In this paper, an integrated sensing and communication (ISAC) system is investigated. Initially, we introduce a design criterion wherein sensing data acquired from the preceding time slot is employed for instantaneous optimal beamforming in the succeeding time slot, aiming to enhance the communication rate. Subsequently, the development of optimal beamforming is addressed, and a high-caliber suboptimal resolution is derived utilizing successive convex approximation (SCA) techniques combined with the iterative rank minimization (IRM) methodology. Our evaluations, grounded on numerical analyses, reveal that the communication rate of the introduced beamforming strategy surpasses that of conventional omnidirectional sensing and pilot based approaches.

翻译：本文研究了一种集成感知与通信系统。首先，我们提出了一种设计准则，该准则利用前一时隙获取的感知数据，在后一时隙实现瞬时最优波束成形，旨在提升通信速率。随后，我们探讨了最优波束成形的构建问题，并利用逐次凸逼近技术与迭代秩最小化方法相结合，推导出一种高性能的次优解决方案。基于数值分析的评估结果表明，所提出的波束成形策略在通信速率上优于传统的全向感知及基于导频的方法。