A method and device for millimeter-wave wireless portable energy secure communication

A wireless energy carrying and secure communication technology, applied in the field of communication, to achieve the effect of maximizing the confidentiality rate

Active Publication Date: 2021-12-31
ZHENGZHOU UNIV
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Problems solved by technology

Therefore, a large number of antennas will cause immeasurable hardware loss and energy consumption

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  • A method and device for millimeter-wave wireless portable energy secure communication
  • A method and device for millimeter-wave wireless portable energy secure communication
  • A method and device for millimeter-wave wireless portable energy secure communication

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[0108] In order to make the objects, technical solutions, and advantages of the present invention more clearly, the technical solutions in the embodiments of the present invention will be described in contemplation in the embodiment of the present invention. It is only a part of the embodiments of the invention, not all of the embodiments. Based on embodiments of the present invention, those of ordinary skill in the art are protected by the present invention without making creative labor premistence.

[0109] The present invention provides a method and apparatus for providing a millimeter wave wireless portable safety communication method. In the case where nonlinear energy acquisition and maximum transmit power constraints are proposed, the joint optimization problem of digital precoding vectors, power splitting rates, and artificial noise covariance matrices is proposed to maximize system confidentiality. like figure 2 As shown, the method includes the steps of:

[0110] S1: Imp...

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Abstract

The present invention relates to a millimeter-wave wireless energy-carrying security communication method and device, to maximize the security rate of the system, including: S1: using a B-bit quantization phase shifter in the full connection and sub-connection structures to realize analog precoding; S2: Construct the joint optimization problem of digital precoding vector, power splitting ratio and artificial noise covariance matrix; S3: propose an alternating optimization algorithm based on semidefinite relaxation to find the suboptimal solution; S4: propose an alternating optimization algorithm based on zero-forcing precoding Optimized algorithms reduce complexity. The present invention combines the millimeter wave and SWIPT, and proposes a method and device for maximizing the confidentiality rate based on the millimeter wave SWIPT. Millimeter waves can fill more antennas with a smaller physical size; in a multi-user system, SWIPT interference power is converted into energy at the receiving end, which can improve energy efficiency; using analog / digital hybrid precoding, the required number of RF chains much smaller than the number of antennas.

Description

Technical field [0001] The present invention relates to the field of communication technology, and more particularly to a millimeter wave wireless portable safety communication method and apparatus. Background technique [0002] In recent years, millimeter wave (MMWave) large-scale multi-input multi-output (MMIMO) is considered to be a very promising technology in future wireless communication. In the previously studied MIMO system, a dedicated radio frequency (RF) chain is required to connect each antenna. Therefore, a large number of antennas can cause unrecivible hardware loss and energy consumption. Mixed precoding (HP) has been proposed to solve this problem. There are two HP architectures: full connection and sub-connection. Two architectures are compared, higher spectrum efficiency (SE) can be achieved in the full attachment architecture, while higher energy efficiency (EE) is achieved in the secondary connection architecture. [0003] Specifically, the wireless informatio...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0413H04B7/0456
CPCH04B7/0413H04B7/0456Y02D30/70
Inventor 朱政宇郝万明孙钢灿马梦园王忠勇刘沛佳申凌峰赵飞
Owner ZHENGZHOU UNIV
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