A large network employing integrated sensing and communication (ISAC) where a single transmit signal by the base station (BS) serves both the radar and communication modes is studied. Typically in ISAC, bistatic radar detection is done at a passive radar. The radar-mode performance is significantly more vulnerable than the communication-mode due to the double path-loss in the signal component while interferers have direct links. To combat this, we propose: 1) monostatic radar detection at the BS via full-duplex (FD), 2) a novel dynamic transmission strategy (DTS). With FD monostatic detection we are able to improve radar-mode performance over bistatic detection in certain scenarios, while bistatic detection dominates in others. We also analyze the performance of joint bistatic and FD monostatic detection. Significant improvements in radar-performance can be attained with joint detection in certain scenarios, while using one strategy is beneficial in others. Our results highlight that with the DTS we are able to significantly improve quality of radar detection at the cost of quantity. Further, DTS causes some performance deterioration to the communication-mode; however, the gains attained for the radar-mode are much higher. We show that joint detection and DTS together can significantly improve radar performance from a traditional radar-network.
翻译:使用综合遥感和通信(ISAC)的大型网络使用综合遥感和通信(ISAC),研究基地站的单一传输信号,为雷达和通信模式服务。在ISAC中,通常在被动雷达中进行双层雷达探测。雷达模式性能比通信模式明显比通信模式更脆弱,因为信号部件中存在双轨损耗,而干扰者则有直接联系。为解决这一问题,我们建议:(1)在BS上通过全盘(FD)进行单静式雷达探测,(2)采取新的动态传输战略(DTS)。随着DTS的检测,我们在某些情景中能够改进雷达-模式的检测,而在其他情景中,对二层雷达的检测则占主导地位。我们还分析了联合对双层和FD单层探测的性能。通过在某些情景中进行联合检测,雷达绩效的显著改进,同时使用一种策略对其它情景有利。我们的结果突出表明,与DTS相比,我们能够大大提高雷达检测的质量。此外,DTS的性能使通信-模式出现一些高得多的性差;然而,我们从雷达中取得的传统性能。