论文标题
集成感应和通信：基于信息的框架
Integrated Sensing and Communications: A Mutual Information-Based Framework
论文作者
论文摘要
综合传感和通信（ISAC）有可能能够规避现有的频率传感和通信（FDSAC）技术的局限性。因此，它最近引起了极大的关注。本文旨在从共同信息（MI）的角度提出统一的ISAC分析框架。根据提出的框架，传感性能和通信性能分别由传感MI和通信MI评估。该框架的统一源于以下事实：传感和通信（S \＆C）性能指标，即S \＆c mi具有相似的物理和数学属性以及相同的测量单元。基于此框架，研究了下行链路和上行链路ISAC系统的S \＆C性能，并将其与FDSAC系统的S \ c性能进行了比较。沿着每个考虑的系统设置，提供数值结果，以证明ISAC比常规FDSAC设计的优越性。最后，在基于MI的ISAC的背景下提供了有希望的开放研究方向。
Integrated sensing and communications (ISAC) is potentially capable of circumventing the limitations of existing frequency-division sensing and communications (FDSAC) techniques. Hence, it has recently attracted significant attention. This article aims to propose a unified analytical framework for ISAC from a mutual information (MI) perspective. Based on the proposed framework, the sensing performance and the communication performance are evaluated by the sensing MI and the communication MI, respectively. The unity of this framework is originated from the fact that the sensing and communication (S\&C) performance metrics, i.e., the S\&C MI, have the similar physical and mathematical properties as well as the same unit of measurement. Based on this framework, the S\&C performance of downlink and uplink ISAC systems is investigated and compared with that of FDSAC systems. Along each considered system settings, numerical results are provided to demonstrate the superiority of ISAC over conventional FDSAC designs. Finally, promising open research directions are provided in the context of MI-based ISAC.
