Bit error probability

Discussion in 'Homework Help' started by johnkaz77, Jun 10, 2011.

  1. johnkaz77

    Thread Starter Member

    Sep 20, 2010
    33
    0
    Hello,I'm writing a project for a class but i'm having some difficulties in the theoretical part and i would like some help...In a transmition through AWGN with FSK modulation given that the bit error probability without encoding is
    Pa= (1/2) *[e^(-Eb/(2*No))]
    how can we prove that bit error probability using repetition code (n,1) is
    Pb= (1/2) *[e^(-Eb/(2*n*No))] ???
     
  2. Georacer

    Moderator

    Nov 25, 2009
    5,142
    1,266
    Is your question the following?:

    If Pa is the probability of one bit being wrong, what will be the probability of n consecutive bits being wrong?

    Also, what are Eb and No?

    In general, the probability of n events with probabilities Pa,Pb,Pn happening together is Pa*Pb*...Pn.
     
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