CN103701524A - Self-organizing network based on wireless optical communication - Google Patents
Self-organizing network based on wireless optical communication Download PDFInfo
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- CN103701524A CN103701524A CN201410022963.1A CN201410022963A CN103701524A CN 103701524 A CN103701524 A CN 103701524A CN 201410022963 A CN201410022963 A CN 201410022963A CN 103701524 A CN103701524 A CN 103701524A
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Abstract
The invention provides a self-organizing network based on wireless optical communication. The self-organizing network comprises a plurality of nodes with unique numbers, wherein each node is formed by a plurality of wireless optical transceiver modules arranged like a ring, transceiving units of the wireless optical transceiver modules face the outside of the ring, and each wireless optical transceiver module has an independent unique number. The wireless self-organizing network scheme self-organizing the network through wireless optical communication has the beneficial effects that the system node can be combined with a lighting LED (light emitting diode), and the network nodes can be arranged on telegraph poles, high-tension power wire towers, street lamps or specific supports to form a specialized or universal data transmission shared network.
Description
Technical field
The invention belongs to wireless light communication technical field, particularly a kind of self-organizing network based on wireless light communication.
Background technology
Wireless light communication is to utilize light intensity to carry out a kind of wireless communication means of characterization signal, has without a series of advantages such as frequency spectrum license, electromagnetic-radiation-free, low-power consumption high-speed.Self-organizing network is a kind of provisional autonomous system of multi-hop, it is without preset network node and planned network topological structure in advance, also without setting the network parameters such as route, only network node need to be arranged arbitrarily, each node is understood automatic network-building and is built Routing Protocol in initialization procedure.
Wireless light communication and self-organizing network are combined, have unique advantage.Wireless light communication utilizes light intensity to carry out beared information, and beam collimation is stronger, and power is more concentrated, easily expands inter-node communication distance.While is because communication collimation is stronger, so network topology is relatively simple, and the more traditional mobile ad-hoc network of initialization algorithm is simplified greatly.Radio optical communication system can be used at the region security of radio shielding, radio frequency sensitivity in addition.Even, wireless light communication can combine with illumination LED, self-organizing network is erected in the infrastructure of lighting mains, reduces and sets up cost.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of self-organizing network based on wireless light communication, wireless light communication and mobile ad-hoc network technology are combined, can be erected on the basis of existing LED lighting mains, networking, transfer of data, shared function are provided, also can use in the scene of other demand cordless communication networks.
To achieve these goals, the technical solution used in the present invention is:
A kind of self-organizing network based on wireless light communication, comprise that several are with the node of unique number, each node is comprised of a plurality of wireless optical transceiver modules that are arranged to annular, and the Transmit-Receive Unit of wireless optical transceiver module is outside ring, and each wireless optical transceiver module has independently unique number.
Described node is arranged on illumination LED, and wireless optical transceiver module is positioned at illumination LED top.
The transmitting terminal of described wireless optical transceiver module is infrared LED transmitter module, ultraviolet LED transmitter module, visible LED transmitter module or infrared, ultraviolet lasing module; Receiving terminal is photo-electric conversion element.
Described photo-electric conversion element is photodiode, avalanche diode or PMT.
Network when system initialization, each node first survey around can with the node of own UNICOM, and build a network topology structure centered by own, this structure matrix notation, entry of a matrix A
ijrepresent the channel quality between i node and j node, numeral is less shows that channel quality is better; Then, the topology information that each node obtains oneself is node broadcasts towards periphery, constantly receives the topology information that node sends, the network topology structure matrix of updating maintenance oneself around simultaneously, until all nodes all obtain complete network topology, complete whole initialization procedure.
Wherein said UNICOM refers to that two nodes can intercom mutually.
The basic principle of channel quality of the present invention:
Wireless optical transceiver module is a kind of communication module, can equally with radio-frequency communication module send, reception information." channel quality " conventionally utilizes the mode of " transmitting terminal sends training sequence, calculate sending and receiving end and feed back " to carry out.
Such as, i node broadcasted own specific training sequence towards periphery, and j node around received this training sequence, and according to the quality of the training sequence receiving can calculate node i to the channel quality of node j also trial feed back.Meanwhile, node j also can broadcast own training sequence, if node i receives the training sequence of node j, also can calculate node j to the channel quality of node i and attempt confirming.After node i and node j have calculated channel mutually, can think that node i can intercom mutually with node j, i.e. UNICOM.
So, by each node mode of the own training sequence of node broadcasts towards periphery respectively, each node can calculate own around can UNICOM node with and channel quality.
Because each node in the present invention is except having wireless optical transceiver module, also have the ability that signal is processed.Above the computational methods of UNICOM, illustrate calculate whether UNICOM is calculated by each node oneself.UNICOM's type of whole self-organizing network represents by a matrix, and each node is being stored this matrix, be not completely cured according to Real-time Channel and UNICOM's information matrix is carried out to updating maintenance.
Compared with prior art, the present invention carrys out the wireless self-networking scheme of self-organizing network by the mode of wireless light communication, and the system schema of the communication mode of any optical band, any wireless light communication self-organizing network should all belong to the protection range of this patent.This system node can with illumination LED combination, also network node can be placed in as in electric pole, high-tension electricity transmission tower, street lamp or particular stent, form special-purpose or general transfer of data, shared network.
Accompanying drawing explanation
Fig. 1 is the wireless light communication-self-organized network nodes schematic diagram that utilizes existing LED repacking.
Fig. 2 is the schematic diagram of network system of the present invention.
Embodiment
Below in conjunction with drawings and Examples, describe embodiments of the present invention in detail.
A kind of self-organizing network based on wireless light communication of the present invention, comprise that several are with the node of unique number, each node is comprised of a plurality of wireless optical transceiver modules that are arranged to annular, the Transmit-Receive Unit of wireless optical transceiver module is outside ring, and each wireless optical transceiver module has independently unique number.
In the present invention, each node needs specialized designs.Because wireless light communication has stronger directivity, therefore want to carry out directional communication, need to a plurality of (K>=2) wireless optical transceiver module be installed at the different directions of node side.
A kind of scheme of reequiping based on illumination LED mould as shown in Figure 1, a plurality of wireless optical transceiver modules 101 are arranged on existing illumination LED 102 tops, this node can, when illumination is provided, utilize the wireless optical transceiver module 101 of side to build self-organizing network.
Meanwhile, the node of describing in the present invention also can depart from illumination LED, and as in application scenarios such as electric pole, road lamp frame, high voltage transmission line towers, node only needs two groups of ambient light transceiver communication modules, and a plurality of nodes can form serial link, and each node provides relay services; And for example the occasion such as construction operation, military operation need to be built a LAN temporarily in the wild, can adopt the node with a plurality of sides wireless optical transceiver module (as Fig. 1, but there is no below illumination LED), utilize the node of this directional communication to build wireless self-organization network.Wireless light communication transceiver module also limits the light-wave band using simultaneously, comprises that in visible light wave range, infrared band, any wave band is all operable wave band, only need to guarantee that the transceiver module of whole system adopts identical wave band.
When networking, each node in network need to be allocated ID, i.e. node number in advance.When setting up network, node is arranged arbitrarily, executive system initialization procedure can complete the routing forwarding of analysis of networks topology and each node and set.When system initialization, each node first survey around can with the node of own UNICOM, and build a network topology structure centered by own, this structure matrix notation, entry of a matrix A
ijrepresent the channel quality between i node and j node, numeral is less shows that channel quality is better.And then, the topology information picture that each node obtains oneself is left and right node broadcasts around, constantly receives the topology information that node sends, the network topology structure matrix of updating maintenance oneself around simultaneously, until all nodes all obtain complete network topology, complete whole initialization procedure.After initialization completes, all nodes have all obtained the network topology of describing with matrix.The schematic diagram of a network system as shown in Figure 2, has comprised 6 nodes with unique number, is respectively node 1, node 2, node 3, node 4, node 5 and node 6.
When carrying out transfer of data, as some node A need to be transfer of data to Node B.Node A has obtained a network topology matrix after initialization, and by the analysis to matrix, whether node A can calculate it and be communicated with B, if be communicated with, can calculate shortest path (the fastest transfer path of information).Suppose that A is communicated with B, and A calculated shortest path, so A by the route of shortest path and the data packing that needs to send be sent to the next node of shortest path.Each node, according to the planning of shortest path in packet, is finally sent to B by the continuous forwarding of data afterwards, completes the process of a data transfer.
Claims (6)
1. the self-organizing network based on wireless light communication, it is characterized in that, comprise that several are with the node of unique number, each node is comprised of a plurality of wireless optical transceiver modules that are arranged to annular, the Transmit-Receive Unit of wireless optical transceiver module is outside ring, and each wireless optical transceiver module has independently unique number.
2. the self-organizing network based on wireless light communication according to claim 1, is characterized in that, described node is arranged on illumination LED, and wireless optical transceiver module is positioned at illumination LED top.
3. the self-organizing network based on wireless light communication according to claim 1, it is characterized in that, the transmitting terminal of described wireless optical transceiver module is infrared LED transmitter module, ultraviolet LED transmitter module, visible LED transmitter module or infrared, ultraviolet lasing module; Receiving terminal is photo-electric conversion element.
4. the self-organizing network based on wireless light communication according to claim 3, is characterized in that, described photo-electric conversion element is photodiode, avalanche diode or PMT.
5. the self-organizing network based on wireless light communication according to claim 1, it is characterized in that, network is when system initialization, each node first survey around can with the node of own UNICOM, and build a network topology structure centered by own, this structure matrix notation, entry of a matrix A
ijrepresent the channel quality between i node and j node, numeral is less shows that channel quality is better; Then, the topology information that each node obtains oneself is node broadcasts towards periphery, constantly receives the topology information that node sends, the network topology structure matrix of updating maintenance oneself around simultaneously, until all nodes all obtain complete network topology, complete whole initialization procedure.
6. the self-organizing network based on wireless light communication according to claim 5, is characterized in that, described UNICOM refers to that two nodes can intercom mutually.
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| ITUA20162228A1 (en) * | 2016-04-01 | 2017-10-01 | Valerio Pagliarino | Data transport network and corresponding data communication procedure implemented by said network. |
| CN108696879A (en) * | 2018-03-21 | 2018-10-23 | 深圳市海司恩科技有限公司 | Ad hoc network method, self-organizing network system and the storage medium of ultraviolet optical-fiber network |
| CN108988942A (en) * | 2018-08-23 | 2018-12-11 | 西安蜂语信息科技有限公司 | The communication means and device of lighting apparatus |
| CN112422188A (en) * | 2020-12-03 | 2021-02-26 | 桂林电子科技大学 | Optical carrier ad hoc network node equipment for distributed sensor network |
| CN117240359A (en) * | 2023-11-10 | 2023-12-15 | 西安现代控制技术研究所 | Ultraviolet light-based unmanned aerial vehicle cluster photoelectric hybrid networking method |
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| CN112422188A (en) * | 2020-12-03 | 2021-02-26 | 桂林电子科技大学 | Optical carrier ad hoc network node equipment for distributed sensor network |
| CN117240359A (en) * | 2023-11-10 | 2023-12-15 | 西安现代控制技术研究所 | Ultraviolet light-based unmanned aerial vehicle cluster photoelectric hybrid networking method |
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