移动边缘网络环境中的数据同步方法

Data Synchronization Methods for Mobile Edge Network

为了解决带宽受限的移动边缘网络环境中,节点间数据同步网络开销大、同步成功率低等问题,利用边缘节点的计算与存储能力,设计了一种面向移动边缘自组织网络的边缘数据同步方法。通过同步节点分区域的方式构建同步传输框架,采用双队列方法将高实时性和低实时性的业务数据以不同队列进行同步,并基于时延容忍网络思想,对低实时性队列中的数据同步业务提出“存储-携带-转发”的机会式同步方法来降低网络开销,以提升同步效率。实验结果表明,所提出的数据同步方法相较传统方法在同步成功率方面有较大的提升,并具有较低的网络开销和同步时延。

In order to solve the problems of high network overhead and low synchronization success rate of inter-node data synchronization under the bandwidth-limited mobile edge network environments, an edge data synchronization method for mobile edge ad hoc network is designed by utilizing the computing and storage capabilities of edge nodes. Specifically, a synchronous transmission framework was constructed by dividing the synchronization nodes into different areas, and a double-queue method is designed to synchronize the high real-time and low real-time service data in different queues. Furthermore, inspired by the idea of delay-tolerant network, an opportunistic synchronization method with the "storecarry-forward" mechanism is proposed for synchronizing the service data in the low real-time queues for network overhead reduction and synchronization efficiency improvement. The experimental results showed that the proposed data synchronization method has a great improvement in synchronization success rate compared with the traditional methods, and also has lower network overhead and synchronization delay.