sriramsv
Joined: 14 Mar 2005
Posts: 17
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 31 May 2005 8:58 Question about LDPC, error correcting codes |
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hi friends,
I'm doing my masters in Elect engg.My final proj is on simulation, synthesis and implementation of LDPC codes. when i went through some of the technical papers, they were spking abt various functional evaluation methods (like CORDIC, polynomial approximation, look up table etc)used.Is tanner graph one of the Func eveluation method or it is diff from the funct eveluation methods. Do i have to implement both tanner graph n any of the funct eveluation in my design/coding. if so when should i use tanner graph n funct evaluation method. i'm kind of confused in that topic. it will be gr88 if someone can briefly tell abt this.
thanks a lottt
sriram
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davyzhu
Joined: 23 May 2004
Posts: 521
Helped: 3
Location: oriental
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05 Jun 2005 5:54 Question about LDPC, error correcting codes |
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Hi sriramsv,
I just guess that you want to design a LDPC decoder. And you want to do the hardware AWGN channel evaluation.
There are something you should know.
1, Tanner graph is the LDPC decoder structure that perform BP algorithm. You should read some basic paper about it.
2, Cordic and other things is another aspect. They generate the Gaussian noise. I don't think its necessary.
Hope this helped!
Cheers!
Davy
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