Performance analysis of a hybrid satellite-terrestrial cooperative networks with multiuser feedback

被引：1
|
作者：
Yuan Z. [1 ]
Lin M. [1 ]
Liu X. [1 ]
Wang Z. [1 ]
Huang B. [1 ]
机构：
[1] College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2021年 / 43卷 / 04期
关键词：
Average number of feedback users; Ergodic capacity; Feedback outage probability; Hybrid satellite-terrestrial cooperative network; Multiuser feedback;
D O I：
10.12305/j.issn.1001-506X.2021.04.27
中图分类号：
学科分类号：
摘要：
The performance of a multiuser hybrid satellite-terrestrial cooperative network (HSTCN) based on threshold-base multiuse feedback schem is investigated. By adopting the amplify-and-forward (AF) protocol in relay and multiuser opportunity scheduling scheme, the output signal to noise ratio (SNR) is obtained. Then, by assuming that the satellite links experience shadowing-Rician fading while the terrestrial links undergo Rayleigh fading, the closed-form expressions for feedback outage probability, ergodic capacity and the average number of feedback users with the threshold-based channel state information feedback method is derived. Finally, computer simulation not only verifies the correctness of the analytical results, but also proves that multiuser scheduling scheme with the threshold-based feedback can reduce the amount of system feedback greatly while the performance is almost unchanged. © 2021, Editorial Office of Systems Engineering and Electronics. All right reserved.
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页码：1089 / 1098
页数：9
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