A Sparse algorithm of Intelligent Reflecting Surface for Physical Layer Secure Communication

作者：Linhan Wang, Wei Zhang · 发表于：2025 IEEE 4th International Conference on Computing, Communication, Perception and Quantum Technology (CCPQT) · 年份：2025 · DOI：10.1109/CCPQT66408.2025.11383417

Intelligent Reflecting Surfaces (IRS) enhance wireless communication security by dynamically adjusting channel properties through destructive interference at eavesdropping points, improving physical layer security. paper proposes an IRS sparse design scheme using a simplified clouded leopard algorithm to optimize reflective unit placement. Compared to existing methods, the sparse configuration achieves higher security rates under identical array size and power constraints. To address multi-objective optimization challenges, a penalty-based fitness function is designed, converting the problem into a constrained single-objective framework. This approach effectively balances security performance and resource efficiency.