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MIMO-OFDM


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totohaha



Joined: 15 Jan 2008
Posts: 2


Post15 Jan 2008 19:08   

matlab script mimo maximum likelihood


I have finish an OFDM program in Matlab, now I wan to modify it into a MIMO-OFDM, could anybody tell me where I should modify? channel matrix?
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ironheart



Joined: 27 Sep 2007
Posts: 26
Helped: 2


Post16 Jan 2008 19:29   

MIMO-OFDM


now, if you want to modify to a MIMO-OFDM, you should research Space time code or V-BLAST ... because these relate to MIMO. You have finished OFDM program that is you finished modulating/demodulating,IFFT/FFT and fading channel. However, to finish MIMO-OFDM you also should read Maximum Likelihood. after investigated i think you have the ideas to advance your program.

Goodluck!
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salam2000



Joined: 24 Jul 2006
Posts: 88
Helped: 12


Post16 Jan 2008 21:01   

Re: MIMO-OFDM


removed!
some channel coefficients:
(exp: exponential or SUI4 or Cost207 or ...).


Last edited by salam2000 on 03 Mar 2008 20:49; edited 1 time in total
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barlee_85



Joined: 16 Jan 2008
Posts: 8


Post17 Jan 2008 6:47   

Re: MIMO-OFDM


hi totohaha , just split the input vectors may be as alternate bits depending on the number of transmitters ,transmit through the fading channel,on the reciver side detect the bits using V-BLAST algorithm,will work fine
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Sachin21



Joined: 16 Jan 2008
Posts: 7
Helped: 1


Post22 Jan 2008 15:01   

Re: MIMO-OFDM


hi
i think ur que is where to apply mimo in mimo-ofdm system?

Added after 34 seconds:

hi
i think ur que is where to apply mimo in mimo-ofdm system?
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Shwan



Joined: 26 Nov 2007
Posts: 13
Location: UK


Post23 Jan 2008 12:29   

MIMO-OFDM


Hi totohaha,
Could you please send me the OFDM syntax, because I am working on it, and I have difficulties to design an OFDM system with multipath fading.
Very thanks in advance.
sh.
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Post23 Jan 2008 12:29   

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grozdov



Joined: 06 Feb 2008
Posts: 2


Post06 Feb 2008 17:40   

Re: MIMO-OFDM


I am a telecommunication students and interested in OFDM.
I am still studying OFDM. Please may you send me your MATLAB codes for OFDM? so that I can even see the plot for Eb/No versus SNR or BER performance or any other performance analysis.
Thanks
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vkekk



Joined: 30 Mar 2007
Posts: 178


Post08 Feb 2008 9:15   

Re: MIMO-OFDM


What is the differences between MIMO and MIMO-OFDM and their advantages... give some points...

IN what way MIMO-OFDM is efficient than MIMO...

iam thinking we hve to modification at the transmitter side... that is before modulation...
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nalino



Joined: 11 Dec 2003
Posts: 317
Helped: 4


Post08 Feb 2008 14:59   

MIMO-OFDM


can you guys upload the programs made?
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behy



Joined: 15 Aug 2006
Posts: 77
Helped: 2


Post10 Feb 2008 13:40   

Re: MIMO-OFDM


you should divide the transmitted data into Mt bit stream. after modulation with OFDM you should transmit the modulated signals through MIMO channel
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vkekk



Joined: 30 Mar 2007
Posts: 178


Post10 Feb 2008 18:44   

Re: MIMO-OFDM


1. Why precoding requires knowledge of the channel state information (CSI) at the transmitter.

2. what is the importance of CSI and Wht are their parameters?


What is the differences between MIMO and MIMO-OFDM and their advantages... give some points...

IN what way MIMO-OFDM is efficient than MIMO...

pls help....
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eslama



Joined: 21 Sep 2007
Posts: 7


Post25 Feb 2008 12:26   

MIMO-OFDM


al salam 3alycom,
i want to ask that i use dvbt-sim but the input to this system is come from birnolli source but i want to enter the output from video source so how can i convert the output from Video source to mpeg stream on matlab simulink?
thanks
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arahman_eee



Joined: 19 Feb 2008
Posts: 13


Post06 Jun 2008 11:22   

Re: MIMO-OFDM


hi, Please upload your MIMo-OFDM matlab code?thanks for advance..........arif rahman
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cnuchcnu



Joined: 24 Oct 2009
Posts: 4
Location: calicut


Post25 Oct 2009 17:31   

MIMO-OFDM


hi to all,
i am doing project on MIMO SFBC CI OFDM. please will you say how to implement receiver part in MATLAB.
please will you forward any matlab code related to this. At least will you send steps for implementing this.
thank you very much in advance.
Regards
srinivas
srinivasarao473(at)gmail.com
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barithegreat



Joined: 07 Oct 2008
Posts: 8


Post27 Oct 2009 22:40   

Re: MIMO-OFDM


Hi
I have done some work on MIMO-OFDM. I am attaching a file as well. Can any body tell me how can i used multiuser using TDD in this script.
Thanks
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bodepudichowdary



Joined: 29 Oct 2009
Posts: 3
Location: london


Post30 Oct 2009 0:09   

Re: MIMO-OFDM


hi can you help me. can you send the total code to bvrchowdary(at)gmail.com plzzzzzzzzzzzzz
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bodepudichowdary



Joined: 29 Oct 2009
Posts: 3
Location: london


Post30 Oct 2009 11:13   

Re: MIMO-OFDM


Hi,

Can you send me the exponential and sui and cost207 models details to my mail bvrchowdary(at)gmail.com. plzzzzzzzz i need them urgently. help me plzz. other wise inform to me where can i get more infomation about them. if you have any matlab code also i need them plzzzzzzzzzzzzzzzz.




salam2000 wrote:
removed!
some channel coefficients:
(exp: exponential or SUI4 or Cost207 or ...).
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