Performance analysis of hybrid satellite-terrestrial cooperative transmission system based on relay selection

被引：0
|
作者：
Kong H. [1 ]
Lin M. [2 ]
Liu X. [1 ]
Wu X. [1 ]
Wang J. [2 ]
机构：
[1] College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing
[2] The Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Ministry of Education, Nanjing University of Posts and Telecommunications, Nanjing
来源：
| 1600年 / Chinese Institute of Electronics卷 / 42期
关键词：
Decode-and-forward; Hybrid satellite-terrestrial cooperative network (HSTCN); Performance analysis; Relay selection;
D O I：
10.3969/j.issn.1001-506X.2020.01.27
中图分类号：
学科分类号：
摘要：
Hybrid satellite-terrestrial cooperative network (HSTCN) has recently become an attractive research topic due to its potential to improve the quality-of-service of satellite communication. This paper investigates the outage performance of the considered HSTCN based on relay selection. First, by assuming that the maximum ratio combining is utilized at the destination, we obtain the end-to-end signal-to-noise ratio (SNR) by adopting the threshold-based decode-and-forward relay strategy in case that there is a direct link between the satellite and the terrestrial users. Next, the closed-form expressions for outage probability of the considered system with random selection and optimal selection schemes are derived, where the satellite links undergo shadowed-Rician fading, while the terrestrial links follow Nakagami-m fading. Furthermore, the asymptotic outage probability formulas at a high SNR are also developed to reveal the effects of representative parameters on the system performance conveniently. Finally, numerical results confirm the validity of the theoretical formulas and quantitatively analyze the benefits of cooperative transmission, thus providing a theoretical basis for the practical application of the HSTCN technology. © 2020, Editorial Office of Systems Engineering and Electronics. All right reserved.
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页码：198 / 205
页数：7
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