CN116683976A - Satellite communication optimal forwarding method and system based on least square method - Google Patents
Satellite communication optimal forwarding method and system based on least square method Download PDFInfo
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- 230000008447 perception Effects 0.000 claims description 6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application relates to the technical field of satellite communication, and discloses a satellite communication optimal forwarding method and system based on a least square method, wherein the technical scheme is characterized by comprising a modem and central network management equipment for optimal forwarding; the method comprises the following specific steps: the modem acquires an IP message service type value T in real time, and calculates a required application bandwidth B according to the acquired service type value T; the modem is connected with the narrow band, and the central network management equipment acquires an application bandwidth B through the narrow band; the central network management equipment calculates the residual bandwidth B on the satellite, and compares the residual bandwidth B on the satellite with the application bandwidth B; the central network management equipment judges the condition which accords with the forwarding, generates forwarding parameters and sends the forwarding parameters to the modem to finish the optimal forwarding; furthermore, under the emergency communication environment, communication service can be used without manually applying for a satellite link, so that the time for occupying emergency rescue is reduced.
Description
Technical Field
The application relates to the field of satellite communication, in particular to a satellite communication optimal forwarding method and system based on a least square method.
Background
In the prior art, the bandwidth of a satellite transponder is limited, and a user always needs to manually apply for forwarding to a central network management before using a satellite link each time; however, the central network manager also needs to manually process the application requirements, so that timeliness of bandwidth resource allocation and scheduling is reduced; therefore, in the emergency communication environment, the satellite link must be manually applied first, and then the communication service can be used, so that the emergency rescue time is wasted.
Therefore, the application provides a satellite communication optimal forwarding method and system based on a least square method, and the technical problems are improved.
Disclosure of Invention
The application aims to provide an optimal forwarding method and system for satellite communication based on a least square method, which solve the technical problems that in the prior art, the bandwidth of a satellite transponder is limited, forwarding is required to be manually applied to a central network manager, and timeliness of bandwidth resource allocation and scheduling is reduced.
The technical aim of the application is realized by the following technical scheme: a satellite communication optimal forwarding method and system based on least square method includes a modem and a central network management device for optimal forwarding; the method comprises the following steps:
s1, a modem acquires an IP message service type value T in real time, and calculates a required application bandwidth B according to the acquired service type value T;
s2, connecting the modem with a narrow band, and obtaining an application bandwidth B by the central network management equipment through the narrow band;
s3, the central network management equipment calculates the residual bandwidth B on the satellite, and compares the residual bandwidth B on the satellite with the application bandwidth B;
s4, the central network management equipment judges the condition which accords with the forwarding, generates forwarding parameters and sends the forwarding parameters to the modem to finish the optimal forwarding.
As a preferred technical solution of the present application, the central network management device includes: the system comprises a residual bandwidth calculation unit, a forwarding parameter generation unit, a narrowband control link communication unit and an optimal forwarding failure alarm; the residual bandwidth calculating unit is used for outputting the value of the residual bandwidth b to the central network management equipment; the forwarding parameter generating unit is used for outputting a forwarding parameter frequency point F and a bandwidth W to the central network management equipment; the narrowband control link communication unit is used for transmitting and receiving the optimally forwarded related control information to the modem; the optimal forwarding failure alarm is used for sending out an optimal forwarding failure alarm.
As a preferred technical solution of the present application, the specific value of the service type value T is determined by a protocol header of an IP packet and calculated by a modem;
the modem forwards each frame of IP message, copies the specific content of the frame and analyzes the data of the protocol header;
the modem establishes a protocol database and compares the acquired frame protocol header data with a protocol value in the database;
if the comparison is successful, determining a currently used protocol, and giving a specific value of a service type value T, wherein T is more than 0;
if the comparison fails, there is no specific value of the corresponding traffic type value T, then t=0.
As a preferred technical scheme of the application, the modem calculates the required application bandwidth B based on a machine learning algorithm; the machine learning algorithm to predict bandwidth errorIs a dependent variable; taking the difference value between the actual occupied bandwidth and the application bandwidth each time as an independent variableXThe method comprises the steps of carrying out a first treatment on the surface of the To->To correct the variable; the bandwidth error is formulated as: />；
According to n applications, useRepresenting the value of record X at the ith time, a cost function is obtained by the least square method
。
As a preferable mode of the application, theAt minimum, get +.>Values, and hence, optimizations->The value of the required application bandwidth B is +.>Wherein m is the iteration number, the bandwidth of the report is +.>。
As a preferred technical solution of the present application, the conditions for optimal forwarding include: determining the value of the residual bandwidth B, B > B; and then the T >0 perceived by the modem service, the optimal forwarding execution is successful;
determining the value of the residual bandwidth b, b<B, performing iterative training of the required bandwidth B in a circulating wayThe method comprises the steps of carrying out a first treatment on the surface of the When b>And B, the optimal forwarding is successfully executed.
As a preferred technical scheme of the application, after the optimal forwarding is successfully executed, the central network management equipment generates satellite communication forwarding parameters, wherein the parameters are a communication frequency point F and a bandwidth W, and the central network management equipment forwards the parameters to the modem equipment of both communication parties through a narrow-band control channel;
after the optimal forwarding execution fails, the modem records the iterative training times n after the failure, and when n is more than 10, the modem sends out an optimal forwarding failure alarm to the central network management equipment.
As a preferred technical scheme of the application, the optimally forwarded modem is used for service sensing and obtaining the value of T, and the T >0 calculates the required bandwidth B through machine learning and sends the value of B to the central network management equipment through a narrow-band control interface.
The satellite communication optimal forwarding system based on the least square method comprises an IP message interception and replication processor, a service type perception and identification unit, a machine learning processing unit, a narrow-band control link communication interface and a service data interface; the IP message interception and duplication processor is used for outputting the intercepted IP message to the modem; the service type perception and identification unit is used for outputting the value of the service type T to the modem; the machine learning processing unit is used for outputting the value of the required bandwidth B to the modem; the narrowband control link communication unit is used for reporting and receiving the related control information optimally forwarded to the central network management equipment; the narrowband control link communication interface is used for sending optimal forwarding control information to the central network management equipment; the service data interface is used for connecting the IP message interception and duplication processor and is used for receiving and forwarding the service information of the user.
In summary, the application has the following beneficial effects:
first, the application enables the modem service to sense T by determining the value of the residual bandwidth b>0, if the above condition is satisfied, the optimal forwarding execution is successful; determining the value of the real-time residual bandwidth b, if b<B, a step of preparing a composite material; iterative training of the bandwidth B required for loop execution without meeting the optimal forwarding condition，/>Until b is satisfied>B, the optimal forwarding is successfully executed; under the emergency communication environment, the communication service can be used without manually applying for a satellite link, so that the time for occupying emergency rescue is reduced.
After the optimal forwarding method is successfully executed, the central network management equipment generates satellite communication forwarding parameters, wherein the parameters comprise a communication frequency point F and a bandwidth W, and the central network management equipment transmits the forwarding parameters to the modem equipment of both communication parties through a narrow-band control channel.
Thirdly, after the optimal forwarding method of the application fails to be executed, the modem records the iterative training times n after failure, and when n is more than 10, the modem sends out an optimal forwarding failure alarm to the central network management equipment. The central network management equipment can conveniently alarm, and the abnormal condition can be manually and timely interfered.
Drawings
Fig. 1 is a flowchart of a satellite communication optimal forwarding method based on a least square method according to an embodiment of the present application.
Description of the embodiments
The present application will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present application, but are not intended to limit the application in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present application.
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It should be noted that, if not in conflict, the features of the embodiments of the present application may be combined with each other, which is within the protection scope of the present application. In addition, while functional block division is performed in a device diagram and logical order is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the block division in the device, or in the flowchart. Moreover, the words "first," "second," "third," and the like as used herein do not limit the data and order of execution, but merely distinguish between identical or similar items that have substantially the same function and effect.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
In addition, the technical features of the embodiments of the present application described below may be combined with each other as long as they do not collide with each other.
The embodiment of the disclosure aims at solving the problems that the traditional manual forwarding is poor in timeliness, manual intervention is needed and the like when satellite communication is used in the emergency communication background. In view of this, the embodiment of the disclosure provides an optimal forwarding method for satellite communication based on a least square method for evaluating the health condition of a maintenance store operation condition, and the method adopts big data ETL and an analysis technology to correspond to the complexity of the evaluation system of different types of users through configurable and differentiated factors, so as to achieve the purpose of reducing the implementation cost of the system.
Referring to fig. 1, fig. 1 shows a flowchart of a method for optimal forwarding of satellite communication based on a least square method according to an embodiment of the disclosure. The whole process mainly comprises the following 4 steps:
step 1: the modem acquires the service type value T of the IP message in real time, and calculates the required application bandwidth B according to the acquired service type value T.
The satellite communication modem acquires the IP message service type value T in real time. The value of T is determined by the protocol header of the IP message. The value of the traffic type T is calculated by the modem in real time. The modem software forwards each frame of IP message, copies the specific content of the frame and analyzes the data of the protocol header, a database of the service protocol is set up in all the software, the modem software compares the acquired data of the frame of the protocol header with the protocol value in the database, determines the protocol used by the current user, gives out the specific value of the service type T, T is more than 0, and if the comparison fails and no corresponding service exists, T=0.
Step 2: the modem is connected with the narrow band, and the central network management equipment acquires the application bandwidth B through the narrow band.
The satellite communication modem calculates the required bandwidth B according to the acquired service type T. The value of the bandwidth B required for the current user traffic is calculated by the modem in real time through machine learning. The bandwidth B required by the current user is trained for multiple iterations through machine learning, and the required bandwidth for success of the application is determinedValue of (5), finally->。
Calculating the required bandwidth B of the current service application based on a machine learning algorithm, wherein the key of a prediction model is to calculate the bandwidth error according to the history application record. To predict bandwidth error->As dependent variable, the difference between the bandwidth occupied by each time and the application bandwidth is taken as independent variableX，/>To correct the variables, the empirical formula model of the bandwidth error is:according to the n-time application record, use +.>Representing the value of record X at the i-th time, a cost function is obtained by the least square method +.>When->At minimum, get +.>Values, and hence, optimizations->The value of the required bandwidth is +.>And m is the iteration number, the bandwidth of the report is +.>。
Step 3: the central network management equipment calculates the on-board residual bandwidth B and compares the on-board residual bandwidth B with the application bandwidth B.
The satellite communication modem is often connected with the narrow-band control channel, and reports the bandwidth B required by the current communication service, and the central network management equipment acquires the bandwidth application B through the narrow-band control channel, and calculates and compares the residual bandwidth B on the satellite. The value of the residual bandwidth b on the satellite is calculated by the central network management equipment in real time.
Step 4: the central network management equipment judges the condition which accords with the forwarding, generates forwarding parameters and sends the forwarding parameters to the modem to finish the optimal forwarding.
If the current residual bandwidth B is larger than the application bandwidth B, the central network management equipment judges that the transmission condition is met, a transmission parameter is generated and is sent to the modem, and the optimal transmission is completed.
The requirements for executing the optimal forwarding method include: determining the value of the residual bandwidth b, and b>B. Further modem traffic aware T>0, if the above condition is satisfied, the optimal forwarding execution is successful; determining the value of the real-time residual bandwidth b, if b<B. Iterative training of the bandwidth B required for loop execution without meeting the optimal forwarding conditionUntil b is satisfied>And B, the optimal forwarding is successfully executed.
After the optimal forwarding method is successfully executed, the central network management equipment generates satellite communication forwarding parameters, wherein the parameters comprise a communication frequency point F and a bandwidth W, and the central network management equipment transmits the forwarding parameters to the modem equipment of both communication parties through a narrow-band control channel.
After the optimal forwarding method fails to be executed, the modem records the iterative training times n after the failure, and when n is more than 10, the modem sends out an optimal forwarding failure alarm to the central network management equipment. The central network management equipment can conveniently alarm, and the abnormal condition can be manually and timely interfered.
The embodiment of the disclosure also provides a satellite communication optimal forwarding system based on the least square method, which comprises an IP message interception and replication processor, a service type perception and identification unit, a machine learning processing unit, a narrow-band control link communication interface and a service data interface.
The IP message interception and duplication processor is used for outputting the intercepted IP message to the modem;
the service type perception and identification unit is used for outputting the value of the service type T to the modem;
the machine learning processing unit is used for outputting the value of the required bandwidth B to the modem;
the narrowband control link communication unit is used for reporting and receiving the related control information optimally forwarded to the central network management equipment;
the narrowband control link communication interface is used for sending optimal forwarding control information to the central network management equipment;
the service data interface is used for connecting the IP message interception and duplication processor and is used for receiving and forwarding the service information of the user.
The above description is only a preferred embodiment of the present application, and the protection scope of the present application is not limited to the above examples, and all technical solutions belonging to the concept of the present application belong to the protection scope of the present application. It should be noted that modifications and adaptations to the present application may occur to one skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.
Claims (9)
1. The optimal forwarding method for satellite communication based on the least square method is characterized by comprising a modem and a central network management device for optimal forwarding; the method comprises the following steps:
s1, a modem acquires an IP message service type value T in real time, and calculates a required application bandwidth B according to the acquired service type value T;
s2, connecting the modem with a narrow band, and obtaining an application bandwidth B by the central network management equipment through the narrow band;
s3, the central network management equipment calculates the residual bandwidth B on the satellite, and compares the residual bandwidth B on the satellite with the application bandwidth B;
s4, the central network management equipment judges the condition which accords with the forwarding, generates forwarding parameters and sends the forwarding parameters to the modem to finish the optimal forwarding.
2. The optimal forwarding method for satellite communication based on the least square method according to claim 1, wherein the optimal forwarding method is characterized in that: the central network management equipment comprises: the system comprises a residual bandwidth calculation unit, a forwarding parameter generation unit, a narrowband control link communication unit and an optimal forwarding failure alarm; the residual bandwidth calculating unit is used for outputting the value of the residual bandwidth b to the central network management equipment; the forwarding parameter generating unit is used for outputting a forwarding parameter frequency point F and a bandwidth W to the central network management equipment; the narrowband control link communication unit is used for transmitting and receiving the optimally forwarded related control information to the modem; the optimal forwarding failure alarm is used for sending out an optimal forwarding failure alarm.
3. The optimal forwarding method for satellite communication based on the least square method according to claim 1, wherein the optimal forwarding method is characterized in that: the specific value of the service type value T is determined by the protocol header of the IP message and calculated by the modem;
the modem forwards each frame of IP message, copies the specific content of the frame and analyzes the data of the protocol header;
the modem establishes a protocol database and compares the acquired frame protocol header data with a protocol value in the database;
if the comparison is successful, determining a currently used protocol, and giving a specific value of a service type value T, wherein T is more than 0;
if the comparison fails, there is no specific value of the corresponding traffic type value T, then t=0.
4. The optimal forwarding method for satellite communication based on the least square method according to claim 1, wherein the optimal forwarding method is characterized in that: the modem calculates a required application bandwidth B based on a machine learning algorithm; the machine learning algorithm to predict bandwidth errorIs a dependent variable; taking the difference value between the actual occupied bandwidth and the application bandwidth each time as an independent variableXThe method comprises the steps of carrying out a first treatment on the surface of the To->To correct the variable; the bandwidth error is formulated as: />；
According to n applications, useRepresenting the value of record X at the ith time, a cost function is obtained by the least square method
。
5. The optimal forwarding method for satellite communication based on the least square method according to claim 4, wherein the optimal forwarding method is characterized in that: the saidAt minimum, get +.>Values, and hence, optimizations->The value of the required application bandwidth B isWherein m is the iteration number, the bandwidth of the report is +.>。
6. The optimal forwarding method for satellite communication based on the least square method according to claim 1, wherein the optimal forwarding method is characterized in that: the conditions of the optimal forwarding include: determining the value of the residual bandwidth B, B > B; and then the T >0 perceived by the modem service, the optimal forwarding execution is successful;
determining the value of the residual bandwidth b, b<B, performing iterative training of the required bandwidth B in a circulating wayThe method comprises the steps of carrying out a first treatment on the surface of the When b>And B, the optimal forwarding is successfully executed.
7. The optimal forwarding method for satellite communication based on the least square method according to claim 1, wherein the optimal forwarding method is characterized in that: after the optimal forwarding is successfully executed, the central network management equipment generates satellite communication forwarding parameters, wherein the parameters are a communication frequency point F and a bandwidth W, and the central network management equipment forwards the parameters to the modem equipment of both communication parties through a narrow-band control channel;
after the optimal forwarding execution fails, the modem records the iterative training times n after the failure, and when n is more than 10, the modem sends out an optimal forwarding failure alarm to the central network management equipment.
8. The optimal forwarding method for satellite communication based on the least square method according to claim 1, wherein the optimal forwarding method is characterized in that: the optimal forwarding modem is used for service sensing and obtaining a value of T, and when T is more than 0, the required bandwidth B is calculated through machine learning and the value of B is sent to the central network management equipment through the narrow-band control interface.
9. The optimal forwarding system for satellite communication based on the least square method according to claim 1, wherein: the system is used for realizing the satellite communication optimal forwarding method based on the least square method according to any one of claims 1 to 7, and comprises an IP message interception and replication processor, a service type perception and identification unit, a machine learning processing unit, a narrow-band control link communication interface and a service data interface; the IP message interception and duplication processor is used for outputting the intercepted IP message to the modem; the service type perception and identification unit is used for outputting the value of the service type T to the modem; the machine learning processing unit is used for outputting the value of the required bandwidth B to the modem; the narrowband control link communication unit is used for reporting and receiving the related control information optimally forwarded to the central network management equipment; the narrowband control link communication interface is used for sending optimal forwarding control information to the central network management equipment; the service data interface is used for connecting the IP message interception and duplication processor and is used for receiving and forwarding the service information of the user.
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