Optimal utilization and extension of interoffice trunking facilities

Many optimization problems in the communications field are characterized by the fact that they involve large numbers of highly interconnected variables. This has forced communications engineers, planners, and managers to resort to various suboptimization schemes, many of which have been of the empirical or trial-and-error types. This situation has in large part been caused by the lack of adequate mathematical and numerical techniques for analyzing and solving such problems.