A system for the design of packet-switched communication networks with economic tradeoffs
Computer Communications
Bandwidth assignment paradigms for broadband integrated voice/data networks
Computer Communications
Fuzzy multiobjective routing model in B-ISDN
Computer Communications
Bounds for global optimization of capacity expansion and flow assignment problems
Operations Research Letters
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The design of a P/S network embedded into a backbone facility network is discussed. The problem is formulated as a network optimization problem where a congestion measure based on the average packet delay is minimized, subject to capacity constraints posed by the underlying facility trunks. The variables in this problem are the routing on the express pipes (i.e. the channels that interconnect the P/S modes) and the allocation of bandwidth to such pipes. An efficient algorithm is presented for the solution of the above problem and it is applied to some representative examples. It is shown that for some test cases the congestion measure is substantially reduced with respect to the values obtained when the embedded topology is kept identical to the backbone topology. Dynamic reconfiguration schemes where the embedded topology is periodically adjusted to track the fluctuations in traffic requirements are discussed