Reed solomon Code for encoder and decoder

[gkciitd]

octave reed solomon

Hi all

Can anyone plz mail me the matlab code for rs encoder and decoder

gkciitd@gmail.com

Thanks

gkc

 

[ankitchauhan]

reed solomon matlab example

hi chin...
i saw that u had a code for reed solomon in matlab with all the explanaton ...could you please forward it to me on ank_chauhan87@yahoo.co.in

thanks in advance

 

[samuraign]

reedsolomon decoder and encoder matlab codes

how about sharing your code in this post Mr.Chin.

I too interested.

 

[mar_deepmode]

koetter interpolation source code

hi chin...
i saw that u had a code for reed solomon in matlab with all the explanaton ...could you please forward it to me on ank_chauhan87(at)yahoo.co.in

thanks in advance

Hello.
I can donate you the needed points so you can download it.
Do you still need the code?

This is valid for gkciitd, too.

I prefer not to send code to e-mails.
Please, download it from edaboard after having at least 1 post!

Regards,
mar_deepmode

 

[andy8888]

r-s encoder + matlab code

hi all

I attend to video transmission, I need the RS codes(matlab) for FEC to simulate my system, can anyone send me the source code? cause I'm a newcomer, I don't have enough points to get the files. Thanks a lot!

andypone@hotmail.com

 

[mar_deepmode]

rs encoder

I'll donate you the needed points.

Points donated.

Cheers,
mar_deepmode

 

[firendchn]

reed solomonmatlab code

what is the difference bwteen BCH and RS codec ? who can explain it?thanks!

 

[Usama_Yemen]

roth-ruckenstein algorithm matlab

Hi there !

I need that code (RS using MATLAB) but couldn't download it because of the points required.

Any one can help ?

 

[jfz]

rs encoder in matlab

thanks for your help. I reallly need it to do my research.
But I do not have enough points to download files.
Are there any one can help me?
please and thanks a lot

 

[naveenkishore]

vhdl code for reed solomon and matlab

HiEveryone,

Can anyone add me points to download matlab program code.Please i really need the program code for my course-Error correcting codes.

If possible can anyone send to my mail "naveen_bhaghat@yahoo.com"

Thanks a lot,
Naveen

 

[thoothu]

rs codes matlab

can anyone have program for soft decision decoding???

 

[shakshi]

reed solomon(14,10)

hiii i got the encoder prog fr rs encoder.. bt findin difficulty in gettin a decoder.

plz help...

 

[srilakshmi28]

rs decoder software source code

hi
i am inmplementing rs decoding in my project and i need to use ccsds(255,223) standards i am having a code which is having a primitive element alpha=2,but i need to have alpha=alpha^11,can anyone help me out where i need to change the code.

thanks

 

[chin]

rs code source code

Hi,

You can go through this paper, this will help you,

"Field Programmable Gate Array Implementation of
Reed-Solomon Code, RS(255,239)"

www.ce.rit.edu/~sjyeec/papers/nyworkshop-rs-codec.pdf

"VLSI IMPLEMENTATION OF A ( 255, 223) REED-SOLOMON ERRORCORRECTION
CODEC"

wireless.asti.dost.gov.ph/sitebody/techpapers/ECECONF2001-ReedSolomon.doc

regards,
chin

 

[zahedi79]

project on reed-solomon+matlab

Salam
By my expriments in Verilog codes.
i use these files in MATLAB for simulate.
thats so useful
enjoy all

 

[yubingz]

vhdl code for reed solomon

i need points!

 

[ahmad556]

rs coding in matlab

Hello Everyone.
Can anyone tell me how to earn points in order to download files?
thanx in advance

 

[lehio]

reed solomon (31,15) coding

hi all

i need this code

 

[badeah]

rs decoding in matlab

If you are working with IEEE Std. 802.16-2004, then you might find the following useful which will work both in MATLAB if you have the Communications Toolbox or with Octave (which is available at www.octave.org).

% Reed-Solomon coding based on the test vectors presented in
% IEEE Std 802.16-2004


%% Input vector x and output vector z taken from Sect. 8.3.3.5.1, p444

x = ['D4';'BA';'A1';'12';'F2';'74';'96';'30'; ...
     '27';'D4';'88';'9C';'96';'E3';'A9';'52'; ...
     'B3';'15';'AB';'FD';'92';'53';'07';'32'; ...
     'C0';'62';'48';'F0';'19';'22';'E0';'91'; ...
     '62';'1A';'C1'];

z = ['49';'31';'40';'BF';'D4';'BA';'A1';'12'; ...
     'F2';'74';'96';'30';'27';'D4';'88';'9C'; ...
     '96';'E3';'A9';'52';'B3';'15';'AB';'FD'; ...
     '92';'53';'07';'32';'C0';'62';'48';'F0'; ...
     '19';'22';'E0';'91';'62';'1A';'C1';'00'];

x = hex2dec(x)'; % This is the input data from the standard
z = hex2dec(z)'; % This how the output data should be

% Note that the parity bytes are first four bytes in the vector z, namely
% '49';'31';'40';'BF' (hex).


%% Define Reed-Solomon coding parameters 
m = 8; % Number of bits per symbol
n = 2^m-1; % Length of encoded data (255 for m=8)
k = 239; % Required length of source data (ie RS(255,239) )
t= (n-k)/2;

%% Define the field generator primitive polynomial (D^8+D^4+D^3+D^2+1)
% in decimal form according to eqn.(67), p432.
p = 285; 

%% Form the msg vector from the input data. If the input data is shorter
%  than required, prefix it with zeros.
Nzeros = k-length(x)-1; % Calculate how much zero padding to add.
xk=[zeros(1,Nzeros) x 0]; % Make source data. Prefix with zero pads if needed.

%% Creat Galois array from the source data
msg=gf(xk, m, p);

% Calculate the code generator polynomial according to eqn.(66) on p432 
% of the standard (note that the 4th argument is 0 in the function call)
% Expanding eqn.(66) gives the following polynomial coefficients:
% 1 59 13 104 189 68 209 30 8 163 65 41 229 98 50 36 59
gen=rsgenpoly(n, k, p, 0);

%% Encode the message
code = rsenc(msg,n,k,gen);
% Note that Octave does not appear to place the parity bytes where expected so some
% sorting is required.

code_new = [code(k+1:k+(t/2)) code(Nzeros+1:k)];

the axample you simulat is using qpsk 3/4 there is mentioned that this modulation use rs code rs(36,40) but in your simulation the length of x is 35 why it's not 36??
i need your answer soon thank you.

 

[Sargia]

reed solomon (7,3), (255,239)

Hi all,
Right now,I'm working on RS encode and decode.
Need some points.