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Data security transmission method and system based on visible light channel

A data security and transmission method technology, applied in the field of data transmission, can solve the problems of low data transmission accuracy and high bit error rate, and achieve the effect of reducing the transmission bit error rate

Inactive Publication Date: 2020-11-13
ANHUI JIYUAN SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the VLC circuit receives the optical data signal and converts it into an electrical signal for transmission, its channel state is dynamically variable and unpredictable, resulting in a high bit error rate in the data transmission process, which makes the accuracy of data transmission low.

Method used

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  • Data security transmission method and system based on visible light channel
  • Data security transmission method and system based on visible light channel
  • Data security transmission method and system based on visible light channel

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Embodiment Construction

[0050] In the following, the technical solution of the present invention will be described in detail through specific embodiments, and many specific details are set forth in the following description so as to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0051] Such as figure 1 As shown, the present invention proposes a data security transmission method based on a visible light channel, including:

[0052] S1: The transmitter generates the signal to be transmitted, and converts the signal to be transmitted into a vector of the transmitted signal;

[0053] The transmitting end first generates a transmitting signal for transmission to the receiving end, so that the rece...

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Abstract

The invention discloses a data security transmission method and system based on a visible light channel. The method comprises the steps that a transmitting end generates a to-be-transmitted signal, and converts the to-be-transmitted signal into a transmitting signal vector; the transmitting signal vector is sent to an optimized visible light channel model, wherein the visible light channel model comprises orthogonal frequency division multiplexing and a coding matrix; orthogonal frequency division multiplexing is performed on the transmitting signal vector to obtain a time domain ACO-OFDM signal vector s; the time domain ACO-OFDM signal vector s is pre-coded through a coding matrix to obtain optimized to-be-transmitted data; the to-be-transmitted data is sent to a receiving end through a visible light multipath channel so as to complete data transmission; through the transmission method, safe and stable data interaction between the transmitting end and the receiving end through the visible light channel is realized.

Description

technical field [0001] The present invention relates to the technical field of data transmission, in particular to a method and system for secure data transmission based on a visible light channel. Background technique [0002] With the development of cross-network business, the amount of data cross-network transmission interaction is increasing, while traditional network gate isolation transmission devices such as CD-ROM ferry machines, U disk transmission devices, etc. are subject to their own transmission rate and low security factors influence, has been unable to keep up with the pace of cross-network development. Therefore, we urgently need a low-cost, high-speed, high-security transmission medium that can give full play to its superior performance to meet the needs of Internet data transmission. [0003] With the advent and development of LED technology, its luminous efficiency and light intensity far exceed those of incandescent lamps, covering the entire visible spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116H04L25/03H04L27/26H04L27/34H04L27/36G06N3/12H04B10/516H04B10/54H04B10/556
CPCG06N3/126H04B10/116H04B10/5161H04B10/541H04B10/5561H04L25/0391H04L27/2607H04L27/2628H04L27/265H04L27/34H04L27/367
Inventor 李志高文俊李林懋戴聿雯王松林
Owner ANHUI JIYUAN SOFTWARE CO LTD
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