WANG Anyi,ZHU Tao,GONG Jianchao.Cooperative spectrum sensing method based on residual attention dense network[J].Telecommunications Science,2025,41(02):84-94.
针对基于卷积神经网络(convolutional neural network,CNN)的协作频谱感知算法存在的网络结构简单、特征提取能力不足和感知性能下降等问题,提出了一种基于残差注意力密集网络(residual attention dense network,RADN)的协作频谱感知算法。该算法通过改进基础残差块,从感受野、通道和空间3个维度引入注意力机制,结合残差连接和密集连接,构建了强大的深层特征提取结构——密集残差(residual in dense,RID),显著提升了网络的特征提取能力和频谱感知性能。实验结果表明,相较于传统深度学习方法,RADN算法在低信噪比(signal-to-noise ratio,SNR)条件下表现出显著的性能提升。该方法不仅能够适应多种调制方式,还具备较高的检测概率和良好的鲁棒性。
Abstract
To address the limitations of cooperative spectrum sensing algorithms based on convolutional neural network (CNN)
including simple network structures
insufficient feature extraction
and reduced sensing performance
a cooperative spectrum sensing algorithm based on residual attention dense network (RADN) was proposed. The basic residual block was enhanced and attention mechanisms across receptive field
channel
and spatial dimensions were introduced. By integrating residual and dense connections
a powerful deep feature extraction framework was formed
which was termed residual in dense (RID)
its feature extraction and sensing performance had been significantly boosted. Experimental results show that under low signal-to-noise ratio (SNR) conditions
the RADN algorithm outperforms traditional deep learning methods
adapting well to various modulation schemes and achieving high detection probability and robustness.
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