基于携能通信的非信任双向中继网络安全传输方案

欧静兰; 余欢欢; 吴皓威; 马锐; 王柳彬

doi:10.11999/JEIT200069

基于携能通信的非信任双向中继网络安全传输方案

doi: 10.11999/JEIT200069

欧静兰^{1, 3},
余欢欢¹,
吴皓威^{1, 2, 3, ,},
马锐¹,
王柳彬¹

1.
重庆大学微电子与通信工程学院　重庆　400044
2.
重庆大学通信与测控中心　重庆　400044
3.
空天地网络互连与信息融合重庆市重点实验室　重庆　400044

基金项目: 民用航天十三五预研项目(D010201)，重庆市科技创新专项院士基金(cstc2018zdcy-yszxX0001, cstc2017zdcy-yszx0008)，国家留学基金委项目(201908505018)

详细信息

作者简介:
欧静兰：女，1981年生，副教授，硕士生导师，主要研究方向为宽带无线通信、中继通信等

余欢欢：女，1995年生，硕士生，研究方向为物理层安全

吴皓威：男，1981年生，副研究员，博士生导师，主要研究方向为无线局域网、宽带无线通信等

马锐：女，1993年生，博士生，研究方向为物理层安全

王柳彬：男，1996年生，硕士生，研究方向为物理层安全

通讯作者:
吴皓威　wuhaowei@cqu.edu.cn

中图分类号: TN929.5
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出版历程
- 收稿日期: 2020-01-16
- 修回日期: 2020-06-14
- 网络出版日期: 2020-07-16
- 刊出日期: 2020-12-08

Security Transmission Scheme for Two-way Untrusted Relay Networks Based on Simultaneous Wireless Information and Power Transfer

Jinglan OU^{1, 3},
Huanhuan YU¹,
Haowei WU^{1, 2, 3
, ,},
Rui MA¹,
Liubin WANG¹

1.
School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China
2.
Center of Communication and Tracking Telemetry Command, Chongqing University, Chongqing 400044, China
3.
Chongqing Key Laboratory of Space Information Network and Intelligent Information Fusion, Chongqing 400044, China

Funds: The Advanced Research Project of Civil Aerospace Technologies in 13th Five-year Plan (D010201), The Academician Fund of Chongqing Science and Technology Innovation Guidance Project (cstc2018zdcy-yszxX0001, cstc2017zdcy-yszxX0008), The China Scholarship Council Project(201908505018)

摘要

摘要:
针对非信任双向中继网络的能量受限和信息安全问题，该文提出一种基于无线携能通信(SWIPT)与人工噪声辅助的物理层安全传输方案。该方案中的非信任中继采用功率分割(PS)策略辅助合法用户进行保密通信，而全双工干扰机在进行能量采集的同时发送人工噪声以确保系统安全。以最大化系统保密性能为目标，优化了中继的PS因子，推导了保密和速率的解析式及高信噪比条件下最佳PS因子的闭式解。特别针对非理想信道状态信息的情况，分析了信道估计误差对系统保密性能的影响。仿真结果验证了理论推导的正确性，并证明了所提的基于PS策略的干扰机协同传输方案相比采用时间切换(TS)策略或目的节点协同干扰的方案具有更优的保密性能。
- 无线携能通信 /
- 功率分割 /
- 非信任中继 /
- 保密和速率 /
- 人工噪声
Abstract:
The physical-layer security transmission scheme based on Simultaneous Wireless Information and Power Transfer (SWIPT) and artificial noise-aided is proposed to solve the energy-constrained and information security issues upon the two-way untrusted relay networks. The Power Splitting (PS) strategy is adopted by the untrusted relay to assist the confidential communication, where a full-duplex jammer is assigned to send the artificial noise while harvesting energy, to ensure the system security. The PS factor is optimized to maximize the secrecy performance, and then the closed-form expressions of the secrecy sum-rate and optimal PS ratio are derived in the high signal-to-noise ratio regime. Besides, the impacts of the channel estimation error on the system security are analyzed for the imperfect channel state information. Simulation results validate the correctness of the theoretical derivation and demonstrate that the proposed transmission scheme based on PS strategy and friendly jammer outperforms that based on the Time Switching (TS) strategy or destination-aided jamming.
- Simultaneous Wireless Information and Power Transfer (SWIPT) /
- Power Splitting (PS) /
- Untrusted relay /
- Secrecy sum-rate /
- Artificial noise

HTML全文

图 1 基于SWIPT的非信任双向中继网络模型

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图 2 非信任双向中继网络的信息与能量传输过程

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图 3 保密和速率Rs随TS因子$\alpha $与PS因子$\rho $的变化曲线

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图 4 节点通信距离变化时保密和速率Rs随PS因子$\rho $的变化曲线

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图 5 最佳PS因子${\rho ^*}$和对应的Rs^*随发射信噪比$\lambda $变化曲线

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图 6 非理想CSI条件下的保密和速率Rs随不同链路的误差界${\varepsilon _{ij}}$和发射信噪比$\lambda $的变化曲线

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