LDPC Decoder source code

Status
Not open for further replies.

m_llaa

Full Member level 4
Joined
Mar 12, 2006
Messages
227
Helped
44
Reputation
88
Reaction score
21
Trophy points
1,298
Location
My Love Iran
Activity points
2,558
ldpc source code

Hi
I have a urgent need to LDPC decoder source code for SPA(Sum Product) or BP(Belif Propagation) algorithm.
I wrote 1 in matlab but its result doesnt match to some famous papers.
thanks

m_llaa@yahoo.com
 

Thanks
I think that link to mathwork is useful
I will test it
 

Hi to every one
I tested it. I compare my resualts by results in
"Low-Density Parity-Check Codes Based on Finite Geometries: A Rediscovery and New Results" by Shu Lin and Fossorier and Yu Khu
I simulate (255,175) EG LDPC. my BER in 1 dB and 2dB is the same to that paper but the difference in 3dB is large. (see attachment)

Please help me to simulate some LDPC code.
Regards
M.Lari
 

3dB - you might be forgetting the factor of "2" in the noise variance calculation.
 

Hi
No, I dont forget power 2.
also the difference is more than 3 dB, it is about 8 dB
 


Hi ,
Is it a textbook or paper.
Can you post it here.
Do u have the code for it.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…