This article analyzes the performance of sensing and communications (S\&C) achieved by a multiple-input multiple-output downlink integrated S\&C (ISAC) system. Three ISAC scenarios are analyzed, including the sensing-centric design, communications-centric design, and Pareto optimal design. For each scenario, diversity orders and high signal-to-noise ratio slopes of the sensing rate (SR) and communication rate (CR) are derived to gain further insights. Numerical results reveal that \romannumeral1) ISAC achieves the same diversity order as existing frequency-division S\&C (FDSAC) techniques; \romannumeral2) ISAC achieves larger high-SNR slopes and a broader SR-CR region than FDSAC.

翻译：本文分析了多投入多输出下链路综合SçC(ISAC)系统所实现的遥感和通信(S ⁇ C)的性能,分析了ISAC的三种设想情况,包括以遥感为中心的设计、以通讯为中心的设计和Pareto最佳设计。每种设想情况,都得出了多样性命令以及遥感率和通信率的高度信号对噪音比率坡度,以获得进一步的认识。数字结果显示,ISAC实现了与现有的频率司S ⁇ C(FDCAC)技术相同的多样性顺序;\romannuphall2,ISAC取得了比FDSAAC更大的高SNR坡度和更大的SR-CR区域。