ATM网络中宽带与窄带业务的呼叫接入平衡机制
Balancing admission mechanism of wideband and narrowband calls in ATM networks
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摘要: 该文提出了一种简单的呼叫接入平衡机制。接入平衡机制配合CAC使用可以保证各类呼叫平等地接入网络。并分析了在这种机制下当ATM网络中的业务流量接近满负荷时,宽带业务的呼叫对窄带业务呼叫的阻塞概率。分析表明,这种平衡机制可以避免一种呼叫排挤另一种呼叫的现象发生。分析的结论对于在实践中制定合理的呼叫接纳和拒绝策略具有实际意义。Abstract: This paper presents a balancing admission mechanism of wide band and narrow band calls in ATM networks. The combination of the mechanism with CAC can guarantee the fair admission of all kinds of calls. This paper also analyzes the probabilities of wide band calls blocking the narrow band calls in ATM networks under the mechanism when the traffic approaching to the system capacity. The analysis exposes that the proposed balancing mechanism can avoid the phenomena of one kind calls blocking the other kind calls. The result of the analysis is helpful for choosing a reasonable call admission and call refusing policy in practice.
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