论文标题
智能反射表面辅助无线通信网络的秘密密钥一代
Secret Key Generation for Intelligent Reflecting Surface Assisted Wireless Communication Networks
论文作者
论文摘要
我们使用智能反射表面（IRS）辅助无线通信网络建议和分析秘密密钥生成。为此，我们首先制定了在有多个窃听器的情况下充当被动束缚器的IRS最低可实现的秘密关键能力。接下来，我们为IRS开发一个优化框架，该框架根据秘密关键容量下限来反映系数。为了得出一种可易和有效的解决方案，我们设计和分析了基于拟议优化的基于偶然的算法（SDR）和连续的凸近似（SCA）算法。仿真结果表明，采用我们的IRS算法可以显着提高广泛无线通道参数的秘密密钥生成能力。
We propose and analyze secret key generation using intelligent reflecting surface (IRS) assisted wireless communication networks. To this end, we first formulate the minimum achievable secret key capacity for an IRS acting as a passive beamformer in the presence of multiple eavesdroppers. Next, we develop an optimization framework for the IRS reflecting coefficients based on the secret key capacity lower bound. To derive a tractable and efficient solution, we design and analyze a semidefinite relaxation (SDR) and successive convex approximation (SCA) based algorithm for the proposed optimization. Simulation results show that employing our IRS-based algorithm can significantly improve the secret key generation capacity for a wide-range of wireless channel parameters.
