Robust secure transmission for multiuser MISO systems with probabilistic QoS constraints

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• 作者：Lijian Zhang ; Liang Jin ; Wenyu Luo ; Chunming Wang…
• 关键词：physical layer security ; artificial noise ; imperfect CSI ; robust beamforming ; semidefinite program ; outage probability ; 022309 ; 物理层安全
人工噪声 ; 非理想信道状态信息 鲁棒波束成形 ; 半定规划 ; 中断概率
• 刊名：SCIENCE CHINA Information Sciences
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：59
• 期：2
• 页码：1-13
• 全文大小：634 KB
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• 作者单位：Lijian Zhang (1)
  Liang Jin (1)
  Wenyu Luo (1)
  Chunming Wang (1)
  Yanqun Tang (2)
  
  1. National Digital Switching System Engineering & Technological Research Center, Zhengzhou, 450002, China
  2. School of Information Systems Engineering, Zhengzhou Information Science and Technology Institute, Zhengzhou, 450001, China
  
• 刊物类别：Computer Science
• 刊物主题：Chinese Library of Science
  Information Systems and Communication Service
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1919

文摘

This paper considers a unicast multiuser multiple-input single-output (MISO) downlink system overheard by multiple single-antenna eavesdroppers. The objective is to jointly design the beamforming vectors and the artificial noise (AN) covariance matrix with imperfect channel state information (CSI) at the transmitter, such that the total transmit power is minimized while satisfying probabilistic quality of service (QoS) constraints at legitimate users and the eavesdroppers. Using Bernstein-type inequalities and the S-procedure, we recast the non-convex power minimization problem as two different convex semidefinite programs (SDPs) which can be solved using interior-point methods. Simulation results show that the proposed methods outperform a nonrobust method and the ones using the isotropic AN. Keywords physical layer security artificial noise imperfect CSI robust beamforming semidefinite program outage probability