给出了传统业务流的有效带宽的计算方法和基于自相似业务流的有效带宽的计算方法,分析了分组丢失率、带宽利用率与缓冲区大小之间的关系,指出了网络设计中根据有效带宽进行资源管理的优越性。仿真结果表明,对自相似业务流,基于自相似业务流的有效带宽的计算比基于短相关模型的有效带宽的计算能保证更好的服务质量。
The effective bandwidth calculation methods of short-range dependent traffic and self-similar traffic are given. The relationship among buffer size, packet lost rate and effective bandwidth utilization is analyzed. The advanced performance of effective bandwidth-based source distribution in the networks design is pointed out. The simulation results show that effective bandwidth of self-similar traffic’ are more well QoS than short-range dependent traffic effective bandwidths.
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