EEC 480 Homework2 Due at 08:00 am, October 06, 2017·Please turn in hard copies.

Question

EEC 480 Homework2 Due at 08:00 am, October 06, 2017·Please turn in hard copies. Thanks. 1. Fill in the blank with the value of the parity bit using odd parity. a. 01000110 b. 00100000 c. 00100111 d. 10000111 2. The following bytes were originally written using odd parity. In which can you be sure that an error has occurred? Parity bit Byte a. 10010001 b. 01101100 c. 0 00111010 d. 0 01101011 3. When using Checksum as the error detecting method, if the received codeword by at the receiver end is "25 11 12 7 13 48". The last number is the number we have agreed on to be divided by and the rest are original data message. Is the received codeword correct? Show the math of verification. 4. If generator G(x) xx'x +1, data message M(x) xx+x+x'+x, what the Transmitted data T(X) is supposed to be?

Explanation / Answer

Question 1

A ) there are odd number of 1

So odd parity bit is 0

B) there are odd number of 1

So odd parity bit is 0

C) there are even number of 1

So the odd parity bit must be 1 to make the whole set contain odd number of 1

D) there are even number of 1.

So the odd parity bit must be 1 to make the whole set contain odd number of 1.

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