Performance of Downlink and Uplink Integrated Sensing and Communications (ISAC) Systems
Performance of Downlink and Uplink Integrated Sensing and Communications (ISAC) Systems
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DOI：
10.1109/lwc.2022.3184409
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发表时间：
2022-09-01
影响因子：
6.3
通讯作者：
Yang, Hongwen
中科院分区：
文献类型：
--
作者：
Ouyang, Chongjun;Liu, Yuanwei;Yang, Hongwen
这封信分析了综合传感和通信（ISAC）系统的基本性能。对于下行链路和上行链路ISAC，分集阶数进行了分析，以评估的通信速率（CR）和高信噪比（SNR）的斜率被揭露的CR以及感测速率（SR）。此外，可实现的下行链路和上行链路CR-SR区域的特征。结果表明，ISAC可以提供更多的自由度的CR和SR比传统的频分传感和通信系统，其中隔离的频带分别用于传感和通信。
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.