ATM網(wǎng)絡(luò)中寬帶與窄帶業(yè)務(wù)的呼叫接入平衡機(jī)制
Balancing admission mechanism of wideband and narrowband calls in ATM networks
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摘要: 該文提出了一種簡單的呼叫接入平衡機(jī)制。接入平衡機(jī)制配合CAC使用可以保證各類呼叫平等地接入網(wǎng)絡(luò)。并分析了在這種機(jī)制下當(dāng)ATM網(wǎng)絡(luò)中的業(yè)務(wù)流量接近滿負(fù)荷時,寬帶業(yè)務(wù)的呼叫對窄帶業(yè)務(wù)呼叫的阻塞概率。分析表明,這種平衡機(jī)制可以避免一種呼叫排擠另一種呼叫的現(xiàn)象發(fā)生。分析的結(jié)論對于在實踐中制定合理的呼叫接納和拒絕策略具有實際意義。
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關(guān)鍵詞:
- 異步傳遞模式; 呼叫接納控制; 呼叫; 阻塞; 概率
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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