高技术通讯2025，Vol.35Issue(1)：9-19,11.DOI:10.3772/j.issn.1002-0470.2025.01.002
基于相关矩阵Toeplitz特性的5G终端基带信道估计算法设计
A novel channel estimation algorithm based on the Toeplitz correlation matrices for 5 G terminal baseband processing
摘要
Abstract
The increasing demand for high-speed,low-latency,and high-reliability mobile communication processing in 5-th generation mobile communication technology(5G)networks poses challenges to the design of high-perform-ance and low-complexity for terminal baseband channel estimation algorithms,as well as to the dynamic range of matrix processing.To solve this problem,a channel estimation algorithm based on the Toeplitz feature of channel correlation matrix is proposed.Calculate the channel correlation matrix according to the coherent bandwidth charac-teristics of the channel and retain the necessary lower matrix order.Design a low-complexity recursive matrix inver-sion algorithm based on the Toeplitz property of the correlation matrix.In view of the element repetition in the weighted matrix multiplication,simplify the matrix multiplication to element-wise multiplication to streamline the weighted matrix operation.Furthermore,a factor tracking the change of the signal-to-noise ratio is introduced to scale and compensate the process and the result of matrix operation respectively.Theoretical analysis and experi-mental results indicate that the proposed algorithm not only reduces the overall computational resources consump-tion,but also dramatically reduces the dynamic range of matrix-processing,while keeping perfect channel estima-tion performance.关键词
5G终端基带/信道估计/均方根/托普利兹/动态范围Key words
5G terminal baseband processing/channel estimation/root mean-square(RMS)/Toeplitz/dy-namic range引用本文复制引用
冯雪林,石晶林,戴曼,刘林..基于相关矩阵Toeplitz特性的5G终端基带信道估计算法设计[J].高技术通讯,2025,35(1):9-19,11.基金项目
工信部2020年工业互联网创新发展工程(GHBJ2004)资助项目. （GHBJ2004）
