On OFDM-Based Resource Allocation in LTE Radio Management System for Unmanned Aerial Vehicles (UAVs)

Hiroki Nishiyama, Y. Kawamoto, Daisuke Takaishi
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引用次数: 8

Abstract

Unmanned aerial vehicles (UAVs) can be used for a wide variety of applications, including agriculture, infrastructure maintenance, and disaster response. In this paper, we focus on the use of UAVs for disaster response. Multiple UAVs equipped with communication terminals can be deployed to construct an airborne network connecting isolated areas. Another use is for real-time video transmission from a UAV to a ground station, using multiple UAVs operating simultaneously by different organizations, e.g., rescue teams, fire departments, broadcasting companies, and so forth. In both cases, frequency resources must be shared efficiently among adjacent UAVs. Thus, we describe a radio resource management system for UAVs. The focus of this paper is data communications, rather than the broader issue of command and control communications. First, we present experimental results from field experiments using WiFi communication terminals that do not have centralized radio resource management functionality. Then, we propose a centralized resource allocation technique that assumes an orthogonal frequency division multiplexing (OFDM)-based communication system, using resource blocks consistent with the long-term evolution (LTE) standard.
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基于ofdm的无人机LTE无线电管理系统资源分配研究
无人驾驶飞行器(uav)可用于各种各样的应用,包括农业,基础设施维护和灾害响应。在本文中,我们重点关注无人机在灾害响应中的应用。可以部署多架配备通信终端的无人机,构建连接孤立区域的机载网络。另一个用途是从一架无人机到一个地面站的实时视频传输,使用由不同组织同时操作的多架无人机,例如,救援队、消防部门、广播公司等等。在这两种情况下,频率资源必须在相邻无人机之间有效共享。因此,我们描述了一种无人机无线电资源管理系统。本文的重点是数据通信,而不是更广泛的命令和控制通信问题。首先,我们介绍了使用不具有集中无线电资源管理功能的WiFi通信终端进行的现场实验结果。然后,我们提出了一种集中的资源分配技术,该技术假设基于正交频分复用(OFDM)的通信系统,使用符合长期演进(LTE)标准的资源块。
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