κ-μ衰落信道下的流体天线系统开关型数字噪声调制
On-Off Digital Noise Modulation with Fluid Antenna Systems over $κ$-$μ$ Fading Channels
AI总结：
本文将开关型数字噪声调制与流体天线系统融合，推导了κ-μ衰落信道下的平均误比特率表达式，验证其可提升OODN传输可靠性，为高能效IoT通信提供新方向。
AI中文摘要：
本文提出将开关型数字噪声（OODN）调制与流体天线系统（FAS）相融合，构建了统一分析框架以评估FAS辅助的OODN接收机在加性高斯白噪声及广义κ-μ衰落信道下的性能。分析过程纳入了流体天线端口选择、可用端口数量及空间相关性因素，推导了平均误比特率的解析表达式并表征了可实现的分集阶数，所有表达式均通过蒙特卡洛仿真验证。结果表明，FAS提供的空间分集可显著提升OODN传输的可靠性，同时保留其固有的低复杂度、非相干操作特性且无需载波相位恢复。该框架为高能效物联网（IoT）及机器型通信系统开辟了新的研究方向。
英文摘要：
This letter proposes the integration of on-off digital noise (OODN) modulation with fluid antenna systems (FASs). A unified analytical framework is developed to evaluate the performance of FAS- assisted OODN receivers over additive white Gaussian noise and generalized \k{appa}-μ fading channels. The analysis incorporates fluid antenna port selection, the number of available ports, and spatial correlation. Analytical expressions for the average bit error probability are derived and the achievable diversity order is characterized. All expressions are validated through Monte Carlo simulations. Results demonstrate that the spatial diversity provided by the FAS significantly enhances the reliability of OODN transmissions while preserving their inherent low-complexity, non-coherent operation without carrier-phase recovery. The proposed framework establishes a new research direction for energy-efficient Internet of Things (IoT) and machine-type communication systems.
