一种基于深度学习的大规模MIMO检测方法
首发时间:2020-01-22
摘要:大规模多输入多输出检测技术(massive multipleinputand multipleoutput, massiveMIMO)是频谱感知中一个研究热点,也是现代无线通信系统中的关键技术。目前检测方法多使用基于规则的启发式算法,无法对信道信息进行建模,本文将深度学习应用于大规模多输入多输出系统中的信号检测。由于现有的检测算法或是算法复杂度较高,无法在实际系统中应用,或者是性能不能达到最优,无法满足现代无线通信系统如5G对频谱效率的需求。因此,本文提出一种基于深度学习的大规模MIMO检测算法,即优化的稀疏性连接网络(OptimizedSparsely Connected Network,O-ScNet)。与现有的深度学习算法相比,该算法优化了输入特征和损失函数。实验结论证明,O-ScNet算法可以更快地收敛,达到更好的实验效果。
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A Massive MIMO detection method based on deep learning
Abstract:Massive multiple input and multiple output(Massive MIMO) detection technology is a research hotspot in spectrum sensing. It is a key technology in modern wireless communication systems. At present, detection methods mostly use rule-based heuristic algorithms, which cannot model the channel information. This paper applies deep learning to signal detection in massive MIMO systems. There are many detection algorithms now which could not be applied in actual communication systems due to the high complexity. On the other hand, their performance cannot achieve optimal performance, so they cannot meet the requirements of modern wireless communication systems such as 5G for spectral efficiency. Therefore, a massive MIMO detection algorithm based on deep learning is proposed, that is Optimized Sparsely Connected Network(O-ScNet). Compared with prior deep learning algorithms, the proposed detection algorithm O-ScNet optimizes input features and loss functions. The simulations results show that the O-ScNet algorithm can converge faster and achieve better experimental results.
Keywords: Massive MIMO deep learning residential network loss function
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