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Communication Scheduling with Diversity for Unmanned Aircraft Systems Using Local 5G

Journal of Communications and Information Networks 2020年第1期5卷 50-61页

作者： Takeru Kitagawa Yuichi Kawamoto nei kato Graduate School of Information Sciences Tohoku University Aramaki-Aoba 6-3-09Aoba-kuSendai980-8579Japan

The use of unmanned aircraft systems(UAS)for critical public service missions by public organizations,local governments,and social users is *** radio transmission by unmanned aerial vehicles(UAVs)is indispensable in these *** of the standards suitable for UAV wireless communications is local ***,to introduce local 5G into a UAS,several problems specific to UASes must be *** include the deterioration of the signal-to-noise ratio due to topography and obstacles,the uncertainty of the communication environment due to the movement of multiple UAVs,and the limitation of the frequency *** address these problems and to introduce local 5G into the UAS,we propose a novel communication scheduling *** method incorporates transmission modes with *** evaluations shows that total data volumes increase by 1.9~3 times with the proposed scheduling method compared with transmission without diversity or efficient scheduling.

关键词： unmanned aircraft system(UAS) unmanned aerial vehicle(UAV) local 5G diversity scheduling LTE sidelink time division multiple access(TDMA)

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GUEST EDITORIAL

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China Communications 2017年第1期14卷 18-19页

作者： Supeng Leng Yan Zhang nei kato the School of Communication and Information Engineering University of Electronic Science and Technology of ChinaChina the Department of Informatics University of OsloNorway 不详

The IEEE/CIC International Conference on Communication in China（ICCC）has been globally recognized as one of the important annual international conference held by the IEEE Communication Society（Com Soc）and China In... 详细信息

关键词： globally fifth users desired distinguished carefully authority permission Chengdu maximize

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Benefit of Selecting Number of Active Mesh Routers in Disaster Oriented Wireless Mesh Network

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Journal of Software Engineering and Applications 2012年第12期5卷 36-41页

作者： Panu Avakul Hiroki Nishiyama nei kato Yoshitaka Shimizu Tomoaki Kumagai Graduate School of Information Sciences Tohoku UniversitySendai Japan 2NTT Network Innovation Laboratories NTT Corporation Yokosuka Japan

Communications is one of the most critical factors in disaster recovery process. However, after a major disaster, existing communications infrastructures may be heavily damaged or even completely unusable. It is necessary that communicationsare to be promptly restored to the disaster area, which is the goal of our national project. The project aims to build three tiers wireless mesh network from remaining wireless access points in order to provide communications services to the disaster area. This work introduces a unique multiple tiers wireless mesh network project. In addition, this work also illustrates merits in optimizing the number of mesh routersin order to achieve the optimum performance by presenting both theoretical and simulation results of a specific scenario of multiple tiers wireless mesh network.

关键词： Wireless Mesh Network Throughput Interference Collision WiFi

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