【摘要】 ATM网络中支持的突发业务如语音、视频和图像等要求提供不同的服务质量。为了满足这些突发业务的各种服务质量要求,主要以马尔可夫到达过程来模拟ATM网络中的两类具有不同QoS要求的突发业务流,并为各种不同业务提供QoS保证。通过使用嵌入马尔可夫链和灵活的辅助措施,获得用户在离开时刻各类业务的队列长度,并可以推导出任意时刻下的业务队列长度,导出延迟和损耗等性能参数。并对所提出的方案进行了仿真分析,结果表明该方案完全可以满足ATM网络中突发业务的服务质量。更多还原

【Abstract】 Bursty traffic such as voice, video and images is supported in ATM networks and requires different quality of service(QoS). To meet the various QoS requirements and QoS guarantees of bursty traffic, a dynamic priority queue with two types of traffic is proposed and analysed by Markovian arrival process. Using the embodied Markov chain, performance measures such as loss, the length or queue and delay are derived. Some numerical examples are presented to show the effects of the scheduling policy. It’s better for meeting the QoS requirements of bursty traffic in ATM networks by simulating and analyzing the scheme.更多还原