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A forced integer precoding method for visible light communication system

A visible light communication and precoding technology, applied in the field of visible light communication, can solve the problems of less research and application, and achieve the effect of small mean square error

Active Publication Date: 2021-08-13
SOUTHEAST UNIV
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Problems solved by technology

[0002] At present, in the application of forced precoding in visible light communication systems, there are forced precoding designs for single-user multiple-input multiple-output systems, and forced precoding designs with signal-to-interference-noise ratio as the research direction. There are few researches and applications on the user multi-input single-output system and the optimization objective of mean square error

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  • A forced integer precoding method for visible light communication system
  • A forced integer precoding method for visible light communication system
  • A forced integer precoding method for visible light communication system

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[0036] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention All modifications of the valence form fall within the scope defined by the appended claims of the present application.

[0037] The invention provides a forced integer precoding method of a visible light communication system. The method first establishes the mean square error minimization model, and then transforms the mean square error minimization model into an iterative solution to non-convex problems. The model of the precoding matrix and the model of optimizing the forced integer matrix, and then use the convex approximation iterative method to solve the transmit precoding matrix,...

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Abstract

The invention discloses a forced integer precoding method of a visible light communication system. Firstly, the mean square error minimization model is established, and then the mean square error minimization model is transformed into an iterative solution to non-convex problems. In one iteration, the mean square error minimization model is split first, and the optimized transmission precoding matrix is ​​obtained respectively. The model of the model and the model of optimizing the forced integer matrix, and then use the convex approximation iterative method to solve the transmission precoding matrix, and use the greedy method to solve the forced integer matrix. When the convergence condition is satisfied, the iteration terminates, and the obtained precoding matrix and forced integer matrix The number matrix is ​​the final result, otherwise continue to the next iteration. The present invention obtains a smaller mean square error under the same optical power constraint condition.

Description

technical field [0001] The invention relates to a forced integer precoding method of a visible light communication system, belonging to the technical field of visible light communication. Background technique [0002] At present, in the application of forced precoding in visible light communication systems, there are forced precoding designs for single-user multiple-input multiple-output systems, and forced precoding designs with signal-to-interference-noise ratio as the research direction. The research and application of multi-input single-output system and mean square error as the optimization goal are less. Contents of the invention [0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a forced integer precoding method for a visible light communication system. Firstly, the mean square error minimization model is established, and then the mean square error minimization model is transformed into a non-con...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/116H04B10/516H04B10/50
CPCH04B10/116H04B10/502H04B10/516
Inventor 陈明管军蒋良成肖仁良
Owner SOUTHEAST UNIV
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