发表机构
School of Electrical and Electronics Engineering, Nanyang Technological University（南洋理工大学电气与电子工程学院）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出冷原子里德伯阵列（CoRA）结合子阵列调度时空复用（STM）与联合二项式粒子平滑器（JBPS），解决量子接收器死时间与非线性噪声问题，实现高灵敏度无线通信，并揭示灵敏度与可持续性的权衡。
AI 中文摘要
本文研究了一种有效的冷原子里德伯阵列（CoRA）架构，该架构解决了经典电磁学中的基本热噪声极限，以及传统热蒸气池原子接收器中的固有多普勒展宽和光子散粒噪声问题。然而，将基于CoRA的量子静电计转化为实用的无线通信接收器，受到宏观读出死时间和非线性二项式计数（而非传统接收器中的加性高斯基带样本）的瓶颈限制。为应对这些关键挑战并促进CoRA的实用性，本文首先提出了一种基于子阵列调度的时空复用（STM）框架，用于在允许的数据包内实现无间隙的符号查询。此外，提出了一种基于联合二项式粒子平滑器（JBPS）的信号检测方案，用于突发式状态和数据推断。进一步，推导了CoRA辅助无线通信中的弱信号量子投影噪声（QPN）极限和状态平均有限字母速率。数值结果表明：1）所提出的基于STM的CoRA方案解决了连续信号采样的宏观时间瓶颈；2）所提出的JBPS方法有效缓解了非线性噪声放大，实现了更低的误码率；3）性能分析揭示了基本的灵敏度-可持续性权衡，即增加原子数量有效抑制QPN，但同时降低了可持续的数据包重复率。
英文摘要
An effective Cold-Atom Rydberg Array (CoRA) architecture is investigated, which addresses the fundamental thermal noise limit in classical electromagnetics and intrinsic Doppler broadening as well as photon shot noise in conventional hot-vapor cell-based atomic receivers. However, translating the CoRA-based quantum electrometers into practical wireless communication receivers is bottlenecked by both the macroscopic readout dead-times and nonlinear binomial population counts rather than the additive-Gaussian baseband samples in conventional receivers. To address these critical challenges and facilitate the practicality of the CoRA, in this paper, a subarray scheduling-based spatiotemporal multiplexing (STM) framework is first proposed for gap-free symbol interrogation within an admitted packet. Additionally, a signal detection scheme based on a joint binomial particle smoother (JBPS) is proposed for burst-wise state and data inference. Furthermore, the weak-signal quantum-projection-noise (QPN) limit and the state-averaged finite-alphabet rate are derived for CoRA-assisted wireless communications. Numerical results demonstrate that: 1) The proposed STM-based CoRA scheme resolves the macroscopic temporal bottleneck for continuous signal sampling; 2) The proposed JBPS approach effectively mitigates the nonlinear noise amplification to achieve a lower bit error rate; and 3) Performance analysis reveals a fundamental sensitivity-sustainability tradeoff that increasing the number of atoms effectively suppresses the QPN, but simultaneously reduces the sustainable packet repetition rate.
