Abstract
In the ring loading problem, traffic demands are given for each pair of nodes in an undirected ring network and a flow is routed in either of two directions, clockwise and counterclockwise. The load of an edge is the sum of the flows routed through the edge and the objective of the problem is to minimize the maximum load on the ring. Myung [J. Korean OR and MS Society, 23 (1998), pp. 49--62 (in Korean)] has presented an efficient algorithm for solving a problem where flow is restricted to integers. However, the proof for the validity of the algorithm in their paper is long and complicated and as the paper is written in Korean, its accessibility is very limited. In this paper, we slightly modify their algorithm and provide a simple proof for the correctness of the proposed algorithm.
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