Aida, M. and Saito, H., "Traffic contract parameters and CAC guaranteeing cell loss ratio in ATM networks," 1993 Asia-Pacific symposium in information and telecommunication technologies (APSITT93) (1993).
Connection Admission Control (CAC) is a key part of traffic control and still leaves several challenging problems peculiar to ATM networks. One of these problems is how to assign sufficient bandwidth for any cell arrival processes that satisfies the source traffic descriptor values. These values are specified by negotiation between the network and a user at the connection setup. In general, however, the actual source traffic values are not equivalent to the negotiated values. Therefore there are two aspects involved in solving this bandwidth-assignment problem: (i) how to estimate sufficient bandwidth under the assumption that the negotiated values are equal to the actual values, (ii) how to estimate sufficient bandwidth using the negotiated values without the assumption of equality. Since the first aspect has already been extensively studied, this paper focuses on the second and shows the sufficient conditions for the negotiated source traffic descriptors that ensure that the cell-loss ratio calculated from the negotiated values is always upper-bound of the actual cell-loss ratio. In addition, by combining (i) and (ii), we propose a CAC that incorporates this condition.