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移动天线辅助STAR-RIS在集成传感和通信系统中的秘密率最大化

Guanyi Chen¹, Gang Wang¹, Jinlong Wang^1,2,3,4

¹Communication Research Center, Harbin Institute of Technology, Harbin 150001, China.

Entropy (Basel, Switzerland)

|December 24, 2025

概括

本研究介绍了一种使用可移动天线和可重新配置的智能表面来增强安全的综合传感和通信 (ISAC) 的新系统. 拟议的方法优化了天线位置和光束形成,以提高安全性能.

科学领域:

无线通信系统无线通信系统
信号处理信号处理
信息安全信息安全.

背景情况:

综合传感和通信 (ISAC) 系统从可移动天线 (MA) 和同时发射和反射可重新配置的智能表面 (STAR-RIS) 中受益.
现有的研究尚未充分利用MAs的空间灵活性和STAR-RIS的扩展覆盖范围,以应对ISAC的安全挑战.

研究的目的:

提出一个新的MA和STAR-RIS辅助的安全ISAC系统.
在一个拥有多个合法用户和潜在窃听者的系统中最大限度地提高最低保密率.
为了共同优化基站 (BS) 的主动光束成型,STAR-RIS的被动光束成型和MA位置.

主要方法:

制定一个最小的保密率最大化问题.
使用交替优化 (AO) 框架开发一个代算法.
应用半确定的放松 (SDR) 和连续凸近似 (SCA) 技术来解决复杂的子问题,包括MA位置优化.

主要成果:

与基准计划相比,拟议的许可证和STAR-RIS辅助计划显示了显著增强的安全性能.
梁成形和MA位置的联合优化有效地提高了系统安全性.
代算法有效地处理非凸的优化挑战.

结论:

拟议的方法通过利用MA和STAR-RIS有效地提高ISAC系统的安全性.
开发的优化技术为复杂的安全ISAC系统设计提供了可行的解决方案.
整合空间灵活性和先进的光束成型提供了巨大的安全优势.

关键词:

综合传感和通信 (ISAC) 系统可移动天线 (MA) 是一个可移动的天线.物理层的安全性是物理层的安全性.资源分配的资源分配.它可以同时发射和反射可重新配置的智能表面 (STAR-RIS).连续凸近似法 (SCA) 是一种

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