Large-scale MIMO beam domain's secure communication method

A security communication and beam domain technology, applied in the field of massive MIMO beam domain security communication, can solve the problems of difficult to obtain a global optimal solution, high implementation complexity, reduce implementation complexity, improve power efficiency and spectral efficiency, The effect of ensuring safety

Active Publication Date: 2017-10-24
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For this type of problem, since the objective function is a non-convex function, it is usually difficult to obtain a global optimal solution
And wh

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  • Large-scale MIMO beam domain's secure communication method
  • Large-scale MIMO beam domain's secure communication method
  • Large-scale MIMO beam domain's secure communication method

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Embodiment Construction

[0025] A massive MIMO beam domain secure communication method, comprising the following steps:

[0026] (1) The base station generates a beam set that can cover the entire cell through analog multi-beamforming or digital multi-beamforming or analog and digital hybrid beamforming, and the base station performs beam-domain secure communication with legitimate users on the generated beams; (2) The base station uses the beam-domain statistical channel information of legitimate users and eavesdropping users to allocate the power of the transmitted signal, or the base station allocates different beams or beam subsets for each legal user to communicate through the beam-domain statistical channel information of legitimate users and eavesdropping users.

[0027] In step (1), the base station side configures an antenna array composed of a large number of antennas. The base station generates a large-scale beam set that can cover the entire cell through analog multi-beamforming or digital ...

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Abstract

The invention discloses a large-scale MIMO beam domain's secure communication method, comprising the following steps: 1) a base station generates a beam set that covers an entire community through a simulation multi-beam forming method or a digital multi-beam forming method or a simulation-and-digital-mixed beam forming method, wherein the base station carries out beam domain's secure communication with valid users on the generated beams; and 2) the base station utilizes the beam domain statistic channel information of the valid users and the eavesdropping users to perform power distribution to transmission signals; or the base station distributes different beams or beam sub-sets to each valid user for communications through the beam domain statistic channel information of the valid users and the eavesdropping users. The method of the invention ensures the security of wireless communications, and at the same time, the method is suitable for a time division duplex and frequency division duplex system to obtain a near-optimal power distribution performance.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a massive MIMO beam domain secure communication method. Background technique [0002] In order to adapt to the rapid growth of mobile communication traffic, in the case of limited spectrum resources, the use of massive MIMO technology can greatly improve the power efficiency and spectrum efficiency of wireless communication systems. At the same time, due to the openness of wireless networks, how to ensure the security of information transmission has become one of the problems to be solved in wireless communication systems. With the improvement of computer computing power and computing speed, traditional network layer encryption methods are no longer reliable. As a supplement or replacement of encryption methods, physical layer security methods aim to improve the security of wireless communication systems from the perspective of information theory. [0003] In massive MIMO...

Claims

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Application Information

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IPC IPC(8): H04B7/0426H04B7/06
CPCH04B7/0426H04B7/043H04B7/0443H04B7/0617H04B7/0639H04B7/0663Y02D30/70
Inventor 高西奇吴文谦
Owner SOUTHEAST UNIV
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