首页> 外文会议>International Conference on Ubiquitous and Future Networks >A mobility-aware approach for maintaining data consistency in unstructured mobile P2P systems
【24h】

A mobility-aware approach for maintaining data consistency in unstructured mobile P2P systems

机译:一种移动性感知方法,用于维护非结构化移动P2P系统中的数据一致性

获取原文

摘要

In unstructured mobile peer-to-peer systems (MP2P), the frequent link breakages lead frequent topology mismatching problems and data transmission failures due to high mobility of nodes. The overhead of data transmission and synchronization cannot be neglected. In order to keep the data consistent, flooding is a fundamental and straightforward data synchronization mechanism since a mobile node doesn't know which else has the same shared data item. However, data flooding causes the broadcast storm problem. In this paper, we propose a mobility-aware data update approach (MADU) to improve the data dissemination and to reduce the overhead of maintaining the consistency of shared data items in an MP2P network. We use safe-time which is derived from the neighbor's location and speed to determine the time for a node to do the checking and updating between the neighbor nodes and itself. We also consider the mobile nodes connectivity and access frequency of a data item as the factors to trigger the update process. By combining the mobility information of nodes, network connectivity, and access frequency of data items, we set a reasonable data update mechanism, which can significantly decrease the number of retransmissions and redundant messages so as to reduce the overhead of maintaining the data consistency.
机译:在非结构化的移动点对点系统(MP2P)中,由于节点的高迁移率,频繁的链路断开频繁拓扑错配问题和数据传输故障。数据传输和同步的开销不能忽略。为了保持数据一致,洪水是一种基本和简单的数据同步机制,因为移动节点不知道其它具有相同的共享数据项。但是,数据泛滥导致广播风暴问题。在本文中,我们提出了移动性感知数据更新方法(MADU)来改进数据传播,并减少维护MP2P网络中共享数据项的一致性的开销。我们使用源自邻居位置和速度的安全时间来确定节点在邻居节点和自身之间进行检查和更新的时间。我们还考虑移动节点连接和访问数据项的访问频率作为触发更新过程的因素。通过组合节点的移动性信息,网络连接和数据项的接入频率,我们设置了合理的数据更新机制,这可以显着降低重传和冗余消息的数量,以减少维护数据一致性的开销。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号