Randomized Two-Valued Bounded Delay Online Buffer Management

Christoph Dürr, Shahin Kamali

In the bounded delay buffer management problem unit size packets arrive online to be sent over a network link. The objective is to maximize the total weight of packets sent before their deadline. In this paper we are interested in the two-valued variant of the problem, where every packet has either low (1) or high priority weight ($\alpha$ > 1). We show that its randomized competitive ratio against an oblivious adversary is 1 + ($\alpha$ -- 1)/($\alpha$ 2 + $\alpha$).

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