A Novel Space-Time Coding Architecture for Rydberg Atomic Quantum Receiver-Based Systems

2026-09-01

AI Summary

为解决Rydberg原子量子接收器与传统MIMO处理不兼容的问题，提出了一种低复杂度的空间-时间编码架构，采用实正交设计和强参考外差接收方法。

Abstract

Rydberg atomic quantum receivers (RAQRs) offer high sensitivity and wide tunability, but their magnitude-based readout yields a nonlinear model incompatible with conventional complex-valued multi-input multi-output (MIMO) processing. We propose a low-complexity space-time coding framework for point-to-point RAQR-assisted MIMO links. Data symbols are encoded using real orthogonal designs, while strong-reference heterodyne reception yields an equivalent real-valued linear model. The preserved orthogonality enables matched filter symbol-wise detection without matrix inversion or vector search. An analytical bit error probability expression is derived, proving the proposed scheme achieves the full transmit-receive diversity. Simulations validate the analysis and demonstrate improved performance over spatial multiplexing benchmarks.

Problem

• Rydberg Atomic Quantum Receivers
• Nonlinear Model
• MIMO Processing
• Magnitude-based Readout

Innovation

• Space-time coding
• Rydberg atomic quantum receivers
• Real orthogonal designs
• Heterodyne reception
• Matched filter detection