低复杂度单载波时域均衡算法
Low-complexity single carrier time domain equalization algorithm
何世文 1官沛雯 2彭丞佐 2邓训喆 2安振宇3
作者信息
- 1. 新疆大学软件学院,新疆 乌鲁木齐 830049;中南大学计算机学院,湖南 长沙 410083;紫金山实验室,江苏 南京 211111
- 2. 中南大学计算机学院,湖南 长沙 410083
- 3. 紫金山实验室,江苏 南京 211111
- 折叠
摘要
由于卫星通信体制的约束,接收机信号处理在时域进行,致使传统信道均衡算法面临高维矩阵求逆困境.充分利用Toeplitz矩阵的特殊结构和连续干扰消除思想,提出了一种低复杂度单载波时域均衡算法,将高维信道均衡系统转换成多个低维信道均衡系统,依次对低维信道均衡系统进行均衡,从而避免对高维矩阵求逆操作.实验结果表明,与传统信道均衡算法相比,所提算法能以更低的计算复杂度实现更相近甚至更优的误码性能.
Abstract
Due to the constraints of the satellite communication systems,the receiver signal processing was carried out in the time domain,which made traditional channel equalization algorithms face the challenge of high-dimensional matrix in-version.Taking full advantage of the special structure of Toeplitz matrix and the idea of successive interference cancella-tion,a low-complexity single carrier time domain equalization algorithm was proposed to avoid high-dimensional matrix in-version,by converting the high-dimensional channel equalization system into multiple low-dimensional channel equaliza-tion systems and performing channel equalization successively.Simulation results show that compared with the traditional channel equalization algorithms,the proposed algorithm can achieve similar or better performance with lower complexity.
关键词
卫星通信/单载波时域均衡/Toeplitz矩阵/连续干扰消除/高维矩阵求逆Key words
satellite communication/single carrier time domain equalization/Toeplitz matrix/successive interference cancellation/high-dimensional matrix inversion引用本文复制引用
基金项目
国家重点研发计划基金资助项目(2023YFB2504700)
国家自然科学基金资助项目(62171474)
出版年
2024
国家科技期刊平台
NSTL
万方数据