摘要： 比较了在ＷＦ~２Ｑ调度机制下平均分配和基于代价的带宽分配算法，根据流体流模型对后者提出了一种改进算法，模拟结果表明能提高资源利用率，降低阻塞概率。

关键词: 服务质量, 保证服务, 准入控制, WF~2Q

Abstract: This article compares two methods of bandwidth which are equal division and cost-based allocation under the scheduling mechanism of WF~2Q, and improves the second according to fluid flow model, the result of simulation indicates it improves the utilization of resource and decreases the probability of block.

中图分类号: 

• TN915