13-5 Determine the number of bits in error for a BER of 10-6 and a message that

Question

13-5
Determine the number of bits in error for a BER of 10-6 and a message that is 23 million bits long.

13-19
Determine the Hamming bits for the ASCII character C (use odd parity and two stop bits). Insert the Hamming bits into every other location starting at the right.

Explanation / Answer

BER = error bits / total bits = 10^-6 => error bits/(23*10^6) = 10^-6 error bits = 23 ASCII C has bit pattern : 100 0011 starting bit : 0 ending bits : 11 since no. of ones in C is 3(odd parity) , parity bit :1 trasmitted signal becomes : (end bits)(parity bit)(original bits)(start bit) 11 1 100 0011 0 that is 11110000110

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