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Indoor VLC-WiFi hybrid network control method

An access control, layer-2 network technology, applied in the field of communication, can solve the problems of high complexity of multiple optical access points and difficult to obtain channel state information, etc.

Inactive Publication Date: 2021-09-14
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that there are technical problems in the related art that the resource allocation for multiple optical access points is relatively complex, or the required channel state information is difficult to obtain

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0056] According to the embodiment of the present invention, processing the user state information table and generating the resource allocation table includes operations S301-S302.

[0057] In operation S301, determine the maximum signal strength value in the user status information table, and use the optical access point corresponding to the maximum signal strength value as a target optical access point.

[0058] According to the embodiment of the present invention, by using the optical access point with the largest signal strength value when communicating with the electronic device as the target optical access point, the accuracy of data transmission when the target optical access point sends user data packets to the electronic device can be guaranteed. stability.

[0059] In operation S302, when it is determined that the signal strength value of the only communication between the electronic device and the target optical access point is greater than a preset threshold, deter...

Embodiment 2

[0073] According to an embodiment of the present invention, there are multiple optical access points.

[0074] According to the embodiment of the present invention, processing the user state information table and generating the resource allocation table includes operations S401-S404.

[0075] In operation S401, determine the maximum signal strength value in the user state information table, and use the optical access point corresponding to the maximum signal strength value as a target optical access point.

[0076] In operation S402, a time slot occupation set and a time slot interference set of each of the multiple optical access points are acquired.

[0077] In operation S403, according to the time slot occupation set and the time slot interference set of each optical access point, determine the available time slot information sequence of the target optical access point, the available time slot information sequence includes a plurality of available time slot information, mul...

Embodiment 3

[0101] According to an embodiment of the present invention, there are multiple optical access points, and each optical access point communicates with multiple electronic devices.

[0102] According to an embodiment of the present invention, processing the user status information table to generate a resource allocation table includes operations S501-S510.

[0103] In operation S501, determine the maximum signal strength value of each electronic device among the plurality of electronic devices in the user state information table, and use the optical access point corresponding to the maximum signal strength value of each electronic device as the target optical access point point; generate an optical access point set according to multiple optical access points in the system; generate an electronic device set according to multiple electronic devices.

[0104] In operation S502, the transmission rates of the electronic devices in the electronic device set are initialized.

[0105] ...

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Abstract

The invention provides an indoor VLC-WiFi hybrid network control method, which is applied to an access control device, the access control device is two-layer network equipment, and the wireless communication control method comprises the following steps: generating a user state information table which is generated based on feedback data sent by electronic equipment, representing a connection state and signal strength of communication between the electronic equipment and the optical access point; processing the user state information table to generate a resource allocation table; acquiring a user data packet; and distributing the user data packets according to the resource distribution table. According to the control method provided by the invention, the resource allocation table is acquired, and the resource allocation is carried out on the plurality of optical access points according to the resource allocation table, so that the resource allocation efficiency is improved with relatively low complexity.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a control method for an indoor VLC-WiFi hybrid network. Background technique [0002] As an emerging communication method, visible light communication technology (Visible Light Communication, VLC) has attracted widespread attention due to its abundant license-free frequency bands, and is expected to become a complementary technology for mobile communications in the near future. Visible light communication has low deployment cost, good directionality, and can take into account lighting and communication, which is very suitable for indoor short-distance transmission scenarios. [0003] In indoor visible light communication, the access control device is an important component, which undertakes tasks such as user management and resource allocation. The coverage of a single optical access point is limited. In order to ensure seamless coverage and uniform lighting of indoor com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/08H04B10/116H04W72/54
CPCH04B10/116H04W72/53H04W72/542
Inventor 金显庆郭德文金美玉徐正元
Owner UNIV OF SCI & TECH OF CHINA
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