cyclic.m

this file consists of many matlab programs

%%non systematic cyclic coder %%
clc;
clear;
%ENCODER SECTION
n=input('enter the value of n ');
k=input('enter the value of k ');
q=n-k;
z=0;
fprintf('\nthe degree of polynomial is %d',n-1);
p=input('\nenter the coefficients of the polynomial ')
b=p(:,end:-1:1);
[j,i]=size(b);
if i~=(n)
    disp('invalid polynomial')
else
 for x=q:-1:0
     z=z+1;
     for y=i:-1:1
         c=(y+x)*b(1,y);
         if c~=0
             g1(z,c)=1;
         end
     end
 end
end
disp('the generator matrix is')
g=g1(:,end:-1:1)
fprintf('the message bit length should be %d\n',k)
m=input('enter the message bits ');
for u=1:1:n
   code(1,u)=0;
   for v=1:1:k
       code(1,u) = rem((code(1,u) + m(1,v)*g(v,u)),2);
   end
   fprintf('\n\tcode%d = %d\n',u,code(1,u));
end
disp('the code is c=')
disp(code)