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期刊论文
Congestion Control of Differentiated Service Network
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The real application of differentiated services (DiffServ) network requires the DiffServ routers to support different data rates and time delays for the subscribers with different priorities. However, classical routers and AQM algorithms for the routers can not meet the requirements. To solve the problems, this paper develops the schemes of DiffServ edge router (DER) and DiffServ core router (DCR) with multiqueues, classifier and scheduler and a DiffServ AQM algorithm. The proposed DiffServ AQM algorithm based on DER can process the heterogeneous and classified traffic flows. The DiffServ AQM algorithm is derived from two theorems about the congestion conditions of DiffServ network in different links, it can prevent the possible congestion and ensure the data rates and time delays for the subscribers with higher priorities. The system simulations validate the proposed DiffServ routers and DiffServ AQM algorithm.
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