PERFORMANCE ANALYSIS OF FAST RESERVATION PROTOCOLS IN ATM NETWORKS

In Asynchronous Transfer Mode (ATM) networks, VP/VC establishment and bandwidth reservation can be separately performed. Fast Reservation pr otocol (FRP), a recently proposed protocol, utilizes this unique featu re of the ATM technology to accomplish an efficient use of bandwidth. In FRP, a protocol data unit is called a burst, and a source requests the bandwidth reservation for each burst transmission on the establish ed connection. In this paper, we provide an exact analysis for a class of FRP to obtain the burst delay distribution. Another feature of ATM is that the transmission rate can be set freely if it is admitted by the network. In our modeling, this feature is also incorporated in suc h a way that the requested bandwidth is reduced if the first attempt t o reserve bandwidth is rejected by the network. Through numerical exam ples, appropriate values of control parameters such as the requested t ransmission rates are examined to show an effectiveness of FRP. The in fluences of the propagation delay and overhead due to control cells ar e also investigated by introducing an approximate technique.