基于跨层链路质量状态感知的无人机地理位置路由协议  

UAV Geographic Location Routing Protocol Based on Cross Layer Link Quality State Awareness

作　　者：周雁翎 米志超 路颜霞 王海 ZHOU Yanling;MI Zhichao;LU Yanxia;WANG Hai(College of Communications Engineering,Army Engineering University of PLA,Nanjing 210007,China)

机构地区：[1]陆军工程大学通信工程学院,南京210007

出　　处：《计算机科学》2023年第10期258-265,共8页Computer Science

基　　金：国家自然科学基金(62171465)。

摘　　要：地理位置路由协议由于开销较低和可扩展性较好而在FANET网络中得到了广泛应用,但其贪婪转发过程中依据最靠近目的地的邻居节点作为中继的策略还存在一定的局限性。文中通过感知链路质量,提出了一种适用于拓扑变化频繁、网络环境拥挤的跨层链路质量状态感知的无人机地理位置路由协议(CLAQ-GPSR)。通过设立通信安全区,建立链路负载和流间干扰度量模型,采用交付比ETX衡量链路质量,结合物理层、MAC层、网络层数据综合衡量最可靠的中继节点,以提升通信质量。同时采用左右手组合转发规则,加快路径恢复中的转发速度,避免传统周边转发出现的路由循环等问题。通过网络仿真平台比对分析可知,相比传统的GPSR,W-GeoR和DGF-ETX协议,所提协议在数据包分组投递成功率、端到端时延和跳数等指标上更具优势。The geographical location routing protocol has been widely used in FANET networks due to its low overhead and good scalability.However,its strategy of relying on the nearest neighbor node as the relay in greedy forwarding process still has certain limitations.This paper proposes a cross layer link quality state aware unmanned aerial vehicle geographic location routing protocol(CLAQ-GPSR)suitable for frequently changing topology and congested network environments by sensing channel link quality.By establishing a communication security zone,establishing a measurement model for link load and inter flow interference,using delivery ratio ETX to measure link quality,and combining data from the physical layer,MAC layer,and network layer to comprehensively measure the most reliable relay nodes,communication quality can be improved.At the same time,the combination of left and right hand forwarding rules is used to accelerate the forwarding speed in path recovery and avoid routing loops and other issues that occur in traditional peripheral forwarding.Through comparative analysis on network simulation platforms,it is found that,compared with the traditional GPSR,W-GeoR,and DGF-ETX protocols,the proposed protocol has advantages in terms of packet delivery success rate,end-to-end latency,and average hop count.

关 键 词：GPSR FANET 链路质量 流间干扰 信道空闲率 左右手组合转发 

分 类 号：TN929[电子电信—通信与信息系统]