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Safety energy efficiency maximization power distribution method for millimeter wave NOMA system based on SWIPT

A technology of system safety and distribution method, which is applied in the field of power distribution to maximize safety and energy efficiency of millimeter-wave NOMA systems, can solve problems such as system energy efficiency issues that are not considered, and achieve good safety and energy efficiency.

Active Publication Date: 2021-07-02
ZHENGZHOU UNIVERSITY OF AERONAUTICS
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Problems solved by technology

However, at present, only research on how to improve the system security transmission rate has not considered the system energy efficiency

Method used

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  • Safety energy efficiency maximization power distribution method for millimeter wave NOMA system based on SWIPT
  • Safety energy efficiency maximization power distribution method for millimeter wave NOMA system based on SWIPT
  • Safety energy efficiency maximization power distribution method for millimeter wave NOMA system based on SWIPT

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Embodiment Construction

[0094] Specific examples are given below to further describe the technical solution of the present invention in a clear, complete and detailed manner. This embodiment is the best embodiment on the premise of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following embodiments.

[0095] A SWIPT-based method for maximizing power allocation in a millimeter-wave NOMA system with safe energy efficiency, including the following steps:

[0096] S1: Establish a downlink mmWave NOMA system model with eavesdropping users, the system model includes K legal users and 1 eavesdropping user, and the base station is configured with N RF RF chains and N TX Root antenna, each legitimate user is equipped with a power splitter, the power splitter converts a part of the received radio frequency signal into energy; among them, because the eavesdropping user channel is unpredictable, the eavesdropping user channel adds channe...

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Abstract

The invention discloses a safety energy efficiency maximization power distribution method for a millimeter wave NOMA system based on SWIPT, which is used for combining wireless energy-carrying communication with a millimeter wave large-scale MIMO-NOMA system based on hybrid precoding and analyzing a safety energy efficiency maximization power distribution problem when an eavesdropper exists in the system. The hybrid precoding is composed of digital precoding and analog precoding, an optimization problem with maximized safety energy efficiency is formed by combining SWIPT on this basis, and meanwhile, the total power limitation of legal users, the constraints of the user rate QoS and the collected energy QoS and the channel uncertainty of eavesdroppers are considered. Compared with a traditional digital coding system, the power distribution scheme provided by the invention is better in safety and energy efficiency.

Description

technical field [0001] The invention belongs to the technical field of radio transmission systems, and in particular relates to a SWIPT-based millimeter wave NOMA system security energy efficiency maximization power distribution method. Background technique [0002] At present, in 5G networks, the application of technologies such as millimeter wave, massive multiple input multiple output (MIMO, multiple input multiple output) and non-orthogonal multiple access (NOMA, non-orthogonal multiple access) can significantly improve the system performance of 5G networks. capacity and data rate. In addition, due to the severe attenuation of high-frequency millimeter waves, the system needs to be equipped with a large number of antennas and radio frequency chains to increase the signal transmission distance. However, a large number of antennas and radio frequency chains will lead to huge system power consumption. In the face of this problem, beamforming based on hybrid precoding can m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0456H04B7/0413
CPCH04B7/0456H04B7/0413Y02D30/70
Inventor 赵飞王毅张宏亮尤晓蕾
Owner ZHENGZHOU UNIVERSITY OF AERONAUTICS
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