Dear Viju
Is this a part of your program or you have some other lines in it.??
Your current program is working fine and I am able to execute it without any
errors.
One of the output I got from your program
Random Data Bit Array
0 0 0 1 1 0 1 1 0 1
Codes with parity bit to be transmitted
0 0 0 1 1 0 1 1 0 1 1
Codes with Error
0 0 0 0 1 0 1 1 0 1 1
With Best Regards
Prajit S Nair
On 8/21/07, tp_viju wrote:
> Hi,
>
> I got a program as below which generates random binary codes (Phase
> 1.1). After that have to add parity bit to the codes(1.2). The next
> step is to generate error to the code, but it generates error ( Index
> exceeds matrix dimensions). Y is it so and some one got the right
> answer?
>
> %Phase 1.1
>
> n;% # of bits
> b=round(rand(1,n));% creates random binary code
> disp('Random Data Bit Array');
> disp(b);
>
> %Phase 1.2
>
> a=rem(sum(b),2)==1;% checking for parity
> b(n+1)=a; % adds parity check bit to the codeword
> disp('Codes with parity bit to be transmitted')
> disp(b);
>
> noise=randerr(1,n+1); %create noise
> error=bitxor(b,noise); %introduce error into code
>
>
>