发表机构
Aalborg University（奥尔堡大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出BER感知的里德伯原子量子接收机联合参数优化框架，推导闭式SNR/BER表达式，通过定点分块更新优化工作点，显著提升低功率接收、带宽利用和覆盖等通信性能。
AI 中文摘要
里德伯原子量子接收机（RAQRs）提供高灵敏度的射频接收，但其通信性能联合依赖于原子响应、光学转换、接收机噪声、带宽和无线信道条件。本文开发了一个BER感知的通信理论框架，用于超外差RAQR辅助的无线通信，将四能级里德伯原子动力学和相干光检测与多径传播和数字通信性能联系起来。针对相关瑞利衰落下的方形格雷编码$M$-QAM，推导了闭式瞬时和平均信噪比（SNR）及误码率（BER）表达式。然后，在物理和带宽约束下，通过定点过程中的解析分块更新，对原子、光学、射频和几何参数联合优化RAQR工作点。数值结果表明，与传统、先进和定点RAQR接收机相比，在低功率接收、带宽利用、对失谐、衰落和时延扩展的鲁棒性、中断和通信覆盖方面有显著增益。结果表明，BER感知的联合优化将里德伯原子传感的内在灵敏度转化为切实的通信层面增益。
英文摘要
Rydberg-atom quantum receivers (RAQRs) offer highly sensitive RF reception, but their communication performance depends jointly on atomic response, optical transduction, receiver noise, bandwidth, and wireless-channel conditions. This paper develops a BER-aware communication-theoretic framework for superheterodyne RAQR-assisted wireless communication, linking four-level Rydberg-atom dynamics and coherent optical detection to multipath propagation and digital communication performance. Closed-form instantaneous and average SNR and BER expressions are derived for square Gray-coded $M$-QAM over correlated Rayleigh fading. The RAQR operating point is then jointly optimized over atomic, optical, RF, and geometric parameters using analytical block-wise updates within a fixed-point procedure subject to physical and bandwidth constraints. Numerical results demonstrate substantial gains in low-power reception, bandwidth utilization, robustness to detuning, fading and delay spread, outage, and communication coverage compared with conventional, advanced, and fixed-point RAQR receivers. The results demonstrate that BER-aware joint optimization translates the intrinsic sensitivity of Rydberg-atom sensing into tangible communication-level gains.
