Schedulability analysis for real-time messages over switched Ethernet with EDF scheduling
Schedulability analysis for real-time messages over switched Ethernet with EDF scheduling
复制标题
使用 EDF 调度对交换以太网上的实时消息进行可调度性分析
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Zhen Wei
中科院分区：
文献类型：
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作者：
M. Tan;Zhen Wei
针对交换式以太网不能满足工业通信实时性要求的缺点，提出了一种改进的消息传输模型，其中交换机和终端节点采用最早截止时间优先（EDF）调度控制实时流量。此外，提出了一种在不改变以太网交换机工作特性的情况下，由源节点和目的节点对周期性消息进行分布式接纳控制的方法。在此基础上，利用实时调度理论，给出了交换以太网实时周期消息的可调度性条件，并对其进行了验证。
To overcome the drawback that switched Ethernet can not meet the real-time requirements in industrial communications, an improved message transmission model in which switch and the end-nodes control the real-time traffic with Earliest Deadline First (EDF) scheduling was proposed. In addition, a distributed admission control method for periodic messages which is performed by the source and the destination nodes without the modification of the operational features of Ethernet switch was presented. Moreover, a more general schedulability condition for real-time periodic message over switched Ethernet was given and proved by using real-time scheduling theory.