一种基于位置信息的速度加权OLSR算法

A Speed Weighted OLSR Algorithm based on LocationInformation

由小型无人机组成的无人机自组网具有易操作、快速部署、价格低廉等特点,使得它们在很多领域都广受关注。由于节点的高移动性,维持无人机之间的通信链路是一项具有挑战性的任务。这些网络的拓扑结构比移动自组织网络(MANET)更具动态性,所以MANET中的路由协议在拓扑快速变化时性能表现不佳。因此,设计实现了一种基于位置信息的速度加权OLSR算法(SW-OLSR),利用位置信息计算速度加权ETX来辅助路由决策。通过室外无人机试验和仿真实验验证了协议的可行性,且仿真实验表明,在拓扑快速变化的网络中,设计的协议性能优于OLSR协议。

UAV Ad Hoc networks(UANETs) composed of small unmanned aerial vehicles(UAVs) are easy to operate, fast to deploy, and inexpensive, making them widely concerned in many fields. Due to the high mobility of the nodes, maintaining a communication link between the UAVs is a challenging task. The topology of these networks is more dynamic than the mobile Ad Hoc networks(MANETs), so the routing protocol in MANET performs poorly when the topology changes rapidly. Therefore, a speed-weighted OLSR algorithm based on position information(SW-OLSR) is designed to calculate the speed-weighted ETX using position information to assist routing decisions. The feasibility of the protocol is verified by the outdoor UAV experiment and simulation experiment. Simulation results indicate that the designed protocol performance is better than the OLSR protocol in networks with rapidly changing topologies.