1st International ICST Conference on Communications and Networking in China

Research Article

A Novel Approach for MIMO Adaptive Equalization Based on Affine Projection Algorithm

  • @INPROCEEDINGS{10.1109/CHINACOM.2006.344651,
        author={Guanghui  He  and  Zucheng  Zhou},
        title={A Novel Approach for MIMO Adaptive Equalization Based on Affine Projection Algorithm},
        proceedings={1st International ICST Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2007},
        month={4},
        keywords={},
        doi={10.1109/CHINACOM.2006.344651}
    }
    
  • Guanghui He
    Zucheng Zhou
    Year: 2007
    A Novel Approach for MIMO Adaptive Equalization Based on Affine Projection Algorithm
    CHINACOM
    IEEE
    DOI: 10.1109/CHINACOM.2006.344651
Guanghui He 1,*, Zucheng Zhou1
  • 1: Dept. of Electronic Engineering, Tsinghua University, Beijing 100084, China
*Contact email: hgh02@mails.tsinghua.edu.cn

Abstract

In this paper, a reduced complexity adaptive decision feedback equalization approach based on affine projection algorithm (APA) is proposed for multiple-input multiple-output (MIMO) time-varying frequency selective channels. Computational complexities of APA-based adaptive decision feedback equalization (AP-DFE), least mean-squares (LMS-DFE) and recursive least squares (RLS-DFE) algorithms are compared. The proposed technique provides fast convergence speed and low computational complexity. Simulation results show that AP-DFE adaptive equalization algorithm outperforms LMS-DFE algorithm and can obtain significant computation saving over RLS-DFE algorithm with approximately the same BER performance.