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针对传统AODV协议难以适应无人机自组网高度动态的拓扑、以最小跳数为择路标准带来链路频繁断裂及路由静态更新造成绕路的问题，提出一种具有多态感知意识的AODV-PA协议。首先，该协议在路由择路时利用跨层思想，结合能量消耗、节点稳定度、缓冲区拥塞提出链路代价，依据链路代价选择路径；其次，在路由探索阶段修改RREQ结构，利用源节点序列号和IP替代快取机制实现路由动态更新；最后，根据源节点与目的节点的位置信息提出基于扇形区域的转发策略，以减少冗余数据分组。在NS2中对多种场景和协议进行仿真对比，结果表明，动态更新机制能够有效减少绕路现象的发生，基于扇形区域的转发策略对抑制广播洪泛有较明显效果，AODV-PA协议对无人机自组网的拓扑环境具有较高的适用性。
Abstract：The traditional AODV protocol is difficult to adapt to the highly dynamic topology of flying Ad-Hoc network. An AODV protocol with polymorphic awareness(AODV-PA) was proposed to solve the problems of links break frequently and caused by the minimum hop count criterion of traditional AODV protocol and detour caused by routes static update. Firstly, according to the crosslayer design, the link cost based on energy consumption, node stability and buffer congestion were used to select route. Secondly,during the route discovery, the structure of RREQ was modified, and the cache mechanism was replaced by originator sequence number and originator IP address to realize routes dynamic update. Finally, according to the location of source node and destination node, a forwarding strategy, based on fanshaped regions, was proposed to reduce redundant packets. The simulation results of various scenarios and protocols in NS2 show that the dynamic update can effectively reduce the occurrence of detour, the forwarding strategy based on fanshaped regions has obvious effect on restraining flooding, and the improved protocol is more suitable in the topological environment of flying Ad-Hoc networks.
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基本信息:
DOI：10.16725/j.1673-808X.2021402
中图分类号:TN92;V279;V243.1
引用信息:
[1]肖菁颖,刘庆华,叶金才.一种具有多态感知意识的无人机自组网AODV协议[J].桂林电子科技大学学报,2025,45(01):76-91.DOI:10.16725/j.1673-808X.2021402.
基金信息:
广西创新驱动发展专项(桂科AA21077008)