| 基于以太网通信过程的实时改进方法研究 |
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| 引用本文： | 胡立坤,王庆超.基于以太网通信过程的实时改进方法研究[J].计算机工程与设计,2006,27(9):1516-1520. |
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| 作者姓名： | 胡立坤 王庆超 |
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| 作者单位： | 哈尔滨工业大学,航天学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 分析了以太网的通信过程、冲突处理方法、基本要求及其限制原因,指出1-坚持CSMA/CD处理过程与BEB退避算法对于实时节点具有改进空间,提出了一种以太网节点的实时改进方法.该方法允许网络中同时存在实时节点和非实时节点.分析了该方法端到端的延迟,对实时节点该延迟是有界的.介绍了用减少负荷的方法来提高节点的实时性.仿真实验表明该实时改进方法是有效的.
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| 关 键 词： | 实时 竞争信号 |
| 文章编号： | 1000-7024（2006）09-1516-05 |
| 收稿时间： | 2005-03-10 |
| 修稿时间： | 2005-03-10 |
Research on real-time improved method based on communication process of ethernet |
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| HU Li-kun,WANG Qing-chao.Research on real-time improved method based on communication process of ethernet[J].Computer Engineering and Design,2006,27(9):1516-1520. |
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| Authors: | HU Li-kun WANG Qing-chao |
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| Affiliation: | School of Astronautics, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | The ethernet's communication progress and its collision disposal were analyzed along with its some basic requirements and re-asonsof its limits.The 1-persistence CSMA/CD and theBEB algorithm could be ameliorated in real-time nodes,and an improved method was presented.The method allows real-time nodes and non-real-time nodes existing in one network.The end-to-end delay of the method was analyzed and the delay is bounded in real-time nodes.The scheme of reducing network load was also expatiated to improve the real-time performance of the network nodes.Simulation shows that the improved method is effective. |
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| Keywords: | CSMA/CD |
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