Errors with only puncture and insert zero blocks?

[Antonio_Magma]

Take a look at this. The input gets punctured by a vector [1 1 0 1 0 1].' and then immediately insert zero with the same vector [1 1 0 1 0 1].'

Why is there an error? There shouldn't be any errors right?

 

[mehtesham]

the puncture block remove elements from input sequence that they may be 0 or 1 but insert zero block only insert zeros in selected places.then tx is (may) differ from rx.

 

[Antonio_Magma]

Ic, so there must b error correction blocks such as Viterbi after insert zero right

 

[mehtesham]

you first need to encode input data with some error correcting code like convolutional codes (this block after ber. binary generator) then you can use appropriate viterbi decoder after insert zero block.(there may remain some errors in output but errors will decrease)