An precoding method based on two-sided Jacobi SVD in MIMO PLC system

Dianzi Jishu Yingyong

Li Xiang¹  Lin Huan² 

[1] Key Lab of New Generation Broadband Mobile Communication Technology， Chongqing University of Posts and Telecommunications，Chongqing 400065，China;School of Communication and Information Engineering，Chongqing University of Posts and Telecommunications， Chongqing 400065，China;

关键词: power line communication;    MIMO;    two-sided Jacobi;    precoding;   

DOI  :  10.16157/j.issn.0258-7998.180166

来源: DOAJ

【 摘 要 】

In recent years, the MIMO technology has been paid extensive attention in the field of power line communication, which can enhance the system bit rate and spectrum efficiency without increasing bandwidth. The complexity of the inverse operation is too high for the traditional zero-forcing algorithm , so a precoding algorithm based on two-sided Jacobi SVD is proposed to reduce the computational complexity. Firstly, the real symmetric matrix is constructed. And then，the matrix is diagonalized by two-sided Jacobi transformation. Finally，Taylor series expansion is introduced to simplify the calculation process. The simulation results show that the algorithm can effectively improve the bit error rate performance without loss of calculation accuracy.

【 授权许可】

Unknown