EDF调度算法在COTS交换式工业以太网上的实现

将交换式以太网引入工业实时通信领域正受到越来越多的关注，但是，基于成熟商用组件技术（COTS）的交换式以太网在实时性方面的缺陷限制了其在工业实时通信领域中应用。基于FTT模型（Flexible Time—Triggered communication paradigm），在无须对现有交换以太网做任何硬件改动的前提下，实现了交换式以太网上周期性实时消息与其它消息在时间上严格隔离，并针对周期性实时消息传输提出了一种基于EDF的实时性调度算法，仿真实验表明该算法具有明显的优点。

EDF Scheduling Algorithm over COTS Switched Industrial Ethernet

Nowadays,switched Ethernet is considered as an attractive enabling technology for supporting industrial communication needs.However,COTS Ethernet switches still suffer from a few drawbacks that affect negatively their real-time communica-tion capabilities.In this paper we propose using the Flexible Time-Triggered communication paradigm to enhance the tem-poral behavior of Ethernet switches with respect to periodic messages and we present an EDF-based real-time scheduling algorithm for periodic messages over...