- Problem 1.
Suppose a horizontal vertical parity check codeword is sent.
The codeword is received, as the following array of bits,
with a single bit error:
00101
00101
11101
11010
01111
Fid the bit error and determine the correct transmitted codeword.
- Problem 2. Is the following string of bits is a CRC code word for
the generator polynomial g(D) = D^2 + 1 (here, D^i means "D to
the power i"):
10110100
If it is a codeword, what is the data string?
- Problem 3. Is the following string of bits is a CRC code word for
the generator polynomial g(D) = D + 1
100100
If it is a codeword, what is the data string?
- Problem 4. Consider the generator polynomial g(D) = D^2 + 1
and the data string 11010.
What is the corresponding CRC code word?
- Textbook problem 2.12.
- Textbook problem 2.22 (a,b). Isolated error in the feedback direction
means the round trip
feedback time can be extended by a frame transmission time.
- Textbook problem 2.26.
- Textbook problem 2.30.