应急场景无人机自组网部分重叠信道动态分配方法  

Partially Overlapping Channels Dynamic Allocation Method for UAV Ad-hoc Networks in Emergency Scenario

作　　者：王博文[1,2] 郑建 孙彦景 胡文信 聂同 王晶晶 WANG Bowen;ZHENG Jian;SUN Yanjing;HU Wenxin;NIE Tong;WANG Jingjing(IoT Perception Mine Research Center,China University of Mining and Technology,Xuzhou 221008,China;School of Information and Control Engineering,China University of Mining and Technology,Xuzhou 221008,China)

机构地区：[1]中国矿业大学物联网(感知矿山)研究中心,徐州221008 [2]中国矿业大学信息与控制工程学院,徐州221008

出　　处：《电子与信息学报》2024年第12期4373-4382,共10页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(62101556)。

摘　　要：飞行自组网(FANETs)因具有高机动、自组织等特点,被广泛应用于应急救援场景。在应急场景中,大量用户寻呼请求造成局部流量激增与有限频谱资源之间产生难以协调的矛盾,FANET中面临严重的信道干扰问题,亟需将频谱利用率高的部分重叠信道(POCs)扩展到应急场景中。然而,POCs的邻信道特性,导致干扰复杂难以刻画。因此,该文研究了FANET部分重叠信道分配方法,通过几何预测重构时变干扰图和无干扰最小信道间隔矩阵刻画POCs干扰模型,在此基础上提出一种基于上界置信区间的POCs动态分配算法(UCB-DAL),通过分布式决策求解近似最优信道分配方案。仿真结果表明,该算法实现了网络干扰和信道切换次数之间性能折中,具有较好的收敛性能。The Flying Ad-hoc NETworks(FANETs)are widely used in emergency rescue scenarios due to their high mobility and self-organization advantages.In emergency scenarios,a large number of user paging requests lead to a challenging coordination between the surge in local traffic and the limited spectrum resources,significant channel interference issues in FANETs are resulted from.There is an urgent need to extend the high spectrum utilization advantage of Partially Overlapping Channels(POCs)to emergency scenarios.However,the adjacent channel characteristics of POCs leads to complex interference that is difficult to characterize.Therefore,partial overlapping channel allocation methods in FANETs are studied in this paper.By utilizing geometric prediction to reconstruct time-varying interference graphs and characterizing the POCs interference model with the interference-free minimum channel spacing matrix,a Dynamic Channel Allocation algorithm for POCs based on Upper Confidence Bounds(UCB-DCA)is proposed.This algorithm aims to solve for an approximately optimal channel allocation scheme through distributed decision-making.Simulation results demonstrate that the algorithm achieves a trade-off between network interference and channel switching times,and has good convergence performance.

关 键 词：应急通信网络 无人机自组网 资源分配 部分重叠信道 

分 类 号：TN929.5[电子电信—通信与信息系统]