Geometric aspects of online packet buffering: An optimal randomized algorithm for two buffers

被引:9
作者
Bienkowski, Marcin [1 ]
Madry, Aleksander [1 ]
机构
[1] Univ Wroclaw, Inst Comp Sci, PL-50138 Wroclaw, Poland
来源
LATIN 2008: THEORETICAL INFORMATICS | 2008年 / 4957卷
关键词
online algorithms; network problems; packet buffering;
D O I
10.1007/978-3-540-78773-0_22
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
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.
引用
收藏
页码:252 / 263
页数:12
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