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- Title
Impact of CCI on performance analysis of downlink satellite-terrestrial systems: outage probability and ergodic capacity perspective.
- Authors
Nguyen, Nhat-Tien; Nguyen, Hong-Nhu; Le, Anh-Tu; Nguyen, Nhan Duc; Do, Dinh-Thuan; Voznak, Miroslav
- Abstract
The evolution of non-orthogonal multiple access (NOMA) has raised many opportunities for massive connectivity with less latency in signal transmissions at great distances. We aim to integrate NOMA with a satellite communications network to evaluate system performance under the impacts of imperfect channel state information and co-channel interference from nearby systems. In our considered system, two users perform downlink communications under power-domain NOMA. We analyzed the performance of this system with two modes of shadowing effect: heavy shadowing and average shadowing. The detailed performance was analyzed in terms of the outage probability and ergodic capacity of the system. We derive closed-form expressions and performed a numerical analysis. We discover that the performance of two destinations depends on the strength of the transmit power at the satellite. However, floor outage occurs because the system depends on other parameters, such as satellite link modes, noise levels, and the number of interference sources. To verify the authenticity of the derived closed-form expressions, we also perform Monte-Carlo simulations.
- Subjects
CO-channel interference; TELECOMMUNICATION satellites; SYMBOL error rate; TELECOMMUNICATION systems; PROBABILITY theory; NUMERICAL analysis; ERROR probability; ELECTRIC power failures
- Publication
EURASIP Journal on Wireless Communications & Networking, 2022, Vol 2022, Issue 1, p1
- ISSN
1687-1472
- Publication type
Article
- DOI
10.1186/s13638-022-02140-4