西安电子科技大学学报 ›› 2020, Vol. 47 ›› Issue (6): 91-98.doi: 10.19665/j.issn1001-2400.2020.06.014

• 面对B5G/6G的信息传输与接入技术进展 • 上一篇    下一篇

一种辅助导频幅度可调的FBMC信道估计方案

赵清华(),马天鸣(),王星   

  1. 上海工程技术大学 电子电气工程学院,上海 201620
  • 收稿日期:2020-06-28 出版日期:2020-12-20 发布日期:2021-01-06
  • 通讯作者: 马天鸣
  • 作者简介:赵清华(1994—),男,上海工程技术大学硕士研究生,E-mail: zhao872907097@163.com
  • 基金资助:
    国家自然科学基金(61601296);国家自然科学基金(61701295);国家自然科学基金(61801286);上海工程技术大学研究生科研创新项目(19KY0215)

Scheme for FBMC channel estimation with a variable amplitude of the auxiliary pilot

ZHAO Qinghua(),MA Tianming(),WANG Xing   

  1. School of Electrical and Electronic Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
  • Received:2020-06-28 Online:2020-12-20 Published:2021-01-06
  • Contact: Tianming MA

摘要:

提出了一种可变幅值的辅助导频滤波器组多载波信道估计方案,将传统放在辅助导频位置处的辅助项直接叠加在导频上,并将已知数据填入辅助导频位置处,以此来解决传统辅助导频法中辅助项功率过高的问题。理论分析和仿真结果表明,与编码辅助导频法和双辅助导频法相比,该方案在采用单辅助导频时能够在确保误码率性能不受影响的同时获得更高的频谱利用率,并有效地降低辅助导频位置处的功率,而且在计算复杂度上仅次于双辅助导频法。而当采用双可调辅助导频时,该方案则可以进一步提升信道的估计精度和误码率性能。

关键词: 滤波器组多载波, 干扰消除, 干扰利用, 信道估计, 辅助导频可变

Abstract:

A Variable Amplitude Auxiliary Pilot (VAAP) channel estimation scheme for the FBMC (Filter Bank Multicarrier) is put forward, which adds the auxiliary items in the AP positions directly to the pilots and fills the known data into the AP positions to solve the problem of excessive power of the auxiliary items in the conventional AP method. Theoretical analysis and simulation results demonstrate that compared with the Code Auxiliary Pilot (CAP) method and Double Auxiliary Pilot (DAP) method, when applying a single AP, the presented scheme can achieve a higher spectrum efficiency and reduce the power of AP positions effectively with no influence of the BER (Bit Error Rate) and it is second only to the AP method in computational complexity. By adopting the dual tunable AP, our proposed scheme can further improve the performance of the estimation accuracy and BER.

Key words: filter bank multicarrier, interference remove, interference using, channel estimation, auxiliary pilot variable

中图分类号: 

  • TN92