On the Investigation of Antenna Beam Pattern Models for Fast Beam Placement in LEO Satellite Networks
Abstract
In this paper, we investigate the impact of antenna beam pattern models on the beam placement problem in Low Earth Orbit (LEO) satellite networks. Unlike conventional beam placement studies that often rely on a fixed antenna pattern or a predefined half-power beamwidth, this work compares four representative gain models, namely the Bessel J1 model, the combined Bessel J1+J3 model, the Gaussian model, and a 3GPP-TR 37.842 model. For each antenna pattern, the corresponding half-power angle is obtained and used to construct a user compatibility graph. The beam placement problem is then transformed into a Minimum Clique Cover problem and solved using a graph coloring-based algorithm. Numerical results compare the considered antenna models in terms of the number of active beams, load balancing, statistical channel gain-to-noise ratio (SCGNR), and signal-to-interference-plus-noise ratio (SINR). We analyze the impact of increasing the number of active beams on SINR-based spectral efficiency to explain the importance of carefully controlling the number of active beams. The results show that antenna beam pattern models affect both beam resource usage and link quality, highlighting the need for antenna-pattern-aware beam placement in LEO satellite networks.
Related
- Antenna Placement for Monostatic Near-Field Wireless Sensing
- An adaptive voxel-wise iterative satellite interference localization method based on a double-layer UCA antenna
- Fluid Antenna-Aided Robust Secure Uplink Transmission in LEO Satellite Constellations
- Investigation of RIS Integration in Satellite Systems Guided by ITU-R VSAT Radiation Diagram
- Exploiting Pinching Antenna Systems in NOMA Covert Communication Networks
BibTeX
@misc{tam2026investigation,
title = {{On the Investigation of Antenna Beam Pattern Models for Fast Beam Placement in LEO Satellite Networks}},
author = {Ninh Thi-Thanh Tam and Nguyen Viet Anh and Nguyen Minh Quan and Trinh Van Chien},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.18930},
eprint = {2610.18930},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.18930},
}
RIS
TY - UNPB
TI - On the Investigation of Antenna Beam Pattern Models for Fast Beam Placement in LEO Satellite Networks
AU - Ninh Thi-Thanh Tam
AU - Nguyen Viet Anh
AU - Nguyen Minh Quan
AU - Trinh Van Chien
PY - 2026
DA - 2026/10/13
PB - arXiv
DO - 10.48550/arxiv.2610.18930
UR - https://arxiv.org/abs/2610.18930
AB - In this paper, we investigate the impact of antenna beam pattern models on the beam placement problem in Low Earth Orbit (LEO) satellite networks. Unlike conventional beam placement studies that often rely on a fixed antenna pattern or a predefined half-power beamwidth, this work compares four representative gain models, namely the Bessel J_1 model, the combined Bessel J_1+J_3 model, the Gaussian model, and a 3GPP-TR 37.842 model. For each antenna pattern, the corresponding half-power angle is obtained and used to construct a user compatibility graph. The beam placement problem is then transformed into a Minimum Clique Cover problem and solved using a graph coloring-based algorithm. Numerical results compare the considered antenna models in terms of the number of active beams, load balancing, statistical channel gain-to-noise ratio (SCGNR), and signal-to-interference-plus-noise ratio (SINR). We analyze the impact of increasing the number of active beams on SINR-based spectral efficiency to explain the importance of carefully controlling the number of active beams. The results show that antenna beam pattern models affect both beam resource usage and link quality, highlighting the need for antenna-pattern-aware beam placement in LEO satellite networks.
ER -