everyone,
I'm a student who's just stared to design a very simple model of OFDM. In truth, it's quite a problem for me - a newbie. I stick in the first part: after letting my QAM signal go through the IFFT block (using FFT_v3.2) , I let the outport signal go through the FFT block immediately. The final result, however, is not similar to the original signal. So I can not do anything else, just trying to figure out wha's going on.
If anyone has a simple OFDM simulation, send it to me please. I'm very appreciate your help.
My email is: ngduyhieu@gmail.com
03-16-2009 11:49 PM
Well, I have made some change in my schematic and the result is good. My new one is, in fact, a small part of OFDM baseband system. I'm studying how to insert pilot and cyclic prefix as well.
02-09-2009 07:59 AM
02-10-2009 11:31 AM
Hi,
First, you can take a look at the followinh site, you cand find an OFDM reference design model.
http://warp.rice.edu/trac/wiki/OFDMReferenceDesign
Nex, you can try the Xilinx "wireless communication" website, you may find some useful designs (Modulator, demodulator,FFT...).
http://www.xilinx.com/esp/wireless.htm
good luck.
02-27-2009 05:55 PM
03-16-2009 11:49 PM
Well, I have made some change in my schematic and the result is good. My new one is, in fact, a small part of OFDM baseband system. I'm studying how to insert pilot and cyclic prefix as well.
03-16-2009 11:50 PM
05-08-2009 06:45 AM
hi ngduyhieu:
I am a new one on System Generator, and I also want to build a SystemGenerator model for OFDM,
can you send your OFDM model to me. Thanks
email: chenhongyi123@163.com
04-05-2010 11:47 PM
Hi ngduyhieu:
I am a student who want to design a simple model of ofdm ,but I am not familiar with system generator ,so can you send your OFDM model to me. Thanks.
Email:wangyukun2000@126.com
05-20-2010 09:06 PM
hi every one
i am designing an ofdm transceiver on system generator for completion of my bachelors degree. i need your help in this regard.
my 1st question is how to convert a serial data on a single channel of high data rate to many subchannels of low data rate in system generator.
2ndly how to use fft/ifft block in system generator. beacuse i m having N subchannels as inputs which are to be given to fft block with N points. but fft block accepts only a single input. how can i accamultae N inputs to make a single input before giving to fft block. or what i have to do.
i need ur help in this regard.
thankx a lot in advance.
take care
nafees
06-02-2010 10:22 AM
to convert single channel data into many channels you can use "
Time DivisionDemultiplexer" .
11-16-2011 03:31 AM
i am making ofdm tranciver in software please give me attachment of ofdm in system generater i am very thankful to you plz
02-27-2012 10:30 AM
11-16-2012 07:31 PM
Hello:
My friend, I'm a student who is designing a simple model of ofdm. I need your help in this regard.
My QAM modulation is not normal too,I am so desparational after a long time checking ,but making no use.
Can you send you model to me.My mail:zzuniversity@163.com
thanks a lot in advance.
famousstudent