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An Unmanned Aerial Vehicle Flight Formation for Enhanced emergency communication Based on Conformal Antenna Design

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Journal of communications and Information Networks 2020年第3期5卷 294-301页

作者： Qianyun Zhang Xiaoqian Ren Li Gong Lei Cheng Yue Gao The School of Cyber Science and Technology Beihang UniversityBeijing 100191China National Time Service Center China Academy of ScienceXi’an 710600China Beijing Aerospace Guanghua Electronics Technologies Co. Ltd.Beijing 100091China Shenzhen Research Institute of Big Data Shenzhen 518000China University of Surrey GU27XHU.K. Peng Cheng Laboratory Shenzhen 518000China

Benefiting from the inherent superiorities in flexibility and mobility,the use of unmanned aerial vehicles(UAVs)as flying base stations for wireless coverage has been of significant interest,especially for rescue *** work concerns the reliable emergency communication based on commercial micro-sized UAVs due to their high availability and low *** decrease the weight overloads and to improve the power efficiency,a UAV body conformal and omnidirectional antenna is first presented based on the characteristic mode *** extend the wireless coverage and to improve the communication quality of the UAV network,a UAV flight formation is then proposed and *** addition,the propagation analyses for the proposed UAV transmitter designs are performed in a realistic hilly canyon *** and comparisons are presented to demonstrate the effectiveness of the proposed designs in emergency communications and performance enhancement through the UAV flight formation.

关键词： emergency communication micro UAV UAV flight formation conformal antenna

Evolutionary PSO-based emergency monitoring geospatial edge service chain in the emergency communication network

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International Journal of Digital Earth 2023年第1期16卷 2797-2817页

作者： Sheng He Xicheng Tan Yanfei Zhong Meng Huang Zhiyuan Mei You Wan Huaming Wang School of Remote Sensing and Information Engineering Wuhan UniversityWuhanPeople’s Republic of China The State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan UniversityWuhanPeople’s Republic of China School of Resource and Environmental Sciences Wuhan UniversityWuhanPeople’s Republic of China

emergency communication networks play a vital role in disaster monitoring,transmission,and application during disaster emergency response(DER),however,the performance and stability of edge nodes in the emergency communication networks are often weak due to limited communication and computation *** weakness directly affects the quality,of service(Qos)of the geospatial edge service(GES)chains involved in emergency *** research predominantly addresses service compositions in stable environments,neglecting the aggregation of efficient and robust GES chains in emergency communication *** study proposes an evolutionary_particie swarm optimization(EPSO)-based emergency monitoring GES chain in an_emergency communication *** includes a GES chain model of emergency environment monitoring for tailing areas,as well as the designs of the particle chromosome encoding method,fitness evaluation model,and particle chromosome swarm update operators of the EPSO-based GES ***,the study conducts emergency environment monitoring experiments for tailing areas using the proposed *** results demonstrate that the proposed method significantly enhances the efficiency,stability,and reliability of emergency monitoring GEs chains in the emergency communication *** is crucial to providing fast and reliable services for DER during natural disasters.

关键词： Edge computing emergency communication emergency monitoring evolutionary computation geospatiai service chain Pso

communication Mechanism and Algorithm of Composite Location Analysis of emergency communication based on Rail

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Computers, Materials & Continua 2018年第11期57卷 321-340页

作者： Yong Jiang Xiaolin Zhong Yong Guo Meixia Duan College of geophysics Chengdu University of TechnologyChengdu610059China College of Information Engineering North China University of Water Resources and Electric PowerZhengzhou450045China

The emergency communication system based on rail is an unconventional emergency communication mode,it is a complement equipment for that conventional communication system can’t work while tunnel mine accident *** of transmission channel is the widely existing rail in the *** this paper we analyzed the characteristics of the rail transmission channel,verified the feasibility that information is transmitted by vibration signal in rail,we proposed the realization plan of the *** protocol and processing mechanism suitable for rail transmission are designed according to the characteristics of channel bandwidth and low data *** communication with low bit rate and low bit error is realized in the communication simulation *** the simplified model,we realized to transmit recognition speech information,and the error rate of the key text information is low to *** most concerned problem of personnel location in the mine disaster rescue is proposed,the composite algorithm is based on the model of signal amplitude attenuation,key node information and data frame transmission *** information of hitting point can be achieved within the simplified model of the ***,we discuss the characteristics of vibration signals passing through different channels.

关键词： emergency communication elastic wave attenuation composite locating algorithm rfc2544.

UAV-Aided Networks for emergency communications in Areas with Unevenly Distributed Users

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Journal of communications and Information Networks 2018年第4期3卷 23-32页

作者： Gaozhao Peng Yongxiang Xia Xuejun Zhang Lin Bai College of Information Science and Electronic Engineering Zhejiang UniversityHangzhou 310027China School of Electronic and Information Engineer-ing Beihang UniversityBeijing 100191China

Nowadays,daily human life is closely intertwined with various *** natural disasters or malicious attacks break out,the failure of communication infrastructure due to direct destruction or indirect impact tends to cause a massive outage of *** communication networks play a significant role in rescue ***,a flexible and efficient solution has been provided for emergency communications using unmanned aerial vehicles(UAVs).By means of their excellent characteristics,UAVs,serving as aerial base stations(ABSs),can be rapidly deployed to temporarily rebuild a damaged communication network to restore the users’*** this study,we investigate the use of UAVs as ABSs for an emergency communication scene where user equipment is unevenly distributed and the communication infrastructure has completely failed due to a severe *** communication probability(ECP),which integrates throughput coverage and connectivity,is used to evaluate the performance of a communication *** simulations,we analyze communication improvements that can be obtained by the flexible deployment of *** results show a noticeable increase in ECP when some ABSs are deployed in optimal locations.

关键词： emergency communication UAV coverage connectivity communication network

Hybrid Satellite-Aerial-Terrestrial Networks in emergency Scenarios:A Survey

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China communications 2017年第7期14卷 204-216页

作者： Ying Wang Yichun Xu Yuan Zhang Ping Zhang State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications

Natural disaster or large-scale unexpected events easily make the terrestrial network overloaded,paralyzed, or totally destroyed. It is highly demanded to build an emergency network which can be deployed rapidly, offer high data rate and wide coverage. The emergence of aerial platforms especially the low altitude platforms(LAPs) indicates a stable and reliable direction for the development of emergency network. Hybrid satellite-aerial-terrestrial(HSAT) networks have the ability to provide effective services rather than traditional infrastructures during the emergency situation. In this paper, the aerial platforms and the HSAT networks are surveyed and the key technologies are discussed from several aspects. The challenges of the HSAT networks are also outlined finally.

关键词： emergency communication aerial platforms hybrid satellite-aerial-terrestrial networks

Deployment of Drone Base Stations for Cellular communication Without Apriori User Distribution Information

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Deployment of Drone Base Stations for Cellular Communication...