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A Method of Using Error Correction Coding Technology to Reconstruct Source Data to Realize One-way Transmission

An error correction coding, one-way transmission technology, applied in the field of data transmission, can solve the problems of increasing data packet redundancy, reducing transmission efficiency, wasting bandwidth, etc.

Active Publication Date: 2020-11-24
北京光润通科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to ensure the reliability of data transmission in the channel, the sending end needs to perform forward error correction coding on the data to be sent, generate multiple redundant packets, and then send them to the receiving end, and the receiving end can Automatically correct errors in transmission, but this method increases the redundancy of data packets, reduces the efficiency of transmission, and wastes a part of bandwidth

Method used

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  • A Method of Using Error Correction Coding Technology to Reconstruct Source Data to Realize One-way Transmission
  • A Method of Using Error Correction Coding Technology to Reconstruct Source Data to Realize One-way Transmission
  • A Method of Using Error Correction Coding Technology to Reconstruct Source Data to Realize One-way Transmission

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Experimental program
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Embodiment 1

[0045] Embodiment 1 of the present invention provides a method for reconstructing source data using error correction coding technology to realize one-way transmission, such as figure 1 As shown, the method includes the following steps:

[0046] S1: The sender divides the data to be sent into n information packets of equal-length information sequences;

[0047] S2: Generate an error detection code for each information data packet according to the error correction coding technology, and form an encoding packet with the information data packet and the error detection code, and number the encoding packet so that each encoding packet has a unique number;

[0048] S3: The sending end sends an encoded packet to the receiving end through the first channel every predetermined time t;

[0049] S4: The receiving end caches the received encoded packets, performs error detection and decoding on the encoded packets, and starts from the first decoded encoded packet to determine whether ther...

Embodiment 2

[0055] Embodiment 2 of the present invention provides a method of applying error correction coding technology to reconstruct source data to realize one-way transmission. This method is basically the same as Embodiment 1. The difference is that step S6 also includes: judging the first channel at the current moment Whether it is occupied, if so, clear the first channel. When it is found that the second channel is occupied, it is further judged whether the first channel is occupied, and if so, the first channel is cleared to ensure the efficiency of redundant packet transmission.

Embodiment 3

[0057] Embodiment 3 of the present invention provides a method for reconstructing source data using error correction coding technology to realize one-way transmission. This method is basically the same as Embodiment 1. The difference is that, as figure 2 As shown, the specific method of step S5 is:

[0058] S51: Judging the size of the Hamming weight W and 1 in detection and decoding, when W=1, proceed to step S52, and when W>1, proceed to step S53;

[0059] S52: The receiving end sends an empty data packet to the application layer through the second channel;

[0060] S53: The receiving end continues t through the second channel 1 Time to send an empty packet to the application layer.

[0061] The present invention further limits step S5, wherein the Hamming weight is the number of random errors; the present invention judges the number of data packets sent through the second channel according to the number of random errors, and then selects the encoding technology for the s...

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PUM

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Abstract

The invention provides a method for reconstructing source end data to realize unidirectional direction through application of an error correction coding technology. The method comprises the steps thatdata is sent through utilization of a first channel; a receiving end judges data receiving condition of the receiving end according to whether packet loss occurs or not fed back through utilization of a second channel and whether the second channel is occupied or not detected by a sending end; and further the receiving end selectively realizes forward error correction coding of the data, therebyreconstructing the source end data. According to the method, selective error correction coding of to-be-sent data is realized through utilization of the two channels, data transmission efficiency is improved and bandwidth is saved; and handshake does not exists, so data transmission security and confidentiality are ensured.

Description

technical field [0001] The invention belongs to the technical field of data transmission, and in particular relates to a method for reconstructing source end data by applying error correction coding technology to realize one-way transmission. Background technique [0002] In the field of information security, sometimes it is required that data can only be transmitted in one direction, for example, to ensure that data in a high-density network cannot flow to a low-density network, but data in a low-density network can flow to a high-density network, thereby avoiding leaks. . In order to completely solve the problem of high-density network information leakage, only one-way transmission technology without feedback is used. Among them, the security isolation and information one-way import system adopts a unique one-way non-feedback transmission technology to ensure the absolute one-way flow of data from the physical link layer and the transport layer. [0003] The working prin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/16H04L1/18
CPCH04L1/004H04L1/0041H04L1/0045H04L1/0061H04L1/16H04L1/18
Inventor 苗春水陈化吉
Owner 北京光润通科技发展有限公司
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