An precoding method based on two-sided Jacobi SVD in MIMO PLC system
Lin Huan, Xiang Li · DOAJ (DOAJ: Directory of Open Access Journals) · 2018
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.