パラメータの少ないパケット廃棄方式

概要

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In order to avoid congestion in the network and to achieve a fair share of the resource among communication flows, the packet discarding method called RED (Random Early Detection) has been proposed. In that method, a router randomly discards arriving packets before its buffer overflows. Although some enhanced methods of RED have been proposed, they employ complicated controls to achieve high throughput and fairness among communication flows. However, many control parameters in the complicated methods would prevent from reaching their practical stages. This paper proposes a simple packet discarding method which reduces the number of parameters and provides better performance than existing ones. Concretely speaking, our method omits the probabilistic packet discard from RED. Via simulation, the proposed method provides higher throughput than existing ones and almost equal fairness.
2010-11-01