Three ways to define a Poisson process (1)In an infinitesimal time interval dt,there may occur only one arrival,and this happens with probability λdt 40444 dt Weigiang Sun Communication Networks 8Weiqiang(Sun Communica/on(Networks Three(ways(to(define(a(Poisson(process (1)(In(an(infinitesimal(/me(interval(dt,(there(may(occur( only(one(arrival,(and(this(happens(with(probability( λdt dt 8