通过下行功率控制实现CBRS频段雷达与通信系统的共存
Coexistence of Radar and Communication Systems in CBRS Bands Through Downlink Power Control
摘要：
公民宽带无线电服务频带（3550 - 3700 GHz）被视为能够提高无线宽带和蜂窝系统性能的关键频带之一。需要仔细研究与现役海军雷达共存的二次蜂窝通信系统所引起的干扰，以建立实用的保护距离，这不仅保护现役海军雷达免受有害干扰，而且还增加了二次系统的频谱接入机会。在此背景下，本文研究了舰载海军雷达和广域蜂窝通信系统的同频和邻频共存，并给出了不同的雷达保护距离值的蜂窝系统中的下行链路传输对海军雷达的干扰进行了分析。这种分析的结果表明，保持距离雷达30 km的保护距离将以> 0.9的概率确保雷达接收器处所需的-6 dB INR保护标准，即使当二次网络在与雷达相同的信道中操作时。还提出了将操作功率分配给共存的蜂窝设备的新颖的功率控制算法，以进一步减小与雷达的保护距离，同时仍然满足雷达INR保护要求。
英文摘要：
Citizen Broadband Radio Service band (3550 - 3700 GHz) is seen as one of the key frequency bands to enable improvements in performance of wireless broadband and cellular systems. A careful study of interference caused by a secondary cellular communication system coexisting with an incumbent naval radar is required to establish a pragmatic protection distance, which not only protects the incumbent from harmful interference but also increases the spectrum access opportunity for the secondary system. In this context, this paper investigates the co-channel and adjacent channel coexistence of a ship-borne naval radar and a wide-area cellular communication system and presents the analysis of interference caused by downlink transmission in the cellular system on the naval radar for different values of radar protection distance. The results of such analysis suggest that maintaining a protection distance of 30 km from the radar will ensure the required INR protection criterion of -6 dB at the radar receiver with > 0.9 probability, even when the secondary network operates in the same channel as the radar. Novel power control algorithms to assign operating powers to the coexisting cellular devices are also proposed to further reduce the protection distance from radar while still meeting the radar INR protection requirement.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
