Robust Beamforming Avoiding Satellite Interference in Integrated Terrestrial and Satellite Networks

CAO, Wenjing; WANG Yafei; WANG Wenjin; CHATZINOTAS, Symeon; OTTERSTEN, Björn

doi:10.1109/VTC2025-Fall65116.2025.11309930

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Robust Beamforming Avoiding Satellite Interference in Integrated Terrestrial and Satellite Networks

CAO, Wenjing; WANG Yafei; WANG Wenjin et al.

2025 • In Robust Beamforming Avoiding Satellite Interference in Integrated Terrestrial and Satellite Networks

Peer reviewed

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https://hdl.handle.net/10993/66546

DOI
10.1109/VTC2025-Fall65116.2025.11309930

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Abstract :

[en] This paper investigates robust beamforming based on statistical channel state information (sCSI), against satellite-toterrestrial user terminal (UT) interference arising from spectrum sharing in integrated terrestrial and satellite networks (ITSNs). First, we develop an integral-form interference model to characterize the interference from satellite to terrestrial base station (BS) UTs. Then, we propose a robust interference avoidance (IA) beamforming scheme under interference and power constraints. A closed-form solution is derived based on the minimum mean square error (MMSE) criterion, and a bisection method is employed to meet the interference threshold. Furthermore, we introduce a BS position-aided (PA) approximation scheme to eliminate the complex integral calculations. Simulation results validate the effectiveness of the proposed schemes.

Disciplines :

Computer science

Author, co-author :

CAO, Wenjing

WANG Yafei

WANG Wenjin

CHATZINOTAS, Symeon ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom

OTTERSTEN, Björn ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > PI Ottersten

External co-authors :

yes

Language :

English

Title :

Robust Beamforming Avoiding Satellite Interference in Integrated Terrestrial and Satellite Networks

Publication date :

2025

Event name :

VTC2025-Fall

Event organizer :

IEEE

Event place :

Chengdu, China

Event date :

19-22 October 2025

By request :

Yes

Audience :

International

Main work title :

Robust Beamforming Avoiding Satellite Interference in Integrated Terrestrial and Satellite Networks

Publisher :

IEEE

Peer reviewed :

Peer reviewed

Funders :

National Key R&D Program of China
Jiangsu Province BasicResearch Project
NSCF - National Natural Science Foundation of China
Fundamental Research Funds for the Central Universitiesunder

Available on ORBilu :

since 27 November 2025

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Bibliography

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