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。
The ethemet＇s communication progress and its collision disposal were analyzed along with its some basic requirements and reasons of its limits. The 1-persistence CSMA/CD and the BEB 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.
出处
《计算机工程与设计》
CSCD
北大核心
2006年第9期1516-1520,共5页
Computer Engineering and Design
基金
国家自然科学基金项目(60274002)
