arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2208.04033eess.SPcs.ITcs.LGmath.IT
收藏

硬件损伤下的信道估计:贝叶斯方法与深度学习

Channel Estimation under Hardware Impairments: Bayesian Methods versus Deep Learning

Linköping University(林雪平大学)

Özlem Tugfe Demir, Emil Björnson

摘要:

本文考虑了多天线基站和用户设备中的一般硬件损伤对上行链路性能的影响。首先,有效的渠道解析推导失真感知接收机时,使用有限大小的信号星座。接下来,设计并训练深度前馈神经网络来估计有效信道。它的性能进行了比较与国家的最先进的失真感知和不知道贝叶斯线性最小均方误差(LMMSE)估计。所提出的深度学习方法通过利用损伤特征来提高估计质量,而LMMSE方法将失真视为噪声。

英文摘要:

This paper considers the impact of general hardware impairments in a multiple-antenna base station and user equipments on the uplink performance. First, the effective channels are analytically derived for distortion-aware receivers when using finite-sized signal constellations. Next, a deep feedforward neural network is designed and trained to estimate the effective channels. Its performance is compared with state-of-the-art distortion-aware and unaware Bayesian linear minimum mean-squared error (LMMSE) estimators. The proposed deep learning approach improves the estimation quality by exploiting impairment characteristics, while LMMSE methods treat distortion as noise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑