Aerial Coverage Analysis of Cellular Systems at LTE and mmWave Frequencies Using 3D City Models
| Autor: | Sofie Pollin, Achiel Colpaert, Evgenii Vinogradov |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Beamforming
mmWave 3D city models Computer science UAV Real-time computing interference 02 engineering and technology drone Interference (wave propagation) lcsh:Chemical technology 01 natural sciences Biochemistry Article Analytical Chemistry beamforming Base station Link budget 0202 electrical engineering electronic engineering information engineering lcsh:TP1-1185 Electrical and Electronic Engineering SINR Instrumentation 010401 analytical chemistry 020206 networking & telecommunications Atomic and Molecular Physics and Optics 0104 chemical sciences LTE cellular |
| Zdroj: | Sensors (Basel, Switzerland) Sensors Volume 18 Issue 12 Sensors, Vol 18, Iss 12, p 4311 (2018) |
| ISSN: | 1424-8220 |
| Popis: | Cellular connectivity for UAV systems is interesting because it promises coverage in beyond visual line of sight scenarios. Inter-cell interference has been shown to be the main limiting factor at high altitudes. Using a realistic 3D simulator model, with real base station locations, this study confirms that UAVs at high altitudes suffer from significant interference, resulting in a worse coverage compared to ground users. When replacing the existing base stations by mmWave cells, our results indicate that ground coverage is decreased to only 90%, while UAVs just above rooftop level have a coverage probability of 100%. However, UAVs at higher altitude still suffer from excessive interference. Beamforming has the potential to improve mmWave link budget and to decrease interference and is for this reason a promising technology for ensuring connectivity to aerial users. ispartof: SENSORS vol:18 issue:12 ispartof: location:Switzerland status: Published online |
| Databáze: | OpenAIRE |
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