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학술지 Non-Terrestrial Networks for UAVs: Base Station Service Provisioning Schemes With Antenna Tilt
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저자
김성준, 김민수, 류종열, 이제민, Tony Q. S. Quek
발행일
202204
출처
IEEE Access, v.10, pp.41537-41550
ISSN
2169-3536
출판사
IEEE
DOI
https://dx.doi.org/10.1109/ACCESS.2022.3166241
협약과제
22HH1900, 3차원 공간 이동통신 기술 개발, 이문식
초록
By focusing on unmanned aerial vehicle (UAV) communications in non-terrestrial networks (NTNs), this paper provides a guideline on the appropriate base station (BS) service provisioning scheme with considering the antenna tilt angle of BSs. Specifically, two service provisioning schemes are considered including the inclusive-service BS (IS-BS) scheme, which makes BSs serve both ground users (GUs) and aerial users (AUs) (i.e., UAVs) simultaneously, and the exclusive-service BS (ES-BS) scheme, which has BSs for GUs and BSs for AUs. By considering the antenna tilt angle-based channel gain, we derive the network outage probability for both IS-BS and ES-BS schemes and show the existence of the optimal tilt angle that minimizes the network outage probability after analyzing the conflict impact of the antenna tilt angle. We also analyze the impact of various network parameters, including the ratio of GUs to total users and densities of total and interfering BSs, on the network outage probability. Finally, we analytically and numerically show in which environments each service provisioning scheme can be superior to the other one.
KSP 제안 키워드
Angle-based, Antenna tilt angle, Channel Gain, Network Outage, Network Parameters, Optimal tilt angle, Outage probability(OP), Service provisioning, Station Service, base station(BS), unmanned aerial vehicle
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