航空高动态网络负载感知路由算法

针对航空高动态网络(HDAN,Highly Dynamic Airborne Networks)节点高速运动、拓扑结构变化频繁、飞行器轨迹时变等特性,及其所带来的数据到达率低、信息拥塞度高、稳定性差等问题,提出一种具有负载感知特性的路由算法.算法提出了新的动态路由因子度量来适应拓扑结构的变化,引入节点相对速度修正高动态环境下单纯地理位置信息所带来的误差,并通过交互邻居节点队列信息表征网络局部负载程度,降低拥塞概率.仿真实验结果表明,本算法有效减少了网络丢包率和通信时延,增强了信息传输的可靠性.

Geographic load aware routing algorithm for highly dynamic airborne networks

Due to the high mobility of the aerial vehicle nodes, dynamic changes of the topology structure and the time-varying node trajectories, highly dynamic airborne networks (HDAN) suffer problems such as low data delivery ratio, high data congestion potential and poor stability. In order to address these problems, a geographic load aware routing algorithm was presented. This proposed algorithm defines a new dynamic routing metric for the next hop selection, which is adaptive to the topology changes, and it also introduces relative velocity, which is intended to amend errors caused by simply considering geographic information. The algorithm also reduces the congestion ratio of the network, according to the queue information exchange between the neighbors which is used to indicate local load level. The simulations show that the proposed routing algorithm is capable of reducing both end-to-end delay and the probability of delivery loss, therefore it enhances the reliability of the data transmission.