带硬件损伤的双向卫星多地面中继网络的性能分析。

Performance Analysis of Two-Way Satellite Multi-Terrestrial Relay Networks with Hardware Impairments.

机构信息

College of Communication Engineering, Army Engineering University of PLA (Its Old Name Is PLA University of Science and Technology), Nanjing 210007, China.

National University of Defense Technology, Nanjing 210016, China.

出版信息

Sensors (Basel). 2018 May 15;18(5):1574. doi: 10.3390/s18051574.

DOI:10.3390/s18051574

PMID:29762518

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5982951/

Abstract

In this paper, we investigate the performance of a two-way hybrid satellite multi-terrestrial cooperative network with hardware impairments (HIs). Particularly, opportunistic relay selection scheme is employed in the considered network, which can substantially enhance the spectral efficiency and spatial diversity gain. By considering both the amplify-and-forward (AF) and decode-and-forward (DF) relay protocols, the closed-form expressions of the outage probability (OP) and throughput for the system are derived. Furthermore, in order to observe the effects of HIs level and the number of terrestrial relays on the system performance at high signal-to-noise ratios (SNRs), the asymptotic expressions of the system performance are also derived. Finally, computer results are presented to reveal the correctness of the analytical results.

摘要

在本文中，我们研究了具有硬件损伤（HIs）的双向混合卫星-地面协同网络的性能。特别地，所考虑的网络中采用了机会中继选择方案，这可以显著提高频谱效率和空间分集增益。通过考虑放大转发（AF）和译码转发（DF）两种中继协议，推导了系统的中断概率（OP）和吞吐量的闭式表达式。此外，为了观察高信噪比（SNRs）下 HI 水平和地面中继数量对系统性能的影响，还推导了系统性能的渐近表达式。最后，给出了计算机仿真结果以验证分析结果的正确性。