in Communications recategorized by
230 views
0 votes
0 votes

A digital communication system transmits a block of $N$ bits. The probability of error in decoding a bit is $\alpha$. The error event of each bit is independent of the error events of the other bits. The received block is declared erroneous if at least one of its bits is decoded wrongly. The probability that the received block erroneous is

  1. $N\left ( 1-\alpha \right )$
  2. $\alpha ^{N}$
  3. $1-\alpha ^{N}$
  4. $1-\left ( 1-\alpha \right )^{N}$ 
in Communications recategorized by
1.9k points
230 views

Please log in or register to answer this question.

Welcome to GO Electronics, where you can ask questions and receive answers from other members of the community.