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Geometric Aspects of Online Packet Buffering: An Optimal Randomized Algorithm for Two Buffers

By Marcin Bienkowski and Aleksander Mądry


We study packet buffering, a basic problem occurring in network switches. We construct an optimal 16/13-competitive randomized online algorithm PB for the case of two input buffers of arbitrary sizes. Our proof is based on geometrical transformations which allow to identify the set of sequences incurring extremal competitive ratios. Later we may analyze the performance of PB on these sequences only

Year: 2008
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