论文标题
IRS辅助MIMO MMWAVE系统的安全传输
Secure Transmission for IRS-Assisted MIMO MmWave Systems
论文作者
论文摘要
在本文中，我们研究了在智能反射表面（IRS）辅助毫米波（MMWave）系统中的固定光束形成设计，其中杂交波束形成（HB）和无源光束形成（PB）分别由发射机和IRS使用。为了最大程度地提高保密能力，Hb和Pb的关节优化被公正为具有恒定模块约束的非凸问题。为了有效解决这样一个具有挑战性的问题，原始问题被分解为PB子问题和HB子问题，然后通过建议的算法顺序解决这两个子问题。模拟结果表明，与最先进的作品相比，提出的方法的表现出色。
In this paper, we investigate the secure beamforming design in an intelligent reflection surface (IRS) assisted millimeter wave (mmWave) system, where the hybrid beamforming (HB) and the passive beamforming (PB) are employed by the transmitter and the IRS, respectively. To maximize the secrecy capacity, the joint optimization of HB and PB is formulated as a nonconvex problem with constant-modulus constraints. To efficiently solve such a challenging problem, the original problem is decomposed into a PB subproblem and an HB subproblem, then these two subproblems are sequentially solved by proposed algorithms. Simulation results demonstrate the superior performance of proposed approach in comparison with the state-of-the-art works.
