An Optimization Based Approach for QoS Routing in High-Bandwidth Networks

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This paper proposes an optimization based approach for Quality of Service routing in high-bandwidth networks. The authors view a network that employs QoS routing as an entity that distributive optimizes some global utility function. By solving the optimization problem, the network is driven to an efficient operating point. In earlier work, it has been shown that when the capacity of the network is large, this optimization takes on a simple form, and once the solution to this optimization problem is found, simple proportional QoS routing schemes will suffice. However, this optimization problem requires global information.