在复杂的城市环境中,针对ISAC-enabled RSU系统的层次束形优化
Zhiyuan You1, Na Lv2, Guimei Zheng3
1The Graduate School, Air Force Engineering University, Xi'an 710038, China.
Sensors (Basel, Switzerland)
|November 13, 2025
概括
本研究介绍了集成传感和通信 (ISAC) 系统的层次束形状方法,以平衡传感精度和通信可靠性. 这种新的方法优化了复杂的城市环境中的传感和通信性能.
科学领域:
- 电气工程 电气工程
- 计算机科学 计算机科学
- 信号处理 信号处理
背景情况:
- 综合传感和通信 (ISAC) 系统在城市环境中面临传感和通信之间的性能权衡.
- 传统的优化方法在联合传感-通信问题上与局部最佳和次优结果作斗争.
- 现有的解决方案往往无法有效平衡ISAC中相互矛盾的目标.
研究的目的:
- 为支持ISAC的路边装置 (RSU) 提出一种新的层次束形优化解决方案.
- 解决复杂的城市环境中目标传感和多用户通信之间的性能权衡问题.
- 共同优化通信SINR和传感SCNR,以提高准确性和可靠性.
主要方法:
- 将联合传感-通讯问题分解为两级"领导者-追随者"等级结构.
- 在领导层中使用最大-最小策略与两截式方法来解决通信束成形.
- 在追随层中利用半定义编程 (SDP) 来最大限度地传感SCNR,并结合了时空资源隔离.
主要成果:
- 层次优化有效地平衡了通信SINR和感知SCNR.
- 拟议的方法表明,传感精度和通信可靠性同时得到改善.
- 模拟结果验证了联合优化战略的有效性.
结论:
- 层次式光束成形方法为城市环境中的ISAC系统提供了可行的解决方案.
- 这种方法有效地减轻了传感和通信性能之间的固有权衡.
- 拟议的技术提高了ISAC支持的RSU的传感能力和通信可靠性.
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