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计算机工程 ›› 2007, Vol. 33 ›› Issue (10): 98-100. doi: 10.3969/j.issn.1000-3428.2007.10.035

• 网络与通信 • 上一篇    下一篇

交替活跃模式网络数据转发调节机制

张天乐1,2,李忠诚1,刘 敏1,2,张永良3   

  1. (1. 中国科学院计算技术研究所信息网络室,北京 100080;2. 中国科学院研究生院,北京 100039; 3. 山东农业大学水利土木工程学院,泰安 271018)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-05-20 发布日期:2007-05-20

Forwarding Adjustment of Network in Alternate Activity Mode

ZHANG Tianle1,2, LI Zhongcheng1, LIU Min1,2, ZHANG Yongliang3   

  1. (1. Institute of Information Network, Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100080; 2. Graduate School, Chinese Academy of Sciences, Beijing 100039; 3. Water Conservancy and Civil Engineering College, Shandong Agricultural University, Taian 271018)
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-05-20 Published:2007-05-20

摘要: 提出了适用于具有交替活跃模式的部分连接网络的数据转发调节机制。延迟转发对于部分连接的网络是适用的,给出了延迟转发方式中的等待时间估计方法,通过基于状态机的自适应发送窗口调节方法,根据邻居的交替特征预测节点维持活跃状态的概率,调整转发包的速率,有效地减少了由于节点状态交替变化导致的丢包现象。网络仿真结果表明,该方法能够显著提高包递交率,并降低端到端延迟。

关键词: 部分连接网络, 状态机, 窗口, 包递交率, 仿真

Abstract: This paper proposes a scheme of forwarding in partially connected network based on alternate activity mode. Delay of forward is suitable for partially connected network. An evaluation of delay period is given. A self-adjustment scheme based on state machine is introduced. By tuning the size of forward window according to the evaluation of activity of neighbors, packet loss is reduced. Simulation shows that this method can increase the packet delivery ratio and reduce the end-to-end delay.

Key words: Partially connected networks, State machine, Window, Packet delivery ratio, Simulation

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