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针对无人机自组网拓扑结构变化频繁与节点能量有限的特点,提出了一种具有速度与能量意识的OLSR路由协议(SEA-OLSR,Speed-Aware and Energy-Aware OLSR Routing Protocol)。SEA-OLSR综合考虑了节点的速度和能量,通过分级设置每个节点的willingness项来决定节点是否选为多点中继(MPR,Multi Point Relay)节点。OPNET仿真实验表明,SEA-OLSR较经典的OLSR路由协议,提高了网络的稳定性、延长了正常通信时间并且降低了端到端的延时。
Aiming at the frequent changes of topological structure of UAV ad hoc networks and the limited node energy, an OLSR (Speed-Aware and Energy-Aware OLSR Routing Protocol) with speed and energy awareness is proposed. The SEA-OLSR considers the node’s speed and energy, and determines whether the node is selected as the Multipoint Relay (MPR) node by grading the willingness of each node. OPNET simulation shows that SEA-OLSR is more classical OLSR routing protocol, which improves network stability, extends normal communication time and reduces end-to-end delay.