Outage-Aware Secure Beamforming in MISO Wireless Interference Networks
Outage-Aware Secure Beamforming in MISO Wireless Interference Networks
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DOI：
10.1109/lsp.2018.2829663
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发表时间：
2018-07-01
影响因子：
3.9
通讯作者：
Poor, H. Vincent
中科院分区：
文献类型：
--
作者：
Sheng, Zhichao;Hoang Duong Tuan;Poor, H. Vincent
基于窃听者窃听的多输入单输出无线网络的信道分布，本文提出了一种中断感知波束形成设计，以优化用户的服务质量(Qos)。这是一个具有非凹目标函数和波束形成向量中的非线性等式约束的计算非常困难的问题。提出了一种计算复杂度低、收敛速度快的路径跟踪算法，并将其推广到求解用户服务质量约束下最大化网络安全能量效率的问题。数值算例验证了所提算法的有效性。
Based on the knowledge of the channel distributions of a multi-input single-output wireless network of multiple transmitter-user pairs overheard by an eavesdropper, this letter develops an outage-aware beamforming design to optimize the users' quality-of-service (QoS) in terms of their secrecy rates. This is a very computationally difficult problem with a nonconcave objective function and nonlinear equality constraints in beamforming vectors. A path-following algorithm of low-complexity and rapid convergence is proposed for computation, which is also extended to solving the problem of maximizing the network's secure energy efficiency under users' QoS constraints. Numerical examples are provided to verify the efficiency of the proposed algorithms.