Method for improving system performance in cellular-removed large-scale MIMO (Multiple Input Multiple Output) system

• Main Authors: YANG LONGXIANG, NOH JUN-HO
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses a method for improving system performance in a cellular-removed large-scale MIMO system, and the method comprises the steps: building a channel estimation model from a mobile terminal to a wireless access point, obtaining an uplink vector received by the wireless access point and a received signal, and then obtaining a signal received by a central processing unit; and the uplink and rate of the system are further obtained. Constructing an uplink and rate maximization problem P1 according to the power control factor, and converting the problem P1 into a convex optimization problem P2; solving the convex optimization problem P2 by using a Lagrange function to obtain a first optimal power control factor; solving the convex optimization problem P2 through a preset method B to obtain a second optimal power control factor; and comparing the first optimal power control factor with the second optimal power control factor under the same hardware condition to obtain a final optimal power control