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Fusion method for visible light communication network and WLAN

A fusion method and visible light technology, applied in the field of wireless networks, can solve the problems of visible light communication link interruption and visible light difficulty, and achieve the effect of improving network transmission speed and system capacity

Active Publication Date: 2013-08-21
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

First of all, LED lighting equipment used in visible light networks is a natural broadcasting device, but how to provide visible light uplink transmission links for distributed mobile nodes is a difficult point
Secondly, because the movement or rotation of the receiving end often leads to the interruption of the visible light communication link, it is necessary to establish a link recovery and switching mechanism

Method used

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  • Fusion method for visible light communication network and WLAN
  • Fusion method for visible light communication network and WLAN
  • Fusion method for visible light communication network and WLAN

Examples

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Embodiment Construction

[0027] The present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0028] Such as figure 1 As shown, multiple visible light hotspots are connected with a server and a WLAN access node by wire, and the visible light hotspots are installed on the ceiling. The server knows the locations and identification numbers of all visible light hotspots, and if the mobile node enters the hotspot coverage area, it sends the identification numbers of the hotspots in the area to the server so that the server can know the location of the mobile node. The server assigns a transmission time slot by locating the mobile node and notifies the service hotspot to send downlink data. The WLAN system is used to process the access request of the mobile node and allocate an uplink channel for it, and provide a downlink transmission channel when the mobile node is outside the coverage of the visible light communication network. The mobile no...

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Abstract

The invention discloses a fusion method for a visible light communication network and a WLAN and belongs to the technical field of wireless networks. According to the fusion method, a plurality of visible light hotspots are in wired connection with a server and a WLAN access node, the visible light communication network only provides a down linkage, light waves with the same frequency are used among all the visible light hotspots, and a visible light receiving set and a WLAN transceiver are allocated to a movable node. The fusion method comprises a phase of access of the movable node and a phase of switchover of the movable node. By utilization of the free frequency spectrum of visible light waves and the high-speed down-link transmission speed of the visible light communication network, the fusion method for the visible light communication network and the WLAN largely improves the network transmission speed and the system capacity of the WLAN.

Description

technical field [0001] The invention belongs to the technical field of wireless networks, and more precisely, the invention relates to a fusion method of a visible light communication network and a WLAN. Background technique [0002] With the substantial growth of data services, wireless networks must provide greater capacity and more efficient spectrum utilization. However, most radio wave spectrum resources have already been allocated, and radio waves will also cause interference to adjacent devices, and wireless networks are experiencing capacity bottlenecks. [0003] Visible light communication technology is a wireless communication technology that has emerged in recent years. It can solve the problem of increasingly crowded wireless communication spectrum resources. Visible light communication network uses free visible light spectrum resources, which can not only avoid electromagnetic interference but also use LED energy-saving materials to transmit data while providin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116H04W84/12
Inventor 鲍煦戴继生王赟朱娜
Owner JIANGSU UNIV
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