Geometrically Nonlinear Analysis for Elastic Beam Using Point Interpolation Meshless Method by Cheng He, Xinhai Wu, Tao Wang, Huan He

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Monitoring of green areas in the University of Guadalajara through image processing in an HPC environment by Martín Pizano-Moreno, Jaime Ibarra-Nuño, Verónica Lizette Robles-Dueñas

“…This work proposes the use of drones or Unmanned Aerial Vehicle (UAV) to make these vegetation inventory and process the acquired images using the photogrammetry software OpenDroneMap (ODM) in a high performance computer under Singularity and Snakemake. …”
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Application of Improved YOLOv5 Algorithm in UAV Patrol Inspection of Datengxia Water Conservancy Project by GUAN Jixiang, GUAN Shifeng

“…This paper introduced the application of an improved YOLOv5 algorithm in unmanned aerial vehicle (UAV) patrol inspection of the Datengxia Water Conservancy Project.First,the paper introduced the basic principles and characteristics of the YOLOv5 algorithm and then discussed the improvements to the traditional YOLOv5 algorithm.Subsequently,this paper analyzed the application and advantages of the improved YOLOv5 algorithm in the UAV patrol inspection of the Datengxia Water Conservancy Project,including precision,recall,and mAP.Finally,this paper pointed out the application of the YOLOv5 algorithm in the UAV patrol inspection of the Datengxia Water Conservancy Project and proposed feasible improvement schemes.…”
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Algorithm for intelligent collaborative target search and trajectory planning of MAV/UAV by Zhuo LU, Qihui WU, Fuhui ZHOU

“…Based on the manned aerial vehicle (MAV) / unmanned aerial vehicle (UAV) intelligent cooperation platform, the search of multiple interfered signal sources with unknown locations and trajectory planning were studied.Considering the real-time and dynamic nature of the search process, a MAV/UAV intelligent collaborative target search and trajectory planning (MUICTSTP) algorithm based on multi-agent deep reinforcement learning (MADRL) was proposed.Each UAV made online decision on trajectory planning by sensing the received interference signal strength (RISS) values, and then transmitted the sensing information and decision-making actions to the MAV to obtain the global evaluation.The simulation results show that the proposed algorithm exhibits better performance in long-term RISS, collision, and other aspects compared to other algorithms, and the learning strategy is better.…”
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Airworthiness analysis of low earth orbit satellite communication technology for UAV application by Yaoyu HE, Chao ZHANG

“…With the rapid development of unmanned aerial vehicle (UAV) and low earth orbit (LEO) satellite technology, the integrated network consisted of the space, air, ground and sea has promoted the wide development of Internet of remote things (IoRT) on the UAV platform.Confronting the application demand of UAV with LEO satellite, the corresponding flight safety of UAV needs to be considered firstly, and the airworthiness of UAV has become the top priority of the technical application.The significance of the airworthiness of the UAV system was introduced and the technology of LEO satellite with UAV was summarized.Moreover, the related airworthiness programs of UAV equipped with LEO communications system were proposed.Meanwhile, based on the comprehensive analysis of UAV oriented LEO satellite technology, the means of compliance (MOC) on the airworthiness theory has been carried out.…”
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Joint optimization of trajectory and resource allocation for UAV integrated radar and communication system by Shaoshuai FAN, Yufei WANG, Hui TIAN, Jie Zhang, Jinxin SHI

“…For the flexible and efficient area detection and data transmission tasks, the joint optimization of time resource allocation, power resource allocation and the trajectory for UAV (unmanned aerial vehicle) trajectory for airborne IRCS (integrated radar and communication system) was studied in a TDM (time division multiplexing) manner, in order to maximize the total weighted capacity of the system’s radar detection link and communication transmission link.To solve the non-convex optimization problem, the BCD (block coordinate descent) and the SCP (successive convex programming) techniques were adopted to iteratively optimize the time resource allocation, power resource allocation and UAV trajectory.The simulation results demonstrate that the proposed method can obtain a convergent solution, and can effectively improve the capacity of the system.…”
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Modeling and simulation of the non-stationary fading channels under fast time-variant environment by Boyu HUA, Qiuming ZHU, Xiaoxiang HE, Kai MAO

“…For solving the problem of non-stationary features in rapid time-varying scenarios,such as high-speed railway,unmanned aerial vehicle and V2X communication,an improved simulation method for non-stationary fading channels was proposed.Introducing the integral items and random offset,this method can revive non-stationary channels under time-variant scattering scenarios and ensure a smooth transition between two adjacent channel states.Numerical simulations show that simulated statistical properties,such as,the probability density function,auto-correlation function,and Doppler power spectral density have good agreements with the theoretical ones.Thus,this method can be applied for wireless channel modeling and communication system evaluation of future high-speed mobile scenarios.…”
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Development of a multi-object tracking algorithm with untrained features of object matching by V.A. Gorbachev, V.F. Kalugin

“…The article is devoted to a task of multiple object tracking on video footage received from an unmanned aerial vehicle. Unlike a static camera platform, the mobile platform causes an accidental camera movement, which leads to sudden changes in the position, angle and scale of objects. …”
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Potential and methods of wireless communications for Internet of things based on UAV by Qingheng SONG, Fuchun ZHENG

“…In the absence of terrestrial infrastructure for Internet of things (IoT),an effective low-cost wireless connection can be provided by an unmanned aerial vehicle (UAV) based wireless communication platform.Compared with the terrestrial IoT communication platform,the low-altitude UAV wireless communication system enjoys the advantage of rapid deployment,low cost,on-demand deployment,flexible configuration and better communication channel quality due to short-range line-of-sight links.On the other hand,several new challenges must be overcome due to the high mobility and energy consumption limitations of UAV.An overview of UAV enabled IoT wireless communication was provided,including the air-to-ground channel model,the power consumption model,as well as the applications in UAV based data dissemination/collection and relay,with particular reference to the new opportunities and solutions in these application areas.…”
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Interconnection and coexistence of heterogeneous network:requirements, challenges, and architecture by Hongbin LUO, Shan ZHANG, Zhiyuan WANG

“…With the rapid development of the network technology and applications, many networks with different types of topologies and services have been emerging, such as Internet, satellite Internet, industrial Internet, unmanned aerial vehicle swarm network, and vehicle Internet, forming a situation in which many differentiated network systems coexist, to this end, the requirements and challenges were elaborated for heterogeneous networks to be integrated and coexist.Then CoLoR, an architecture for securely and efficiently interconnect heterogeneous networks was introduced.Based on the consistent function (i.e., information transmission) among heterogeneous network systems, CoLoR introduces multi-dimensional namespace for the universal representation.Moreover, CoLoR decouples the intra-domain routing and the inter-domain routing to ensure the evolution ability.Finally, CoLoR also constructs an efficient cross-domain communication mode and a security guarantee mechanism.…”
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Control method to prevent malicious UAV intrusion into electricity inspection area by Peng WANG, Xiaolong HAO, Yaokang ZHU, Guang YANG, Yang CUI, Qiwei PENG, Daojing HE

“…In recent years,the exploitation and deployment of UAV (unmanned aerial vehicle) has grown rapidly.The number of UAV is increasing and it is becoming more and more important in many areas.For example,the power inspection method has be upgraded from the original manual inspection to unmanned intelligent inspection.However,malicious UAV intrude on the power patrol work area and also bring about safety problems to the power plant's production.Because the electronic fence technology (geo-fencing) lacks the real time and flexibility when it controls the UAV,a novel control method to prevent malicious UAV from invading the power inspection area is proposed.The experimental results demonstrate the effectivity of our proposed method.…”
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UAV-assisted MEC systems: architecture, key technology, and future challenges by Tiankui ZHANG, Yu XU, Yuanwei LIU, Dingcheng YANG, Yuanhong REN

“…With the fast deployment of 5G and the on-going development of 6G, unmanned aerial vehicle (UAV)-assisted mobile edge computing (MEC) technology has significant advantages in the terms of overcoming the geographic restrictions, addressing the computational requirements of terminal devices, and enhancing the task offloading rate of the systems, which attracts wide attentions in academia and industry.The concept and the technique advantages of the UAV-assisted MEC systems were firstly clarified, and a general UAV-assisted MEC architecture was proposed, along with the definition of each function module.Then the classic application scenarios were summarized, and the existing key techniques were sorted out, based on which the design methods for the UAV-assisted MEC were achieved.Finally, the research directions and the potential challenges in the future were prospected and clarified.…”
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Resource optimization for UAV relay networks based on physical-layer network coding by Junyi YANG, Bo LI, Qinyu ZHANG

“…To solve the problem of low resource utilization of the traditional two-way communication network with unmanned aerial vehicle (UAV) as relays, a resource optimization algorithm based on physical-layer network coding was proposed.Considering the transmission power constraints of the UAV relay communication network, the maximum speed constraints of the UAV and the synchronization requirements of the physical-layer network coding, a resource allocation model for joint optimization of transmission power and UAV trajectory design was formulated to minimize the system outage probability.By decoupling the original non-convex problem into two sub-problems, an iterative algorithm was proposed to realize the joint implementation of optimal trajectory design and optimal system power distribution based on the Karush-Kuhn-Tucker (KKT) conditions, Lagrangian duality method and subgradient method.Simulation results show that the proposed algorithm can significantly improve the system performance and reduce the possibility of communication interruption.…”
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Relay-Assisted Aerial Communication over a Single-Shadowed Communication Channel by Haider Mehdi, Zakir Hussain, Syed Areeb Ahmed, Syed Muhammad Atif Saleem

“…This paper discusses amplify-and-forward relay-assisted air-to-ground unmanned aerial vehicle communication over a recently proposed single-shadowing-based composite fading scenario. …”
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Research on Detection Technology for Breakwater Structures Based on Multi-sensor Information Fusion by LIN Xiaobin, YANG Zhimin

“…With the rapid development of port facilities,the safety and stability of port wading projects have attracted increasingly more attention in recent years.Under the influences of waves and typhoons on port breakwaters,the abovewater structures of breakwaters are damaged,and the underwater ones are subject to structural fractures,damage,and deformation.To address the problem,this paper proposes a method characterized by data fusion and a principle of multi-sensor integration of unmanned aerial vehicle (UAV) lidar system,SeaBat T50-P multibeam echosounder,GPS RTK,and BV5000-1350 three-dimensional scanning sonar measurement system.A feasibility study of the method is then carried out.The test shows that through data fusion,this method achieves complementary advantages and obtains more detailed and accurate data.The proposed method provides reliable technical support for the detection of port breakwaters and other underwater facilities at ports.…”
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Analysis on 5G XR and enhancement on media service by Xiaonan SHI, Chunshan XIONG, Hui NI, Dan WANG

“…5G XR and enhancement on media service are very important business scenarios in 5G-Advanced network.With the increasing user demands for emerging new media services, 5G network needs to make corresponding enhancements for media services such as XR.The main business scenarios of XR and augmented multimedia were mainly introduced, including immersive virtual reality, augmented reality, remote control technology based on mixed reality, virtual factory, remote unmanned aerial vehicle control, etc.For the typical business scenarios of XR, there were already some specifications and on-going studies in 3GPP.Based on these existing activities, 5G network need further enhancements including 5G QoS framework for XR service, coordination between network and application, synchronization of flows of multi-user and multi-stream, power saving of terminals and network etc., so that the 5G network could provide better support to 5G XR and enhanced media services leveraging the above enablers.…”
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Use of ammunition with programmable blasting time in air-defense complex by В.В. Воїнов

“…The rapid spread and wide availability of unmanned aerial vehicle technologies creates a new type of airborne threat - massive and cheap strike and reconnaissance drones. …”
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6G oriented wireless communication channel characteristics analysis and modeling by Chengxiang WANG, Jie HUANG, Haiming WANG, Xiqi GAO, Xiaohu YOU, Yang HAO

“…,global coverage,all spectrums and all applications,we comprehensively survey 6G related wireless channel measurements,channel characteristics,and channel models for all frequency bands and all scenarios.Millimeter wave (mmWave),terahertz (THz),optical band,satellite,unmanned aerial vehicle (UAV),maritime,underwater acoustic,high-speed train (HST),vehicle-to-vehicle (V2V),massive/ultra-massive multiple-input multiple-output (MIMO),orbital angular momentum (OAM),and industry Internet of things (IoT) communication channels were particularly investigated.The related 6G channel measurement and modeling results were also given.Finally,future research challenges on 6G channel measurements and modeling were pointed out.…”
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Research on power efficient autonomous UAV navigation algorithm: an edge intelligence driven approach by Chunmin LIN, Liekang ZENG, Xu CHEN

“…Autonomous drone navigation has received growing attention in the recent community.Compared with traditional navigation approaches which rely on location-based services highly, deep learning based visual methods have showed superior performance in self-adaption and generalization, which are a promising solution for autonomous navigation.Running the resource-hungry deep learning execution in the resource-constrained unmanned aerial vehicle (UAV), however, significant challenges were presented in power efficiency.To tackle this challenge, following the idea of edge intelligence, a deep reinforcement learning approach was introduced to dynamically configure the computational scale of the deep learning model on UAV and hence realize the autonomous navigation with low latency and high energy efficiency.Evaluations based on both simulation and real prototype experiments show that the proposed approach has the less energy consumption, longer navigation trail and higher obstacle avoidance rate.…”
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Interference-aware node access scheme in UAV-aided VANET by Xiying FAN, Chuanhe HUANG, Junyu ZHU, Shaojie WEN

“…In vehicular Ad Hoc network (VANET),frequent link handovers and channel interference can lead to increased transmission delay and decreased network throughput.To address the issues,unmanned aerial vehicle (UAV) were introduced to cooperate with vehicles and construct UAV-assisted air-ground integrated VANET.An interference-aware node access scheme was proposed.The node access problem was formulated as a multi-objective optimization problem considering link transmission rate,link handovers and transmit power.Then the optimization problem was decomposed into two convex optimization sub-problems by dual decomposition method,the sub-problem jointly optimizes handovers and link transmission rate while the sub-problem optimizes the transmit power based on link reliability.Finally,simulation results show that the proposed mechanism can effectively improve data delivery ratio,average end-to-end delay and network throughput.…”
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