航空自组网中面向容错的中继节点速度控制  

Relay speed control for realization of fault-tolerant aeronautical ad hoc networks

作　　者：李杰[1] 宫二玲[1] 孙志强[1] 刘伟[1] 谢红卫[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,湖南长沙410073

出　　处：《国防科技大学学报》2015年第4期158-164,共7页Journal of National University of Defense Technology

摘　　要：由于飞机节点的通信距离有限,航空自组网的网络拓扑高动态的变化会导致频繁的网络分割并严重影响网络上层应用的正常运行。为了保证飞机节点之间端到端的连通性不受影响,航空自组网必须具备容错性,即任意一个节点或链路失效后网络仍然连通。通常情况下飞机节点的运动不可控,因此可在网络中加入一定数量的中继节点,通过控制中继节点的运动速度来实现并维持航空自组网的容错性。提出了一种在线中继节点速度控制方法,该方法根据网络当前状态计算出中继节点的最佳运动方式,在保证网络容错的前提下使得中继节点在网络运行时间内所运动的总路程最短。仿真结果表明该中继节点速度控制方法在航空自组网的容错控制方面具有潜在的应用前景。Due to the limited transmission range of airborne nodes, aeronautical ad hoe network suffers from frequent network partitioning in the highly-dynamic environment, which may affect the operation of network applications. In order to guarantee end-to-and connectivity, aeronautical ad hoe network should have the ability of fault-tolerance against link or node failures. Therefore, one or more relay nodes are required for constructing such a fault-tolerant network. As airborne nodes move, relay nodes need to move as well in order to re-establish the topology as quickly as possible. An online algorithm is proposed for relay nodes＇ speed control to realize the network fanlt-tolerant during running time. Based on the network＇ s actual state, the online algorithm calculates relay nodes＇ velocities such that the network can keep fault-tolerance and relay nodes, can travel a short total distance during the running time. Simulations demonstrate that the proposed algorithm is of great potential to be applied to aeronautical ad hoe networks.

关 键 词：自组织网络 容错设计 网络连通性 速度控制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]