TY  - JOUR
T1  - Performance Analysis of Multinet for Anti-Jamming, Multiple Access Interference Mitigation, and Efficient Image Transmission in Spectrum Shared Non-Terrestrial Networks
AU  - Jeon, Hyerim 
AU  - Baek, Hoki 
JO  - The Journal of Korean Institute of Communications and Information Sciences
PY  - 2025
DA  - 2025/1/1
DO  - 10.7840/kics.2025.50.8.1217
KW  - Non-terrestrial networks
KW  - Spectrum sharing
KW  - Tactical data link
KW  - Image transmission
AB  - In Military Non-Terrestrial Networks (M-NTN), every node must utilize frequency hopping to ensure anti-jamming performance, and a multinet structure based on frequency hopping patterns is essential to support simultaneous operations. Additionally, spectrum-sharing technology is required to efficiently utilize the limited bandwidth. To achieve this, the M-NTN design process must determine key parameters such as the message error probability (MEP) and the number of simultaneously operable nets, followed by a performance analysis of the multinet structure. Meanwhile, the low transmission rate of conventional tactical networks significantly limits the exchange of situational awareness information transmitted as images. Therefore, efficient image transmission requires effective time slot allocation, message packing techniques, and reliable image retransmission methods. Accordingly, this paper proposes a technique to reduce multiple access interference while maintaining anti-jamming performance and improving image transmission efficiency in a spectrum-sharing-based M-NTN environment. Furthermore, key network design parameters are derived, and a multinet performance analysis is presented for environments subject to jamming attacks.