This letter analyzes the fundamental performance of integrated sensing and communications (ISAC) systems. For downlink and uplink ISAC, the diversity orders are analyzed to evaluate the communication rate (CR) and the high signal-to-noise ratio (SNR) slopes are unveiled for the CR as well as the sensing rate (SR). Furthermore, the achievable downlink and uplink CR-SR regions are characterized. It is shown that ISAC can provide more degrees of freedom for both the CR and the SR than conventional frequency-division sensing and communications systems where isolated frequency bands are used for sensing and communications, respectively.
翻译：这封信分析了综合遥感和通信系统的基本性能。关于下行和上行连接ISAC,对多样性命令进行了分析,以评价通信率(CR)和高信号-噪音比率(SNR)以及感测率(SR),此外,还说明了可实现的下行和上行的CR-SR区域,表明ISAC为CR和SR提供的自由程度高于传统频率分流遥感和通信系统,前者分别用于遥感和通信。
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