通过基于注意力和CNN特征的融合来进行合作频谱传感的多分支网络
Doi Thi Lan1, Quan T Ngo2, Luong Vuong Nguyen2
1Faculty of Radio and Electronic Engineering, Le Quy Don Technical University, Hanoi, 10065, Vietnam.
Scientific reports
|January 13, 2026
概括
本研究介绍了ATC模型,这是一种新的深度学习方法,用于认知无线电 (CR) 系统中准确的频谱传感. 该模型增强了频谱孔检测,提高了复杂环境中的效率,多个主要用户 (PU).
科学领域:
- 电气工程 电气工程
- 计算机科学 计算机科学
- 信号处理 信号处理
背景情况:
- 在认知无线电 (CR) 系统中,高效的频谱利用依赖于精确的频谱孔检测.
- 具有多个主要用户 (PU) 的越来越复杂的CR环境对精确的频谱传感构成重大挑战.
- 现有的方法很难捕捉动态环境中传感信号的复杂的空间和时间特征.
研究的目的:
- 介绍ATC模型,一种用于增强频谱传感的新型深度学习架构.
- 在复杂的CR环境中提高频谱洞检测的准确性和稳定性.
- 从传感信号中有效捕获空间和时间特征,以更好地检测频谱状态.
主要方法:
- 开发了一种混合深度学习架构 (ATC模型),结合了注意力机制和卷积神经网络 (CNN).
- 使用图表注意网络 (GAT) 来从接收的信号强度数据中提取拓特征.
- 利用CNN来处理样本共变矩阵以查找局部统计相关性和层次特征.
- 整合了一个具有自我注意力的变压器编码器来模拟时间动态和PU活动模式.
主要成果:
- 在模拟的多PU场景中,ATC模型表现出比基准频谱传感方法更好的性能.
- 对模拟和现实数据集的评估显示出更高的准确性和稳定性.
- 该模型有效地捕捉空间,时间和拓特征,以增强频谱状态检测.
结论:
- 拟议的ATC模型为认知无线电系统的频谱传感提供了重大进展.
- 混合深度学习方法有效地解决了复杂的CR环境和多个PU所带来的挑战.
- 空中交通管制模型为高效的频谱利用提供了强大而准确的解决方案.
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