Logo
ScienceStack
Table of Contents
Fetching ...
Sign In

Performance Analysis of Tri-Sector Reflector Antennas for HAPS-Based Cellular Networks

German Svistunov, Matteo Bernabe, David Lopez-Perez

Abstract

The increasing demand for ubiquitous, highcapacity mobile connectivity has driven cellular systems to explore beyond-terrestrial deployments. In this paper, we present a system-level performance evaluation of fifth-generation (5G) non-terrestrial network (NTN) enabled by high-altitude platform station (HAPS)-based base stations (BSs) equipped with tri-sectoral reflector antennas against fourth-generation (4G) terrestrial network (TN) and 5G TN deployments in a multicell dense urban environment. Using the simulation results comprising the average effective downlink signal-to-interference-plus-noise ratio (SINR) and the average user throughput, along with the subsequent interference analysis, we demonstrate that the reflector-based HAPS architecture is primarily constrained by inter-cell interference, while the combination of reflector configuration and deployment altitude represents a key design parameter.

Performance Analysis of Tri-Sector Reflector Antennas for HAPS-Based Cellular Networks

Abstract

The increasing demand for ubiquitous, highcapacity mobile connectivity has driven cellular systems to explore beyond-terrestrial deployments. In this paper, we present a system-level performance evaluation of fifth-generation (5G) non-terrestrial network (NTN) enabled by high-altitude platform station (HAPS)-based base stations (BSs) equipped with tri-sectoral reflector antennas against fourth-generation (4G) terrestrial network (TN) and 5G TN deployments in a multicell dense urban environment. Using the simulation results comprising the average effective downlink signal-to-interference-plus-noise ratio (SINR) and the average user throughput, along with the subsequent interference analysis, we demonstrate that the reflector-based HAPS architecture is primarily constrained by inter-cell interference, while the combination of reflector configuration and deployment altitude represents a key design parameter.
Paper Structure (17 sections, 9 equations, 4 figures, 1 table)

This paper contains 17 sections, 9 equations, 4 figures, 1 table.

Table of Contents

  1. Introduction
  2. Related Work
  3. Our contribution
  4. System model
  5. Deployment scenarios
  6. Network deployment
  7. Frequency bands
  8. User distribution
  9. NTN scenario adjustments
  10. Reflector antenna tilt
  11. Channel models
  12. Cell association, SINR and rate computation
  13. Simulation Results
  14. Impact of HAPS Altitude and Reflector Aperture
  15. Performance Comparison with Terrestrial Deployments
  16. ...and 2 more sections

Figures (4)

  • Figure 1: NTN deployment scenario over a hexagonal grid (a), reflector antenna tilt adjustment and HPBW footprint increase for different altitudes (1 km, 2 km, 3 km, and 4 km for the aperture radius of 10 wavelengths) (b).
  • Figure 2: Average effective SINR (left) and UE throughput (right) of the HAPS-based deployment as functions of the platform altitude and reflector antenna aperture radius.
  • Figure 3: Spatial heatmaps of the average effective SINR and the useful and interfering received power across the hexagonal deployment.
  • Figure 4: HAPS-based NTN vs. TN deployment: mean SINR, throughput, and spectral efficiency at the UE side.