Assignments

Assignment 1 - Due February 3, 2009 Solutions
  1. Let 0.1 be the probability that any given bit in a received word is incorrect. Compute the probability that a received word contains undetected errrors given the following coding schemes.
    1. No code, word length = 6
    2. even parity, word length = 6
  2. What is the dimension of the binary vector space spanned by the set of vectors {(00101),(10100),(00110),(10001)}
  3. Find a basis for the dual space to the binary vectors spanned by {(10011),(11100),(00111)}
  4. Wicker, Chapter 4, Problem 1 (a),(b),(c),(d)
  5. Wicker, Chapter 4, Problem 2 (a),(b),(c)
  6. Wicker, Chapter 4, Problem 8 (a) also find a generator matrix for this code
  7. Compute a syndrome decoding table for the code with parity check matrix
    |100011|
    |010101|
    |001110|
Assignment 2 - Due February 13, 2009 Solutions
  1. Wicker, Chapter 2, Problem 7
  2. Express all of the nonzero elements of GF(13) as powers of a primitive element in GF(13)
  3. Wicker, Chapter 2, Problem 30 (b), (d), (f)
  4. Wicker, Chapter 2, Problem 34 (note GF(8) is given in Example 2-25)
  5. Wicker, Chapter 4, Problem 14
  6. Wicker, Chapter 4, Problem 15
  7. Wicker, Chapter 4, Problem 16 (d), (f), (h)
  8. Wicker, Chapter 4, Problem 20
Assignment 3 - Due March 13, 2009 Solutions
  1. Find lower and upper bounds on the required redundancy for a single error correcting code of length 15.
  2. Wicker, Chapter 5, Problem 1
  3. Wicker, Chapter 5, Problem 2
  4. Wicker, Chapter 5, Problem 3
  5. Wicker, Chapter 5, Problem 4 (a),(c)
  6. Wicker, Chapter 5, Problem 5 (a),(c)
  7. Wicker, Chapter 5, Problem 6 (a),(c)
  8. Wicker, Chapter 5, Problem 7
  9. Wicker, Chapter 5, Problem 8
Assignment 4 - Due April 1, 2009 Solutions
  1. Wicker, Chapter 3 Problem 11 (b),(d),(f)
  2. Wicker, Chapter 3 Problem 12 (a),(b),(d)
  3. Wicker, Chapter 3 Problem 13 (a),(e)
  4. Wicker, Chapter 8 Problem 1
  5. Wicker, Chapter 8 Problem 2
  6. Wicker, Chapter 8 Problem 3
  7. Wicker, Chapter 8 Problem 4 but use design distance 6
  8. Wicker, Chapter 8 Problem 9 (a),(b)
  9. Wicker, Chapter 9 Problem 2 (a),(c),(d)