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Proceedings ArticleDOI

Altitude and Power Optimization for Coexisting Aerial and Terrestrial Base Stations.

TLDR
This paper studies a wireless communication system with coexisting aerial and terrestrial base stations, which respectively serve their associated users and examines the impact of the aerial base station (ABS) altitude and transmit power on the system’s downlink and uplink data rates.
Abstract
The wireless communication field is getting closer to the integration of the unmanned aerial vehicle (UAV) and cellular network for further enhanced service quality. In this paper, we study a wireless communication system with coexisting aerial and terrestrial base stations, which respectively serve their associated users. By taking into account the mutual interference between the aerial and terrestrial communication links, we study the impact of the aerial base station (ABS) altitude and transmit power on the system's downlink and uplink data rates. In many situations, the results show that the optimal ABS altitude and transmit power are either the maximum or the minimum possible values depending on, for instance, the relative proximity between the ABS, the ABS user (AU), and the terrestrial base station user (TU).

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Joint Trajectory and Resource Allocation Design for UAV Communication Systems

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Proceedings ArticleDOI

Interference Analysis Method for 5G System to Radio Altimeter

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Proceedings ArticleDOI

Interference Analysis Method for 5G System to Radio Altimeter

TL;DR: In this article , the causes of interference of aircraft radio altimeter with 5G radio network frequencies were analyzed and the status and difficulties of the risk assessment of RA system by 5G interference were clarified.
References
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Journal ArticleDOI

Energy-Efficient UAV Communication With Trajectory Optimization

TL;DR: In this article, a new design paradigm that jointly considers both the communication throughput and the UAV's energy consumption was proposed to maximize the energy efficiency of UAV communications with a ground terminal.
Journal ArticleDOI

Unmanned Aerial Vehicle With Underlaid Device-to-Device Communications: Performance and Tradeoffs

TL;DR: In this article, a tractable analytical framework for the coverage and rate analysis is derived for the deployment of an unmanned aerial vehicle (UAV) as a flying base station used to provide the fly wireless communications to a given geographical area is analyzed.
Journal ArticleDOI

Throughput Maximization for UAV-Enabled Mobile Relaying Systems

TL;DR: Numerical results show that by optimizing the trajectory of the relay and power allocations adaptive to its induced channel variation, mobile relaying is able to achieve significant throughput gains over the conventional static relaying.
Journal ArticleDOI

Survey on Unmanned Aerial Vehicle Networks for Civil Applications: A Communications Viewpoint

TL;DR: This survey reports the characteristics and requirements of UAV networks for envisioned civil applications over the period 2000-2015 from a communications and networking viewpoint and elaborate on general networking related requirements such as connectivity, adaptability, safety, privacy, security, and scalability.
Journal ArticleDOI

Efficient Deployment of Multiple Unmanned Aerial Vehicles for Optimal Wireless Coverage

TL;DR: The results show that, in order to mitigate interference, the altitude of the UAVs must be properly adjusted based on the beamwidth of the directional antenna as well as coverage requirements.
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