The multi-hour service system design problem

Article Abstract:

Research describing a model for the solution of problems in multi-hour service systems is presented. In particular the model addresses the benefits of the non-coincidence of demand varying across the day for cost minimization.

Operations research, Management science, Models, Customer service, Mathematical optimization, Optimization theory

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Bandwidth packing with queuing delay costs: bounding and heuristic solution procedures

Article Abstract:

A study was conducted to characterize a novel solution for the bandwidth packing problem in telecommunications networks. A Lagrangean relaxation-based heuristic process was utilized to determine bounds and problem solutions. Computational analyses were then carried out on an array of instances. In addition, revenue loss and costs related with delay were considered in the study. Results indicated the efficiency of the solution in determining solutions for bandwidth packing problems.

COMMUNICATION, Communications, Broadcasting and Telecommunications, Analysis, Telecommunications industry, Telecommunications systems, Data compression, Telecommunication systems, Queuing theory, Bandwidth compression

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Routing and capacity assignment in backbone communication networks under time varying traffic conditions

Article Abstract:

A solution procedure was created to address the routing and capacity assignment problem in a backbone communications networks under time varying traffic conditions. The solution, which was based on the problem's Lagrangian relaxation, is effective for a wide array of traffic loads and cost structures. In the routing problem, specification of an upper limit on the mean link queueing delay in the network results to trade offs between link costs and response time to users.

Computer networks, Heuristic, Lagrangian functions, Heuristics (Psychology)

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