Telecommunications Science ›› 2024, Vol. 40 ›› Issue (3): 39-52.doi: 10.11959/j.issn.1000-0801.2024069
• Research and Development • Previous Articles
Yuanzhi LU1, Xianglin WEI2, Long YU2, Changhua YAO1
Revised:
2023-12-22
Online:
2024-03-01
Published:
2024-03-01
Supported by:
CLC Number:
Yuanzhi LU, Xianglin WEI, Long YU, Changhua YAO. 5G OFDM channel estimation method based on complexvalued generative adversarial network[J]. Telecommunications Science, 2024, 40(3): 39-52.
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应用场景 | 文献 | 方法 | 网络结构 | 特点 | 优势 |
OFDM | [3] | 基于CNN | 超分辨率网络+图像去噪网络 | 利用图像处理技术还原时频衰落矩阵 | 提高信道估计准确性 |
[8] | 基于DNN | 深度神经网络 | 将信道和调制视为“黑盒子”,实现隐式的CSI估计 | 降低复杂度,提高信道估计性能 | |
MIMO | [4] | DenseNet | 密集卷积层构建的DenseNet | 利用DenseNet重建信道脉冲响应 | 提升信道估计性能,重建高分辨率信道响应 |
[10] | 基于DNN | DNN隐藏层分解为参数更少的张量 | 降低硬件需求和运行时间,适用于复杂场景 | 适应MIMO系统 | |
MIMO-OFDM | [6] | CNN自编码器 | 基于CNNAE构建的分类器 | 利用自编码器对MIMO信道进行估计 | 有效估计MIMO-OFDM信道 |
5G NR | [7] | 基于CNN | 融合残差链接的卷积神经网络 | 将信道矩阵视为图像,结合残差链接,采用图像恢复的方法进行估计 | 适应5G NR标准,提高信道估计精度 |
高速移动环境 | [11] | 基于RNN | 双向长短期记忆网络 | 使用BiLSTM网络估计时变信道 | 适应高速环境下的信道估计,学习快速时变和非平稳信道等 |
大规模MIMO | [13] | CGAN | 使用U-net作为生成器 | 学习从量化观测值到真实信道的映射 | 提高信道估计精度,复杂度相对较低,具有鲁棒性 |
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