传统的CAC策略主要关注的是如何协调阻塞率和中断率使得资源利用率最大,但在多媒体业务接入CDMA通信系统时,大业务量流媒体业务一旦接入,将掠夺性地占用资源,从而使得其他类型的业务不能公平地共享资源。通过采用柯布-道格拉斯效用函数构造了一种价格函数,在保证资源利用率的前提条件下,实现了在不同的负载条件下各类业务之间资源使用的公平性。
The most concern of traditional CAC strategies is to harmonize the blocking probability and dropping probability,so as to maximize the resource utility. However,in the multimedia CDMA networks,once the high load stream traffic is admitted,it will over-use the resource greedily,which will cause the unfair use of the resource to other kinds of traffic. By using Cobb-Douglas utility function to construct a price function,the fairness of resource utilization in different load condition was achieved,while guaranteeing the resource utilization.