Abstract: Aiming at the problem that hidden resources may exist in the procedure of resource reservation processing, this paper proposes a resource reservation rate adjustment mechanism based on arrival rate measurement. When the divergence of a flow’s arrival rate and reservation rate goes beyond the threshold set by the network manager, the reservation rate of the flow is set to its arrival rate. Little time scale average rate estimation based on rate envelope is adopted for the arrival rate measurement and the traffic similarity is considered. Simulation results show that the mechanism can effectively deal with the hidden resource problem and achieve high resource utilization rate.

Key words: Quality of Service(QoS), resource reservation, rate estimation, reservation rate adjustment

摘要： 针对资源预留处理过程中可能存在的资源隐藏问题，提出一种基于到达速率测量的预留速率校正机制。当业务的到达速率和预留速率之间的偏差大于设定的阈值时，将业务流的预留速率调整为到达速率。业务流到达速率的测量采用基于速率包线的小时间尺度平均速率估计方法，并考虑流量自相似特征。仿真实验验证了该机制能有效解决资源隐藏问题，提高资源利用率。

关键词: 服务质量, 资源预留, 速率估计, 预留速率调整

CLC Number: 

• TP393