Three ways to define a Poisson process (3)The interval times are independent and obey exponential distribution with rate P(t≤t)=1-ew ↓↓↓↓出↓出↓ exp(入) ·Proof of2→3 P(tst)=1-P(>)=1-P(0arrival within t) Weigiang Sun Communication Networks 10Weiqiang(Sun Communica/on(Networks Three(ways(to(define(a(Poisson(process (3)(The(interval(/mes(are(independent(and(obey( exponen/al(distribu/on(with(rate(λ exp(λ) • Proof(of(23 10