Visible light positioning assisted multi-user optical communication system and method

Abstract

The invention discloses a visible light positioning assisted multi-user optical communication system and method. The communication system comprises a micro base station and a user receiver, wherein the micro base station comprises a mounting plate, a visible light locator is arranged in the middle of the bottom surface of the mounting plate, and a plurality of automatic tracking optical communication devices are arranged on the bottom surface of the mounting plate around the visible light locator; the visible light locator is connected with a plurality of automatic tracking optical communication devices through a serial bus; the visible light locator circularly broadcasts the ID of the micro base station and the current working state data of the automatic tracking optical communication device to a coverage area; the user receiver sends own 3D position coordinates and a user identity identifier to the visible light locator; and the visible light locator appoints the automatic tracking optical communication device which is closest to the user and is idle to establish a communication link with the user receiver. The bottleneck problems of poor radiation communication quality and high bit error rate in point-to-surface or three-dimensional space of optical communication can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of visible light communication, and in particular relates to a visible light positioning-assisted multi-user optical communication system and method. Background technique [0002] Visible light communication (Visible Light Communication, VLC) is considered by the industry as a wireless personal area network (WPAN) communication technology due to its advantages such as no spectrum authorization, high security and confidentiality, 400-800THz ultra-wide spectrum and no electromagnetic radiation. It is an alternative technology that is expected to be widely used in the next generation of 6G, 7G and even 8G communication scenarios. At present, VLC's transmitting devices mainly use light-emitting diodes (LightEmittedDiode, LED), laser diodes (LaserDiode, LD) and the newly developed super radiant diodes (SLD), and receiving devices usually use photodiodes (PIN), avalanche diodes (APD) and image sensor, etc. [00...

AI Technical Summary

Problems solved by technology

[0006] However, although this patent can realize point-to-point communication and position tracking function, its principle of positioning is quite different from that of the present application.

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