光通信研究Issue(1)：72-74,3.DOI:10.13756/j.gtxyj.2015.01.022
LTE-A 基于压缩感知的信道估计
Compressed sensing-based channel estimation for LTE-A systems
王波 1李贵勇1
作者信息
- 1. 重庆邮电大学 通信与信息工程学院，重庆 400065
- 折叠
摘要
Abstract
In view of the characteristics of the two-dimensional sparse channel of the time and frequency domains of the LTE-A systems in Doppler environment and in line with the distribution of pilot in the time and frequency domains and its correlation with them,this paper presents an Orthogonal Matching Pursuit (OMP)algorithm-based improved compressed sensing channel estimation by decomposing the search space into ranges between OFDM symbols in time domain and between subcarriers in fre-quency domain.Simulation results show that the improved OMP algorithm has still lower Mean Square Error (MSE)than the original one.关键词
压缩感知/信道估计/正交匹配追踪Key words
compressed sensing/channel estimation/OMP分类
信息技术与安全科学引用本文复制引用
王波,李贵勇..LTE-A 基于压缩感知的信道估计[J].光通信研究,2015,(1):72-74,3.
