Performance: Stop-and-Wait ARQ

• P=Probability of Frame Error

• ? = Tp/Tf

• U=Tf/[Nr(Tf+2Tp)]= 1/[Nr(1+2?)]

• Nr=? i Pi-1(1-P)=1/(1-P)

• U=(1-P)/(1+2?)

0

0

0

Tf

Tp

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