computer network chapter 8

Question

Given the dataword 101001111 and the divisor 10111, show the generation of the CRC codeword at the sender site

1. using binary division (Modulo 2 Arithmetic)
2. Polynomial method

Answer 1

Code word is 1010011110101

Answer 2

The CRC bit generated is 0111.

It will be appended after the initial code, so the codeword is -1010011110111.

 

Hope it helps