A.What does the CRC generator polynomial append to the data unit? How does the CRC checker know that the received data unit is having some errors? B. What do you mean by a binary cyclic code? Discuss...

A.What does the CRC generator polynomial append to the data unit? How does the CRC checker know that the received data unit is having some errors?

B. What do you mean by a binary cyclic code? Discuss the features of encoder and decoder used for cyclic code using an (n – k) bit shift register.

C. How can LDPC codes be represented graphically? Give step-by-step procedure for LDPC decoding using the bit-fl ipping algorithm.