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首页> 外文期刊>IEEE Transactions on Vehicular Technology >Covert Communications in D2D Underlaying Cellular Networks With Antenna Array Assisted Artificial Noise Transmission
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Covert Communications in D2D Underlaying Cellular Networks With Antenna Array Assisted Artificial Noise Transmission

机译：具有天线阵列辅助人工噪声传输的D2D地下蜂窝网络中的隐蔽通信

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摘要

Due to its high speed and low latency, D2D communication plays an important role in providing proximity data services in 5G systems, which may contain privacy sensitive data. Covert communication is useful to protect the privacy of user data against adversaries. In a D2D underlaying cellular network, an antenna array can be used at a base station (BS) to transmit artificial noise to confuse adversaries that try to detect D2D covert signals. Based on the numbers of antennas at BS, two covert schemes are presented in this work and their performances are evaluated in terms of D2D covert throughput, i.e., maximum achievable D2D data rate with the given covertness requirements. As only channel distribution information (CDI) of adversary links is known to the BS, the average minimum error probability (AMEP) is used as a metric to measure the covertness performance. In the proposed schemes, closed-form expressions of the minimum AMEP and achievable D2D data rate are derived. It is shown that the derivation of minimum AMEP can be simplified if either one or massive antennas are allocated for sending artificial noise. The analytical results are compared to Monte-Carlo simulation results to verify the feasibility of the proposed schemes. It is also revealed that covert throughput can be further improved by setting system parameters properly, e.g., the number of antennas at BS and artificial noise transmit power.
机译：由于其高速和低延迟，D2D通信在可能包含隐私敏感数据的5G系统中提供邻近数据服务中起着重要作用。隐蔽通信对于保护用户数据免受攻击者的隐私很有用。在D2D底层蜂窝网络中，可以在基站（BS）处使用天线阵列传输人造噪声，以使试图检测D2D隐蔽信号的对手感到困惑。根据基站的天线数量，本文提出了两种隐蔽方案，并根据D2D隐蔽吞吐量（即在给定隐蔽性要求下可实现的最大D2D数据速率）评估了它们的性能。由于BS仅知道对手链路的信道分布信息（CDI），因此平均最小错误概率（AMEP）用作度量隐蔽性能的度量。在提出的方案中，导出了最小AMEP和可实现的D2D数据速率的闭式表达式。结果表明，如果分配一个或大量天线来发送人工噪声，则可以简化最小AMEP的推导。将分析结果与蒙特卡洛仿真结果进行比较，以验证所提出方案的可行性。还揭示出，通过适当地设置系统参数，例如，BS处的天线数量和人为噪声发射功率，可以进一步提高隐蔽吞吐量。

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  • 来源
    《IEEE Transactions on Vehicular Technology》 |2020年第3期|2980-2992|共13页
  • 作者

  • 作者单位

    Jiangsu Univ Sch Comp Sci & Commun Engn Zhenjiang 212013 Jiangsu Peoples R China|Anqing Normal Univ Univ Key Lab Intelligent Percept & Comp Anhui Pro Anqing 246003 Peoples R China;

    Jiangsu Univ Sch Comp Sci & Commun Engn Zhenjiang 212013 Jiangsu Peoples R China|Jiangsu Key Lab Secur Technol Ind Cyberspace Zhenjiang 212013 Jiangsu Peoples R China;

    Natl Cheng Kung Univ Dept Engn Sci Tainan 701 Taiwan;

  • 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

    Covert communication; D2D underlaying cellular network; artificial noise; antenna array;

    机译：秘密交流;D2D底层蜂窝网络;人为噪音;天线阵列;

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