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Secure transmission method of millimeter waves

A secure transmission, millimeter wave technology, applied in the field of communication, can solve problems such as eavesdropping

Active Publication Date: 2021-06-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But in these analyzes the eavesdropper is static, and the eavesdropping ability is only determined by the distance from the eavesdropper to the base station
And only consider the case where the distribution of the common beam is continuous, but when there are obstacles in the space, the continuous distribution of the common beam scenario is no longer valid
In addition, it is a question whether all the beams are helpful to increase the security rate of the system, because the more beams selected, the greater the probability of being eavesdropped, although the more beams selected, the system rate will be increased, but not necessarily Will increase the system security rate

Method used

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  • Secure transmission method of millimeter waves
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Embodiment Construction

[0024] The practicality of the present invention is illustrated below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, it is a system security rate diagram, specifically comparing the security rate obtained by the dynamic beam method proposed by the present invention with the security rate of fixedly selecting a beam. Converges to a constant value, and fixedly chooses the beam with the largest beam gain, which will eventually make the security capacity zero due to eavesdropping. Fixedly choose a beam with the best beam state, and as time goes by, the security capacity will soon drop to zero, because fixedly using one beam to transmit data will make the eavesdropper keep getting closer, and finally successfully eavesdrop. The dynamic beam selection will adaptively adjust the selected beam, correct the system security rate at the current moment while considering the probability of being eavesdropped, select the optimal beam, and finally reach a...

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Abstract

The invention belongs to the field of communication, and particularly relates to a secure transmission method of millimeter waves. The method considers that a secure transmission scheme is designed in a scene that an eavesdropper has learning ability, so that the system security rate is maximum. According to the method, the Markov process is used for modeling the eavesdropping probability of the wave beam, and an optimal wave beam is selected for transmission at each moment, which is equivalent to that limited resources are used in the place with the highest benefit, so that the safety rate of the system reaches the maximum value.

Description

technical field [0001] The invention belongs to the field of communication, and in particular relates to a method for safe transmission of millimeter waves. Background technique [0002] Driven by the increasing number of smart devices and wireless data applications, the demand for wireless communication spectrum has exploded in the past few years. Using mmWave to provide abundant spectrum resources to improve system capacity is a promising method. Millimeter wave refers to electromagnetic waves with a frequency of 30-300 GHz. Millimeter wave communication is a typical communication technology with high-quality, constant parameter wireless transmission channels, which can well meet the needs of future communication. Research on mmWave communication has attracted a lot of attention in academia. Over the past few years, mmWave channel modeling, beamforming schemes, and network performance have been intensively studied. Therefore, mmWave communication is very promising to be...

Claims

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Application Information

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IPC IPC(8): H04B7/06H04B7/08H04L29/06
CPCH04B7/0695H04B7/088H04L63/1475
Inventor 伍怡余代中王志强李强
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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