Performance analysis of SWIPT NOMA based satellite-terrestrial system

Journal of Lanzhou University of Technology ›› 2021, Vol. 47 ›› Issue (6): 94-99.

• Automation Technique and Computer Technology • Previous Articles Next Articles

Performance analysis of SWIPT NOMA based satellite-terrestrial system

ZHAO Jin-long^1,2, HUO Ming-ming³, TAN Deng-tai¹

1. School of Artificial Intelligence, Gansu University of Political Science and Law, Lanzhou 730070, China;
2. School of Electronic and Information Engineering, Beihang University, Beijing 100191, China;
3. Archives Center, Lanzhou Univ. of Tech., Lanzhou 730050, China

Received:2020-12-23 Online:2021-12-28 Published:2021-12-28

Abstract

Abstract: In order to improve the resource utilization and user fairness of satellite-terrestrial system, a simultaneous wireless information and power transfer (SWIPT) non-orthogonal multiple access (NOMA) technology assisted satellite-terrestrial system transmission scheme is proposed. Firstly, the outage performance of the system is investigated in the presence of imperfect channel state information (CSI), and the outage probability expression is derived. Secondly, by analyzing the asymptotic outage probability, it is observed that there is an error floor in the high SNR region due to the existence of imperfect CSI. In addition, the effects of channel estimation errors and shadow fading on system throughput and energy efficiency are studied. Finally, the numerical simulation results are provided to validate theoretical derivation and the performance gains obtained by introducing SWIPT NOMA technology into the satellite-terrestrial system.

Key words: satellite-terrestrial system, NOMA, SWIPT, system performance, imperfect CSI

CLC Number:

TN911

ZHAO Jin-long, HUO Ming-ming, TAN Deng-tai. Performance analysis of SWIPT NOMA based satellite-terrestrial system[J]. Journal of Lanzhou University of Technology, 2021, 47(6): 94-99.

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Performance analysis of SWIPT NOMA based satellite-terrestrial system

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