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UAV-Enabled NOMA Networks Analysis With Selective Incremental Relaying and Imperfect CSI

机译：具有无人机的NOMA网络分析，具有选择性增量中继和不完美的CSI

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摘要

This paper studies the performance of unmanned aerial vehicle (UAV)-enabled NOMA networks with selective incremental relaying and imperfect channel state information (CSI). In particular, an access point transmits a superposed signal based on NOMA principle to an UAV terminal (UT) which can act as a relay to assist the information transmission for a ground terminal (GT). Different from the conventional relaying protocol requiring UT to relay the message all the time no matter how the received signal quality of two terminals are, we propose a novel NOMA-based selective incremental relaying protocol that allows relay to forward messages on the condition of the received signal with satisfied quality at UT and the unsatisfied quality signal at GT. The closed-form solutions of outage probabilities for the two terminals are characterized with the elevation angle-based path loss exponent and small-scale fading. Moreover, the benchmark schemes are provided to exhibit the superiority of the proposed protocol. Finally, simulation and theoretical results validate the correctness of the outage analysis, demonstrate the advantage of the proposed relaying protocol over its counterparts, and show that the stronger impact of channel estimation error on GT than UT in terms of outage probability.
机译：本文研究了无人驾驶飞行器（UAV）的NOMA网络与选择性增量中继和不完美信道状态信息（CSI）的性能。特别地，接入点基于NOMA原理向UAV终端（UT）发送叠加信号，其可以充当继电器以帮助接地端子（GT）的信息传输。与传统的中继协议不同，要求ut以无论两个终端的接收信号质量如何，我们提出了一种基于NOMA的基于诺马的选择性增量中继协议，允许中继到接收的条件的转发消息在UT的质量满意的信号和GT的不满质量信号。两个端子的停电概率的闭合液解决方案具有基于升高角度的路径损耗指数和小规模衰落的特征。此外，提供了基准方案以表现出所提出的协议的优越性。最后，仿真和理论结果验证了中断分析的正确性，证明了所提出的中继协议在其对应方面的优势，并表明在中断概率方面的信道估计误差对GT的较强影响。

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  • 来源
    《IEEE Transactions on Vehicular Technology》 |2020年第12期|16276-16281|共6页
  • 作者

    Cheng Guo; Chongtao Guo; Shengli Zhang; Zhiguo Ding;

  • 作者单位

    Guangdong Key Laboratory of Intelligent Information Processing Shenzhen University Shenzhen Guangdong China;

    Guangdong Key Laboratory of Intelligent Information Processing Shenzhen University Shenzhen Guangdong China;

    Guangdong Key Laboratory of Intelligent Information Processing Shenzhen University Shenzhen Guangdong China;

    School of Electrical and Electronic Engineering the University of Manchester Manchester U.K.;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    NOMA; Unmanned aerial vehicles; Relays; Protocols; Gold; Fading channels; Silicon carbide;

    机译：NOMA;无人驾驶飞行器;继电器;协议;金;褪色渠道;碳化硅;

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