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Multiple-input multiple-output (MIMO) hiding communication coding and decoding method based on visible light multi-selection 2+1 paths

A coding and decoding method, visible light technology, applied in optical transmission systems, electromagnetic wave transmission systems, short-distance systems, etc.

Active Publication Date: 2016-06-01
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In a digital communication system or a computer system, data generally appears in bytes as the smallest unit. Therefore, in data transmission and communication, half a byte of 4-bit binary number is sent and received each time, which brings great impact to the data processing process. a lot of convenience

Method used

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  • Multiple-input multiple-output (MIMO) hiding communication coding and decoding method based on visible light multi-selection 2+1 paths
  • Multiple-input multiple-output (MIMO) hiding communication coding and decoding method based on visible light multi-selection 2+1 paths
  • Multiple-input multiple-output (MIMO) hiding communication coding and decoding method based on visible light multi-selection 2+1 paths

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Embodiment

[0071] (1) Establish a visible light multi-selection 2+1 channel hybrid optical communication transceiver, which includes: a transmitting end and a receiving end. The transmitting end includes: a transmitting controller 1 , an encoder 2 , a transmitting clock 11 , a frequency selector 3 , a driver 5 , and an optical transmitting antenna group 4 . The optical transmitting antenna group 4 has 8 optical transmitting antennas, and each optical transmitting antenna has: transmitting filter, LED; the receiving end includes: receiving controller 10, decoder 9, receiving clock 12, frequency divider 6, decision device 8. Light-receiving antenna group 7; the light-receiving antenna group 7 has 8 light-receiving antennas, and each light-receiving antenna has: a receiving filter and a photoelectric receiver.

[0072] The transmitting controller 1 is electrically connected with the encoder 2 , the frequency selector 3 , and the transmitting clock 11 respectively; the optical transmitting a...

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Abstract

The present invention discloses a multiple-input multiple-output (MIMO) hiding communication coding and decoding method based on visible light multi-selection 2+1 paths. A visible light multi-selection 2+1 paths hybrid light communication transceiver apparatus is established and includes a transmit end and a receive end. The transmit end includes a transmit controller, a coder, a frequency selector, a driver and a light transmit antenna group. The receive end includes a receive controller, a decoder, a frequency divider, a decision device and a light receive antenna group. Three corresponding groups of transmit antenna and receive antenna are selected from n transmit antennas of the light transmit antenna group and n receive antennas of the light receive antenna group to be used as communication lines in service, and the communication lines in service and coding signals of the apparatus are switched frequently with reference to use of a frequency selection sequence and a coding and decoding table by using foregoing functional modules, so that the MIMO hiding communication coding and decoding method based on visible light multi-selection 2+1 paths is realized with support of a visible light communication MIMO apparatus. According to the method, communication security performance is improved to a certain degree.

Description

technical field [0001] The invention belongs to the technical field of optical communication, and in particular relates to a MIMO concealed communication encoding and decoding method for visible light multiple selection 2+1 channels. Background technique [0002] Visible light communication uses high-speed bright and dark flashing signals invisible to the naked eye emitted by fluorescent lamps or light-emitting diodes to transmit information. Connect the high-speed Internet wire device to the lighting device and plug it into the power plug to use it. [0003] Multiple-Input Multiple-Output (MIMO) technology refers to the use of multiple transmitting antennas and receiving antennas at the transmitting end and the receiving end, respectively, so that signals are transmitted and received through multiple antennas at the transmitting end and the receiving end, thereby improving communication. quality. It can make full use of space resources, realize multi-transmission and multi...

Claims

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Application Information

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IPC IPC(8): H04B10/116H04B10/516H04B10/85
CPCH04B10/116H04B10/5167H04B10/85
Inventor 邓健志程小辉邓卓洪
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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