公开(公告)号：US11476908B2

公开(公告)日：2022-10-18

申请号：US17500890

申请日：2021-10-13

申请人： WUHAN UNIVERSITY

发明人： Yigang He ,  Tongtong Cheng ,  Yuan Huang ,  Liulu He

IPC分类号： H04B7/0456

摘要： A low-complexity precoding method for large-scale MIMO fast convergence is provided. The method includes the following steps: in step 1, starting a precoding procedure to initialize relevant parameters of an MIMO transmitting antenna; in step 2, accelerating a symmetric successive over-relaxation algorithm through a Chebyshev semi-iterative algorithm to complete a precoding inversion process according to the initialized parameters; and in step 3, generating a signal to be transmitted of the MIMO transmitting antenna according to a result of the iterative algorithm and ending the precoding procedure. Herein, the step of initializing the parameters includes parameter initialization and setting a number of transmitting antennas, a number of single-antenna users, and a channel transmission matrix. By calculating and comparing among the symbol error rates, transmission rates, and computational complexity of precoding, compared with theoretical values, the method provided by the disclosure exhibits faster convergence, lower complexity, and better performance.

公开(公告)号：US20220123802A1

公开(公告)日：2022-04-21

申请号：US17500890

申请日：2021-10-13

申请人： WUHAN UNIVERSITY

发明人： Yigang HE ,  Tongtong Cheng ,  Yuan HUANG ,  Liulu HE

IPC分类号： H04B7/0456

摘要： A low-complexity precoding method for large-scale MIMO fast convergence is provided. The method includes the following steps: in step 1, starting a precoding procedure to initialize relevant parameters of an MIMO transmitting antenna; in step 2, accelerating a symmetric successive over-relaxation algorithm through a Chebyshev semi-iterative algorithm to complete a precoding inversion process according to the initialized parameters; and in step 3, generating a signal to be transmitted of the MIMO transmitting antenna according to a result of the iterative algorithm and ending the precoding procedure. Herein, the step of initializing the parameters includes parameter initialization and setting a number of transmitting antennas, a number of single-antenna users, and a channel transmission matrix. By calculating and comparing among the symbol error rates, transmission rates, and computational complexity of precoding, compared with theoretical values, the method provided by the disclosure exhibits faster convergence, lower complexity, and better performance.