arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.10523eess.SP
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基于IoT的LEO卫星网络直接接入方案性能分析

Performance Analysis of Novel Direct Access Schemes for LEO Satellites Based IoT Network

Ayush Kumar Dwivedi, Sai Praneeth Chokkarapu, Sachin Chaudhari, Neeraj Varshney

摘要:

分析了基于低轨卫星的物联网网络的性能,其中每个物联网节点利用多颗卫星与地面站进行通信。在这项工作中,我们考虑在每个卫星上的固定和可变增益放大转发(AF)中继协议,其中从每个物联网节点接收的信号在发送到地面GS进行数据处理之前被放大。为了分析这种新的基于LEO卫星的直接接入体系结构的性能,推导了中断概率的封闭形式的表达式,考虑两种合并方案在GS:(i)选择合并;(ii)最大比合并。此外,为了获得更多的见解的分集阶数和编码增益,渐近中断概率分析在高信噪比的两种方案也进行。最后,仿真结果验证了所得出的分析结果,并开发了几个有趣的见解系统的性能。

英文摘要:

This paper analyzes the performance of low earth orbit (LEO) satellites based internet-of-things (IoT) network where each IoT node makes use of multiple satellites to communicate with the ground station (GS). In this work, we consider fixed and variable gain amplify-and-forward (AF) relaying protocol at each satellite where the received signal from each IoT node is amplified before transmitting to the terrestrial GS for data processing. To analyze the performance of this novel LEO satellites based direct access architecture, the closed-form expressions for outage probability are derived considering two combining schemes at the GS: (i) selection combining; (ii) maximal ratio combining. Further, to gain more insights for diversity order and coding gain, asymptotic outage probability analysis at high SNR for both schemes is also performed. Finally, simulation results are presented to validate the analytical results derived and also to develop several interesting insights into the system performance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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