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基于SVR插值的FBMC系统时变信道估计
杨心凯,袁伟娜
作者单位E-mail
杨心凯 华东理工大学信息科学与工程学院 hamchampion@163.com 
袁伟娜 华东理工大学信息科学与工程学院 wnyuan@ecust.edu.cn 
摘要:
5G候选技术FBMC比OFDM具有更优的频谱特性。然而引入了固有的虚部干扰,相应的信道估计也更复杂。本文提出了一种基于SVR插值的FBMC时变信道估计方法,该方法先采用辅助导频消除FBMC系统的虚部干扰,然后基于SVR进行时变信道插值。仿真结果表明,和传统算法相比,新方法在损失运算效率不大的情况下,对FBMC信道估计的效果有极大的改善,估计精度更高。
关键词:  FBMC,时变信道,信道估计,SVR
DOI:
分类号:TN929.5
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
A Time-Varying Channel Estimation based on the SVR-interpolation in FBMC Systems
YANG Xin-kai,YUAN Wei-na
Abstract:
The Filter Bank Multi-Carrier (FBMC), as a candidate system in 5G, has a better spectrum characteristic than the Orthogonal Frequency Division Multiplexing (OFDM). However, it brings the problem of the inherent imaginary interference, resulting in the increase of difficulties in channel estimation. In this paper, based on the SVR interpolation, a new method about the time-varying channel estimation of FBMC is proposed. The new method firstly uses auxiliary pilots to eliminate the imaginary interference, then interpolates the time-varying channel vector via SVR. The simulation results show that, compared to the traditional algorithms, the channel estimation effect of the newly proposed method is greatly improved with the little loss of efficiency, but has a higher estimation accuracy.
Key words:  FBMC, Time-varying  channel, Channel  Estimation, SVR

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