Degradation degree based fair rate adaptation algorithm for wireless networks with mobile nodes

F. Rango, G. Aloi, S. Marano
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引用次数: 4

Abstract

This paper focuses its attention on the rate adaptation problem in wireless network with mobile hosts. We define two new quality of service (QoS) indexes. They express the degradation degree of bandwidth and the frequency of bandwidth degradation suffered by data packet flows. These indexes are used to define and propose a new rate adaptation algorithm named degradation degree based fair algorithm (DDFA). The aim of the proposed algorithm is to fairly distribute the effects of QoS degradation among the cell visited by the mobile hosts. The DDFA algorithm has been compared with a fair adaptation algorithm proposed in the literature. The performance evaluation shows that proposed algorithm reduces the QoS degradation of flows without adding control overhead compared to the reference fair algorithm.
基于退化度的移动节点无线网络公平速率自适应算法
本文主要研究移动主机无线网络中的速率自适应问题。我们定义了两个新的服务质量(QoS)指标。它们表示数据包流所遭受的带宽退化程度和带宽退化频率。利用这些指标定义并提出了一种新的速率自适应算法——基于退化度的公平算法(DDFA)。该算法的目的是为了在移动主机访问的小区之间公平地分配QoS退化的影响。将DDFA算法与文献中提出的一种公平自适应算法进行了比较。性能评估表明,与参考公平算法相比,该算法在不增加控制开销的情况下减少了流的QoS退化。
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