CN110247727A - A kind of method and system improving optical-fiber network security performance using ROADM - Google Patents
A kind of method and system improving optical-fiber network security performance using ROADM Download PDFInfo
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- CN110247727A CN110247727A CN201910543863.6A CN201910543863A CN110247727A CN 110247727 A CN110247727 A CN 110247727A CN 201910543863 A CN201910543863 A CN 201910543863A CN 110247727 A CN110247727 A CN 110247727A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0213—Groups of channels or wave bands arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
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Abstract
The invention discloses a kind of method and system that optical-fiber network security performance is improved using ROADM, it is related to technical field of photo communication, the present invention utilizes reconstructable OADM system (Reconfigurable Optical Add-Drop Multiplexer to the signal for entering network in source node, ROADM phase scrambling code) is carried out to signal, signal after phase scrambling code continues to transmit in a network, it reaches destination node and spectrum decoding is carried out using same phase scrambling code, restore original signal.It not can be carried out correct decoding if using other phase scrambling codes, therefore information cannot be obtained, to improve the information security of ROADM optical-fiber network.Bandwidth is prevented take up by the way of phase scrambling code, does not influence the frequency spectrum distribution of original network, using existing ROADM node, realizes high efficient and flexible and safe and reliable optical-fiber network.
Description
Technical field
The present invention relates to technical field of photo communication, and in particular to a kind of side that optical-fiber network security performance is improved using ROADM
Method and system.
Background technique
With communication service, including especially counting with the development year by year of the multimedia services such as speech, data and video image
It is increased rapidly according to the portfolio with transmission of video, the requirement to the transmission capacity of optical-fiber network, rate, distance and transmission quality is continuous
It improves, and the flexibility to optical-fiber network building, and the construction of optical-fiber network and the reduction of operation and maintenance cost is especially paid close attention to.
In order to meet the needs of IP network, the construction of basic bearer network gradually adopts one kind with reconstructable OADM system
System (Reconfigurable OpticalAdd-Drop Multiplexer, ROADM) is the photosphere reconfiguration technique of representative.Have
The ROADM of dynamic configurability is the important foundation that optical-fiber network " intelligence " is realized.ROADM can not only as traditional OA DM,
Specific wavelength can be extracted from multi-wavelength line signal to be inserted into route to local and by local wavelength, and these
Operation can be realized completely by software configuration, to lay the foundation for distributed AC servo system operation.Currently to next-generation ROADM frame
The common demands of structure are vast capacity, colourless (Colorless), directionless (Directionless), clog-free
(Contentionless).Specifically, same road port up and down can be reconstructed into the spy of different wave length in colourless property finger joint point
Property.It is non-directional, referred to as " undirected ", refer to that same road port up and down can be reconfigured to different line directions and a certain in node
Optical channel on direction can descend the characteristic of road port through to other different dimensions or lower road to some.Non-blocking is
Different road ports up and down do not conflict in the phase co-wavelength for being reconfigured to different directions in finger joint point.Meanwhile further to mention
High optical fiber frequency spectrum service efficiency and support ultra-wideband-light channel, the frequency spectrum operation of no grid (Gridless) is also as ROADM's
The requirement of another important feature, i.e., limit (such as interval 50GHz) without being bound by the frequency spectrum of traditional ITU-T fixed-grid, can be right
The optical channel of specified wavelength implements straight-through and upper and lower road operation.
In recent years, to realize that higher network resource utilization, optical-fiber network are just gradually evolved from ring structure to network,
And as one of subsystem most crucial in optical-fiber network, ROADM is also from simple bidimensional framework to more complicated multidimensional (> 2 dimension)
Architecture evolution.Currently, ROADM system common are three kinds of technologies: wavelength blocker (WB, Wavelength Blocker) is put down
Face optical waveguide (PLC, Planar Lightwave Circuits), wavelength-selective switches (WSS, Wavelength Selective
Switch).Most preferably third generation ROADM, this system are based on wavelength-selective switches WSS.Currently, the core of wavelength-selective switches
Heart technology is that mainly had at present: microelectronics machine based on spatial light modulator (SLM, Spatial Light Modulator) technology
Tool system (MEMS, Micro Electro-Mechanical Systems), liquid crystal (LC, Liquid Crystal) and silicon substrate
Liquid crystal technology (LCoS, Liquid Crystal on Silicon).Foreign countries have device supplier to release enhanced WSS- based on silicon
The programmable optical processor WaveShaper of base fluid crystal technique (LCoS), expands the flexibility of WSS.Wavelength-selective switches use
Free space optical exchange, can support higher port number (dimension, Degree), WSS type ROADM to be increasingly becoming the next generation
The one preferred technique of ROADM.
In the information age of big data, the safety of network is can not be ignored the problem of.Usual system safety and property
It can be the relationship of conflict with function.Network safety system is constructed, due to authenticate, is encrypted, monitoring, record etc., thus shadow
The efficiency of acoustic system, on the other hand also increases administration fee.In wavelength-division multiplex (Wavelength Division
Multiplexing, WDM) in optical-fiber network, with the deployment and mesh network topologies of restructural type add-drop multiplexer (ROADM)
Structure is more and more common.The functions such as route switching, resource allocation, Er Qiejie have been agglomerated using the Intelligent Optical Network node of ROADM
Point control maintenance software can be leaned on remotely to be controlled, do not need human configuration so that optical-fiber network be integrated with software control,
More advantages such as easy to maintain, support multi-service, however exactly these advantages are that the safety management aspect of optical-fiber network is brought again
Potential hidden danger, so that network becomes larger by a possibility that malicious attack.
Therefore, the advantages of how utilizing ROADM, providing not only safe and reliable but also high speed, easily communication becomes flexible optical-fiber network
The significant problem considered is had to, for pushing ROADM networking and practical engineering application to be of great significance.
Summary of the invention
In view of the deficiencies in the prior art, optical-fiber network is improved using ROADM the purpose of the present invention is to provide a kind of
The method and system of security performance improve the information security of ROADM optical-fiber network.
To achieve the above objectives, the technical solution adopted by the present invention is that: it is a kind of using ROADM improve optical-fiber network security performance
Method, comprising the following steps:
ROADM system is set in source node, the dynamic of wavelength resource is carried out by the original signal that ROADM system docking enters
Configuration, and phase code is carried out to original signal, the signal after phase code is transmitted to destination node in a network；
ROADM system is set in destination node, the signal after the phase code sent by ROADM system to source node carries out
The dynamic configuration of wavelength resource, and phase decoding is carried out to the signal after phase code and obtains original signal.
On the basis of above scheme, the dynamic configuration for carrying out wavelength resource, specifically includes the following steps: selection is not
Same central wavelength and bandwidth, is filtered signal, and be transmitted separately to specified output port.
On the basis of above scheme, the method also includes following steps: the use wavelength selection of the ROADM system
Cross-connect matrix WSXC, and the ROADM system is connected to the optical fiber link of multiple dimensions, each dimension has a pair of of input
Port, output port are connected with other nodes；Increase input, output port number to increase the dimension of ROADM system.
On the basis of above scheme, the method also includes following steps: the ROADM system is used to be selected based on wavelength
The cross-connect matrix of switch WSS is selected, and the ROADM system is connected to the optical fiber link of multiple dimensions, each dimension has
A pair of of input port, output port are connected with other nodes；Increase WSS to increase the dimension of ROADM system.
The present invention also provides a kind of ROADM systems for improving optical-fiber network security performance, comprising: ROADM cross-connect matrix,
Multipair input port, output port, multipair upper road port, lower road port and network management system；
Wherein, each input port, output port are connected respectively to a certain line direction；Each upper road port, lower road port are logical
It crosses ROADM cross-connect matrix and is reconfigured to different line directions；Optical fiber link on a certain line direction is intersected by ROADM to be connected
It connects matrix and is connected to other different line directions or certain once road port；
Network management system is used to control the dynamic configuration that ROADM cross-connect matrix carries out wavelength resource to signal, is also used to
Phase code/decoding is carried out to up/down road signal.
On the basis of above scheme, the ROADM system is connected to the optical fiber link of multiple dimensions, and each dimension has
A pair of of input port, output port are connected with other nodes.
On the basis of above scheme, the ROADM cross-connect matrix is wavelength selection cross-connect matrix WSXC；Respectively
Upper road port, lower road port are reconfigured to different line directions by WSXC；The optical fiber link of certain dimension is connected to by WSXC
Different output port or certain once road port.
On the basis of above scheme, the ROADM cross-connect matrix is that the intersection based on wavelength-selective switches WSS connects
Matrix, including N number of WSS and N number of fiber coupler are connect, each WSS includes an input terminal and N number of output end；Every dimension
Input port connects WSS input terminal, then different output ports is connected to by WSS output end, and per one-dimensional output port
Pass through the compound signal from different wave length selection switch of fiber coupler；
Each upper road port, lower road port reconstruct different line directions by WSS；The optical fiber link of certain dimension passes through WSS
It is connected to other different dimensions or certain once road port.
On the basis of above scheme, the network management system controls ROADM cross-connect matrix carries out wavelength money to signal
The dynamic configuration in source, specifically includes the following steps: central wavelength and bandwidth that selection is different, are filtered signal, and respectively
It is transmitted to specified output port.
On the basis of above scheme, the network management system by general purpose interface bus, local area network, universal serial bus and
System equipment carries out out-of-band communication.
Compared with the prior art, the advantages of the present invention are as follows:
The present invention carries out phase scrambling code to signal using ROADM system to the signal for entering network in source node, by phase
Signal after the scrambling code of position continues to transmit in a network, reaches destination node using same phase scrambling code and carries out spectrum decoding, restores
Signal originally.It not can be carried out correct decoding if using other phase scrambling codes, therefore information cannot be obtained, to mention
The information security of high ROADM optical-fiber network.Bandwidth is prevented take up by the way of phase scrambling code, does not influence the frequency spectrum point of original network
Match, using existing ROADM node, realizes high efficient and flexible and safe and reliable optical-fiber network.
Detailed description of the invention
Fig. 1 is the optical-fiber network schematic diagram of the method that optical-fiber network security performance is improved using ROADM of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the ROADM system of the raising optical-fiber network security performance of the embodiment of the present invention；
Fig. 3 is the raising optical-fiber network security performance based on wavelength selection cross-connect matrix (WSXC) of the embodiment of the present invention
ROADM system structural schematic diagram；
Fig. 4 is the structural block diagram of 4 × 4 wavelength selection cross-connect matrixes (WSXC) of the embodiment of the present invention；
Fig. 5 is that the N based on spatial light modulator × N wavelength of the embodiment of the present invention selects cross-connect matrix (WSXC)
Structural schematic diagram；
Fig. 6 is the raising optical-fiber network security performance based on 1 × 3 wavelength-selective switches (WSS) of the embodiment of the present invention
The structural schematic diagram of ROADM system；
Fig. 7 is the structural schematic diagram of 1 × 3 wavelength-selective switches (WSS) of the embodiment of the present invention；
Fig. 8 is the structure of 1 × N wavelength selection switch (WSS) module based on spatial light modulator of the embodiment of the present invention
Schematic diagram；
Fig. 9 is the signal strength schematic diagram of the input ultrashort pulse for not carrying out phase scrambling code of the embodiment of the present invention；
Figure 10 is the time-domain signal schematic diagram after the carry out phase scrambling code of the embodiment of the present invention；
Figure 11 is the decoded signal schematic representation of carry out correct phase of the embodiment of the present invention；
Figure 12 is the decoded signal schematic representation of carry out wrong phase of the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
The embodiment of the present invention provides a kind of method for improving optical-fiber network security performance using ROADM, comprising the following steps:
ROADM system is set in source node, the dynamic of wavelength resource is carried out by the original signal that ROADM system docking enters
Configuration, and phase code is carried out to original signal, the signal after phase code is transmitted to destination node in a network；
ROADM system is set in destination node, the signal after the phase code sent by ROADM system to source node carries out
The dynamic configuration of wavelength resource, and phase decoding is carried out to the signal after phase code and obtains original signal.
The dynamic configuration for carrying out wavelength resource, specifically includes the following steps: central wavelength and bandwidth that selection is different,
Signal is filtered, and is transmitted separately to specified output port.
Fig. 1 is the optical-fiber network schematic diagram of the method that optical-fiber network security performance is improved using ROADM of the embodiment of the present invention.?
Source node carries out phase scrambling code to signal using ROADM system to the signal for entering network, and the signal after phase scrambling code exists
Network trunk resumes defeated, arrival receiving end, using the progress spectrum decoding of same phase scrambling code, restores original signal.If
It not can be carried out correct decoding then using other phase scrambling codes, therefore information cannot be obtained, to improve ROADM optical-fiber network
Information security.Bandwidth is prevented take up by the way of phase scrambling code, does not influence the frequency spectrum distribution of original network, and utilization is existing
ROADM system realizes high efficient and flexible and safe and reliable optical-fiber network.
The embodiment of the present invention also provides a kind of ROADM system for improving optical-fiber network security performance, and Fig. 2 is to improve optical-fiber network peace
The structural schematic diagram of the ROADM system of full performance, including ROADM cross-connect matrix, input, output port, upper and lower road port
And network management system.Input, output port are connected to a direction of other nodes in ROADM system.Same road up and down in node
Port can be reconfigured to different line directions and optical channel in one direction can be through to other different dimensions or lower road
To some lower road port.Network management system controls ROADM cross-connect matrix carries out the wavelength resource by node dynamic
Configuration, while phase code/decoding is carried out to the up/down road signal of node, to realize safe and reliable and high efficient and flexible light
Network.Network management system can pass through GPIB (General Purpose Interface Bus, general purpose interface bus), LAN (Local
Area Network, local area network), the communication interfaces such as USB (Universal Serial Bus, universal serial bus) and system set
It is standby to carry out out-of-band communication.
Fig. 3 is based on wavelength selection cross-connect matrix (WSXC, Wavelength Selected Cross-Connect)
Raising optical-fiber network security performance ROADM system structural schematic diagram.Each system may include the optical fiber link of various dimensions,
There is a pair of of optical fiber link to be connected with other nodes per one-dimensional, three dimensions are always indicated with east, west, the north respectively.Per one-dimensional
Input terminal all pass through wavelength selection cross matrix signal be filtered, be then transmit to different output ports.It is based on
The ROADM system of WSXC, increasing input/output port can be increased the attachable dimension of ROADM system.Each system includes
Multipair road, upper and lower road port up and down can be communicated by wavelength selection cross matrix with a direction in system, flexibly up and down
Road signal.Simultaneously over/under road when to signal carry out phase code/decoding, only destination node carry out and source node encode phase
It could be extracted after corresponding decoding and recover original signal, even if stealing signal in other intermediate nodes, can not carried out correct
Decoding can not correctly restore original signal, improve safety of the signal in optical-fiber network.It is selected by network management system controls wavelength
Cross matrix is selected dynamically to be configured to by the wavelength resource of system, at the same to the up/down road signal Jing Guo the system into
Row safe coding/decoding, other performances (such as power equalization, dispersion compensation etc.) of system can also be carried out corresponding control and
Management.
Fig. 4 is the structural block diagram of 4 × 4 wavelength selection cross-connect matrixes (WSXC).Wavelength selection cross matrix has 4
Input port and 4 output ports, including upper and lower road port.It can be matched by the dynamic that network management system carries out wavelength resource
It sets, i.e., by selecting different central wavelength and bandwidth, signal is filtered, specified output end is then transmitted separately to
Mouthful.Safe coding/decoding is carried out to by the up/down road signal of the node simultaneously, it can also other performances (such as function to node
Rate equilibrium, dispersion compensation etc.) it is controlled and is managed accordingly.
Fig. 5 is the structural schematic diagram that the N based on spatial light modulator × N wavelength selects cross-connect matrix (WSXC).Base
It is by N × N input/output fiber array in N × N WSXC module of spatial light modulation technology, polarization diversity device (will input
The light of optical fiber output is converted into consistent with grating diffration maximum polarization state), cylindrical mirror, grating and can be compiled collimator lens array
The spatial light modulator composition of journey, the amplitude and phase of each optical channel of place service band can flexibly be compiled
Journey.
Input optical signal after input optical fibre enters WSXC module, believe by the light that polarization diversity device exports input optical fibre
Number be converted into the consistent optical signal of grating diffration maximum polarization state, then after cylindrical mirror reflection and collimation lens collimation extremely
Grating is divided, and input optical signal is returned again to collimation lens, collimation lens is to each in space development by different wave length
The corresponding spectrum component of wavelength is assembled, through cylindrical mirror reflex to spatial light modulator respective handling unit carry out amplitude and
The adjustment of phase carries out flexible programming by amplitude and phase of the network management system to each optical channel of place service band, empty
Between the processed frequency spectrum of optical modulator, return to grating using cylindrical mirror and collimation lens, synthesize with specific wavelength model
The optical signal enclosed, then returns to collimation lens, after collimated lens focus, is reflected into polarization diversity element by cylindrical mirror, passes through
After polarization diversity element restores the polarization state of output optical signal, output to a certain specified output optical fibre port.
Fig. 6 is the raising light based on 1 × 3 wavelength-selective switches (WSS, Wavelength Selective Switch)
The structural schematic diagram of the ROADM system of network security performance.Each system may include the optical fiber link of various dimensions, per it is one-dimensional all
There is a pair of of optical fiber link to be connected with other nodes, three dimensions are always indicated with east, west, the north respectively.Per one-dimensional input terminal
Signal is filtered by a bandwidth adjustable 1 × 3 wavelength-selective switches, is then transmitted separately to different output ends
Mouthful.It is all to first pass through a fiber coupler signal of all directions in system is combined to output optical fibre per one-dimensional output end
In, it is then transmit to other nodes.ROADM system based on this structure then needs to increase to increase the dimension of system
The number of WSS.Each system further includes that multipair road, upper and lower road port up and down can be reconfigured to different line directions, flexibly up and down
Road signal.Simultaneously over/under road when to signal carry out phase code/decoding, only destination node carry out and source node encode phase
It could be extracted after corresponding decoding and recover original signal, even if stealing signal in other intermediate nodes, can not carried out correct
Decoding can not correctly restore original signal, improve safety of the signal in optical-fiber network.By network management system controls each
WSS is dynamically configured to by the wavelength resource of system, while carrying out safe volume to the up/down road signal Jing Guo the system
Code/decoding, can also other performances to system controlled and managed accordingly.
Fig. 7 is the structural schematic diagram of 1 × 3 wavelength-selective switches (WSS).Wavelength-selective switches have input port and
N number of output port, what Fig. 7 was provided is 1 × 3 wavelength-selective switches with an input port and 3 output ports.It can pass through
Network management system carries out the dynamic configuration of wavelength resource, i.e., different by selection central wavelength and bandwidth are filtered signal,
Then it is transmitted separately to specified output port.Safe coding/decoding is carried out to by the up/down road signal of the node simultaneously,
Can also other performances to node controlled and managed accordingly.
Fig. 8 is the structural schematic diagram of 1 × N wavelength selection switch (WSS) module based on spatial light modulator.Based on space
The WSS module of light modulation techniques is by 1 × N input/output fiber array (input port and N number of output port), polarization
The light that input optical fibre exports (is converted into consistent with grating diffration maximum polarization state) by diversity device, cylindrical mirror, grating, collimation
Lens and programmable spatial light modulator composition, can amplitude and phase to each optical channel of place service band into
Row flexible programming.
Fig. 9 is the signal strength schematic diagram for not carrying out the input ultrashort pulse of phase scrambling code.For example, input herein
Ultrashort pulse signal is Sinc function impulse signal, and Sinc function impulse signal has the spectral characteristic of ideal rectangle, facilitates
Improve optical-fiber network frequency spectrum resource utilization rate.
Figure 10 is the time-domain signal schematic diagram carried out after phase scrambling code.Using ROADM system, frequency spectrum point is being carried out to signal
With while, signal spectrum is encoded with phase scrambling code, the signal after obtaining phase scrambling code but has no effect on network
Frequency spectrum resource distribution, can continue to transmit in a network.
Figure 11 is to carry out the decoded signal schematic representation of correct phase.It is received when the signal after phase scrambling code reaches
End, is decoded signal using phase scrambling code identical with transmitting terminal, restores original signal.
Figure 12 is to carry out the decoded signal schematic representation of wrong phase.If using the phase scrambling code pair different with transmitting terminal
Signal is decoded, then cannot correctly restore original signal.
Based on the same inventive concept, the embodiment of the present application provides a kind of computer readable storage medium, is stored thereon with
Computer program realizes the institute that the method for optical-fiber network security performance is improved using ROADM when computer program is executed by processor
There are method and step or Part Methods step.
The present invention realizes all or part of the process in the above-mentioned method for improving optical-fiber network security performance using ROADM,
Relevant hardware can be instructed to complete by computer program, computer program can be stored in a computer-readable storage medium
In matter, the computer program is when being executed by processor, it can be achieved that the step of above-mentioned each embodiment of the method.Wherein, computer
Program includes computer program code, and computer program code can be source code form, object identification code form, executable file
Or certain intermediate forms etc..Computer-readable medium may include: any entity or dress that can carry computer program code
It sets, recording medium, USB flash disk, mobile hard disk, magnetic disk, CD, computer storage, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software
Distribution medium etc..It should be noted that computer-readable medium include content can according in jurisdiction legislation and specially
The requirement of benefit practice carries out increase and decrease appropriate, such as in certain jurisdictions, computer-readable according to legislation and patent practice
Medium does not include electric carrier signal and telecommunication signal.
Based on the same inventive concept, the embodiment of the present application also provides a kind of electronic equipment, including memory and processor, deposits
The computer program run on a processor is stored on reservoir, is realized when processor executes computer program and is mentioned using ROADM
All method and steps or Part Methods step in the method for bloom network security performance.
Alleged processor can be central processing unit (Central Processing Unit, CPU), can also be it
His general processor, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng processor is the control centre of computer installation, using each portion of various interfaces and the entire computer installation of connection
Point.
Memory can be used for storing computer program and/or module, and processor is stored in memory by operation or execution
Interior computer program and/or module, and the data being stored in memory are called, realize the various function of computer installation
Energy.Memory can mainly include storing program area and storage data area, wherein storing program area can storage program area, at least
Application program needed for one function (such as sound-playing function, image player function etc.) etc.；Storage data area can store root
Created data (such as audio data, video data etc.) etc. are used according to mobile phone.In addition, memory may include high speed with
Machine accesses memory, can also include nonvolatile memory, such as hard disk, memory, plug-in type hard disk, intelligent memory card
(Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card (Flash Card), at least
One disk memory, flush memory device or other volatile solid-state parts.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system, server or calculating
Machine program product.Therefore, the present invention can be used complete hardware embodiment, complete software embodiment or combine software and hardware side
The form of the embodiment in face.Moreover, it wherein includes computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in computer-usable storage medium (including but not limited to magnetic disk storage and optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, equipment (system), server and computer program product
Flowchart and/or the block diagram describe.It should be understood that can be realized by computer program instructions in flowchart and/or the block diagram
The combination of process and/or box in each flow and/or block and flowchart and/or the block diagram.It can provide these calculating
Processing of the machine program instruction to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices
Device is to generate a machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute
For realizing the function of being specified in one or more flows of the flowchart and/or one or more blocks of the block diagram
Device.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of method for improving optical-fiber network security performance using ROADM, which comprises the following steps:
ROADM system is set in source node, the dynamic that the original signal entered by ROADM system docking carries out wavelength resource is matched
It sets, and phase code is carried out to original signal, the signal after phase code is transmitted to destination node in a network；
ROADM system is set in destination node, the signal after the phase code sent by ROADM system to source node carries out wavelength
The dynamic configuration of resource, and phase decoding is carried out to the signal after phase code and obtains original signal.
2. the method as described in claim 1, which is characterized in that it is described carry out wavelength resource dynamic configuration, specifically include with
Lower step: different central wavelength and bandwidth are selected, signal is filtered, and is transmitted separately to specified output port.
3. the method as described in claim 1, which is characterized in that the method also includes following steps: the ROADM system
Using wavelength selection cross-connect matrix WSXC, and the ROADM system is connected to the optical fiber link of multiple dimensions, each dimension
There are a pair of of input port, output port to be connected with other nodes；Increase input, output port number to increase ROADM system
Dimension.
4. the method as described in claim 1, which is characterized in that the method also includes following steps: the ROADM system is adopted
With the cross-connect matrix based on wavelength-selective switches WSS, and the ROADM system is connected to the optical fiber link of multiple dimensions,
Each dimension has a pair of of input port, output port to be connected with other nodes；Increase WSS to increase the dimension of ROADM system.
5. a kind of ROADM system for improving optical-fiber network security performance characterized by comprising ROADM cross-connect matrix is more
To input port, output port, multipair upper road port, lower road port and network management system；
Wherein, each input port, output port are connected respectively to a certain line direction；Each upper road port, lower road port pass through
ROADM cross-connect matrix is reconfigured to different line directions；Optical fiber link on a certain line direction passes through ROADM interconnection
Matrix is connected to other different line directions or certain once road port；
Network management system be used for control ROADM cross-connect matrix to signal carry out wavelength resource dynamic configuration, be also used to it is upper/
Lower road signal carries out phase code/decoding.
6. system as claimed in claim 5, it is characterised in that: the ROADM system is connected to the optical fiber link of multiple dimensions,
Each dimension has a pair of of input port, output port to be connected with other nodes.
7. system as claimed in claim 6, it is characterised in that: the ROADM cross-connect matrix is that wavelength selection intersects company
Meet matrix W SXC；Each upper road port, lower road port are reconfigured to different line directions by WSXC；The optical fiber link of certain dimension is logical
It crosses WSXC and is connected to different output port or certain once road port.
8. system as claimed in claim 6, it is characterised in that: the ROADM cross-connect matrix is to be opened based on wavelength selection
The cross-connect matrix of WSS, including N number of WSS and N number of fiber coupler are closed, each WSS includes an input terminal and N number of output
End；The input port of every dimension connects WSS input terminal, then different output ports is connected to by WSS output end, and each
The output port of dimension passes through the compound signal from different wave length selection switch of fiber coupler；
Each upper road port, lower road port reconstruct different line directions by WSS；The optical fiber link of certain dimension passes through WSS connection
To other different dimensions or certain once road port.
9. system as claimed in claim 5, it is characterised in that: the network management system controls ROADM cross-connect matrix is to letter
The dynamic configuration for number carrying out wavelength resource, specifically includes the following steps: the different central wavelength and bandwidth of selection, carries out signal
Filtering, and it is transmitted separately to specified output port.
10. system as claimed in claim 5, it is characterised in that: the network management system by general purpose interface bus, local area network,
Universal serial bus and system equipment carry out out-of-band communication.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110995359A (en) * | 2019-11-19 | 2020-04-10 | 武汉邮电科学研究院有限公司 | Phase modulation method and system based on digital DSP demodulation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868476A (en) * | 2012-09-12 | 2013-01-09 | 武汉邮电科学研究院 | ROADM (Reconfigurable Optical Add Drop Multiplexer) system for selecting cross-linking connection matrix based on wavelength |
| CN108111305A (en) * | 2017-12-29 | 2018-06-01 | 华南师范大学 | The converged network access system and method for polymorphic type quantum terminal compatibility |
| CN108494491A (en) * | 2018-03-08 | 2018-09-04 | 广西师范大学 | A kind of electric light encoding and decoding R-T unit and decoding method |
-
2019
- 2019-06-21 CN CN201910543863.6A patent/CN110247727A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868476A (en) * | 2012-09-12 | 2013-01-09 | 武汉邮电科学研究院 | ROADM (Reconfigurable Optical Add Drop Multiplexer) system for selecting cross-linking connection matrix based on wavelength |
| CN108111305A (en) * | 2017-12-29 | 2018-06-01 | 华南师范大学 | The converged network access system and method for polymorphic type quantum terminal compatibility |
| CN108494491A (en) * | 2018-03-08 | 2018-09-04 | 广西师范大学 | A kind of electric light encoding and decoding R-T unit and decoding method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110995359A (en) * | 2019-11-19 | 2020-04-10 | 武汉邮电科学研究院有限公司 | Phase modulation method and system based on digital DSP demodulation |
| CN110995359B (en) * | 2019-11-19 | 2021-05-14 | 武汉邮电科学研究院有限公司 | Phase modulation method and system based on digital DSP demodulation |
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