Heavy业务流的有效带宽及其基于测量的接纳控制算法

Effective bandwidth and measurement-based admission control algorithm for heavy traffic

基于具突发性Heavy业务流的TES(Transform Expand Sample)模型,推导出一个计算Heavy业务流有效带宽的实用的公式,并由此公式求得的有效带宽,作为基于测量的接纳控制(MBAC)算法中新业务流所申请的带宽。仿真结果表明,采用该计算公式求得的有效带宽,MBAC算法可以取得更好的网络性能。

Based on the TES （Transform Expand Sample） models of heavy traffics with certain burstiness, a new practical formula for computation of effective bandwidth of traffics was derived out. When the effective bandwidth computed by means of this formula was used as the declared bandwidth of the newly coming traffic, all the simulation results on the related measurement-based admission control （MBAC） algorithm showed that the better utilization of network could be achieved than the way of those MBAC algorithms that only used average rate or peak rate as the declared bandwidth for newly coming traffic.