CN110831039A - Data transmission method and transmission server in multi-path concurrent system - Google Patents

Data transmission method and transmission server in multi-path concurrent system Download PDF

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CN110831039A
CN110831039A CN201911144590.4A CN201911144590A CN110831039A CN 110831039 A CN110831039 A CN 110831039A CN 201911144590 A CN201911144590 A CN 201911144590A CN 110831039 A CN110831039 A CN 110831039A
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network
communication link
data
transmission
service type
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张凯
郑应强
阎威
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Beijing Lianshan Polytron Technologies Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0215—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay

Abstract

The invention discloses a data transmission method and a transmission server in a multi-path concurrent system, wherein the data transmission method comprises the following steps: detecting the communication condition of each communication device in a multi-path concurrent system, and acquiring the current network quality corresponding to a communication link in the multi-path concurrent system; according to the obtained current network quality, selecting a pre-configured application strategy matched with the current network quality for the communication link by referring to current transmission data on the communication link; according to the selected application strategy, carrying out data transmission on the communication link; the aim of adaptively selecting the application strategy for data transmission according to the current network quality is fulfilled, and the network transmission efficiency and the transmission reliability of the multi-channel concurrent system are improved; for the user side, the user experience and the man-machine interaction are improved.

Description

Data transmission method and transmission server in multi-path concurrent system
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a data transmission method and a transmission server in a multi-path concurrent system.
Background
In a communication network, the existing communication networks are mostly single links; colloquially, it can also be understood that: what the data has is sent. Common multi-path concurrent systems also divide services in most cases, and transmit data independently or in turn on different paths, and when data loss is detected, some communication systems may also perform data retransmission.
Currently, for a communication system that divides and transmits services, this type of communication system cannot increase bandwidth for a specific service, and communication data during transmission can be retransmitted only after data loss, and in such a case of data loss, the communication link is usually degraded, and retransmitting data only increases the data transmission load of the degraded communication link, thereby further degrading the communication link, and thus entering a vicious circle of communication.
Disclosure of Invention
In order to solve the above problems, the present invention provides a data transmission method and a transmission server in a multi-path concurrent system, which are used to correspondingly adopt different application strategies according to the communication quality of a communication link, so as to improve the network transmission efficiency and the transmission reliability of the multi-path concurrent system.
The invention provides a data transmission method in a multi-channel concurrent system, which comprises the following steps:
detecting the communication condition of each communication device in a multi-path concurrent system, and acquiring the current network quality corresponding to a communication link in the multi-path concurrent system;
according to the obtained current network quality, selecting a pre-configured application strategy matched with the current network quality for the communication link by referring to current transmission data on the communication link;
and transmitting data on the communication link according to the selected application strategy.
Further, the detecting a communication condition of each communication device in the multi-path concurrent system, and acquiring a current network quality corresponding to a communication link in the multi-path concurrent system, includes:
detecting the communication condition of each communication device in a multi-path concurrent system, and acquiring the network bandwidth, network delay, network jitter and packet loss rate corresponding to each communication link in the multi-path concurrent system;
and acquiring the current network quality corresponding to the communication link according to the network bandwidth, the network delay, the network jitter and the packet loss rate corresponding to the communication link.
Further, the selecting, according to the obtained current network quality and referring to current transmission data on the communication link, a preconfigured application policy for the communication link that matches the current network quality includes:
identifying a service type corresponding to the data transmitted on the communication link according to the current data transmitted on the communication link;
acquiring a network threshold value corresponding to the network quality required by the service type according to the identified service type;
selecting an application strategy matched with the current network quality and the required network threshold value for the communication link according to the acquired required network threshold values respectively corresponding to the current network quality and the service type;
wherein the application policy comprises:
an application strategy for improving the network bandwidth by adopting a particle swarm optimization algorithm;
and/or an application strategy for reducing the data packet loss rate by adopting a link multiplexing algorithm.
Further, the obtaining a network threshold corresponding to the network quality required by the service type according to the identified service type includes:
if the service type is as follows: if the service type has a high requirement on transmission timeliness and a small transmission data volume, acquiring a network threshold value corresponding to the network quality required by the service type is as follows: the network delay is smaller than a preset delay threshold and/or the network jitter is smaller than a preset jitter threshold;
if the service type is as follows: if the service type has a high requirement on the reliability of the transmitted data packet, the network threshold value corresponding to the network quality required for acquiring the service type is: the network packet loss rate is smaller than a preset packet loss threshold;
if the service type is as follows: if the service type has a high requirement on transmission timeliness and a large transmission quantity, the network threshold value corresponding to the network quality required by the service type is acquired as follows: the network bandwidth is greater than a preset bandwidth threshold.
Further, the selecting, according to the acquired required network threshold values respectively corresponding to the current network quality and the service type, an application policy matching the current network quality and the required network threshold value for the communication link includes:
according to the acquired network parameters of the network bandwidth, the network delay, the network jitter and the packet loss rate which can represent the current network quality, respectively corresponding required network thresholds according to the service types, and if the required network thresholds require that the network bandwidth is not lower than a preset bandwidth threshold, the application strategy of the network bandwidth is improved by adopting a particle swarm optimization algorithm according to the parameter of the network bandwidth corresponding to the current network quality;
if the required network threshold requires that the network packet loss rate is smaller than a preset packet loss threshold, an application strategy for reducing the data packet loss rate by adopting a link multiplexing algorithm is adopted by referring to the parameter of the packet loss rate corresponding to the current network quality;
and if the required network threshold value requires that the network delay is smaller than a preset delay threshold value and/or the network jitter is smaller than a preset jitter threshold value, referring to two parameters, namely the network delay and the network jitter, corresponding to the current network quality, and adopting a particle swarm optimization algorithm to improve the network bandwidth and the network transmission rate.
Further, the identifying, according to the current transmission data on the communication link, a service type corresponding to the transmission data on the communication link includes:
integrating all conditions corresponding to data transmission on a communication link, and dividing service types corresponding to the data transmission into an alternating current class, an interactive class, a medium class and a composite class;
according to different requirements of different service types on four indexes of network bandwidth, network delay, network jitter and packet loss rate, a requirement matrix H is constructed, and the method comprises the following steps:
Figure BDA0002281824110000044
wherein h isijRepresenting the value of each index corresponding to the service, and s represents the classic-based dimension of the network characteristic index;
based on a classical hierarchical analysis algorithm, optimization is carried out on weight setting, and the degree of reflection rho is introducediThen, there are:
Figure BDA0002281824110000041
degree of reflection ρiHas the effect of eliminating redundancy in the information to obtain an average information quantity, a reflection piThe weight of (A) is:
Figure BDA0002281824110000042
and identifying the service type corresponding to the transmission data on the communication link according to the value obtained by linear addition of the weight and the characteristic factor and as the basis of the network for identifying different service input streams.
Further, the application strategy for improving the network bandwidth by adopting the particle swarm optimization algorithm includes:
optimizing network distribution transmission according to service requirements;
because the data packet transmission process conforms to the poisson process, the weight calculation method is combined and modeling is carried out based on the theory of the application random process, and the following steps are carried out:
Figure BDA0002281824110000043
wherein, theta (tau) represents a benefit value, namely an objective function to be optimized, and represents the service quality of the system; tau isiTraffic arrival rate, μ, representing network iiRepresenting that the response speed of the network i obeys the Poisson distribution service rate; t isiIs the real-time system period of each network;
solving by adopting an improved particle swarm optimization algorithm, the method comprises the following steps:
Figure BDA0002281824110000055
Figure BDA0002281824110000052
Figure BDA0002281824110000053
where k is the number of iterations, ρkIs the inertial weight, dis, used by the particle at the kth iterationkRepresenting a delta from the optimal position occurring in the previous iteration,
Figure BDA0002281824110000054
is the fitness value of particle i after the kth iteration.
In order to achieve the above object, the present invention further provides a transmission server, which is applied in the multi-path concurrent system and can execute the data transmission method in the multi-path concurrent system;
the transmission server comprises a memory and a processor, wherein the memory stores a data transmission program in a multi-path concurrent system which can run on the processor, and the data transmission program realizes the following steps when being run by the processor:
detecting the communication condition of each communication device in a multi-path concurrent system, and acquiring the current network quality corresponding to a communication link in the multi-path concurrent system;
according to the obtained current network quality, selecting a pre-configured application strategy matched with the current network quality for the communication link by referring to current transmission data on the communication link;
and transmitting data on the communication link according to the selected application strategy.
Further, the data transmission program may be further executable by the processor to select, according to the obtained current network quality, a preconfigured application policy for the communication link that matches the current network quality with reference to current transmission data on the communication link, including:
identifying a service type corresponding to the data transmitted on the communication link according to the current data transmitted on the communication link;
acquiring a network threshold value corresponding to the network quality required by the service type according to the identified service type;
and selecting an application strategy matched with the current network quality and the required network threshold value for the communication link according to the acquired required network threshold values respectively corresponding to the current network quality and the service type.
Further, the data transmission program may be further executed by the processor to identify a service type corresponding to data transmitted on the communication link according to current data transmitted on the communication link, including:
integrating all conditions corresponding to data transmission on a communication link, and dividing service types corresponding to the data transmission into an alternating current class, an interactive class, a medium class and a composite class;
according to different requirements of different service types on four indexes of network bandwidth, network delay, network jitter and packet loss rate, a requirement matrix H is constructed, and the method comprises the following steps:
Figure BDA0002281824110000061
wherein h isijRepresenting the value of each index corresponding to the service, and s represents the classic-based dimension of the network characteristic index;
based on a classical hierarchical analysis algorithm, optimization is carried out on weight setting, and the degree of reflection rho is introducediThen, there are:
Figure BDA0002281824110000062
degree of reflection ρiHas the effect of eliminating redundancy in the information to obtain an average information quantity, a reflection piThe weight of (A) is:
Figure BDA0002281824110000063
according to the value obtained by linear addition of the weight and the characteristic factor, the value is used as the basis for identifying different service input streams by the network, and the service type corresponding to the transmission data on the communication link is identified;
wherein the data transmission program can be further run by the processor to adopt a particle swarm optimization algorithm to improve an application strategy of a network bandwidth, and the application strategy comprises the following steps:
optimizing network distribution transmission according to service requirements;
because the data packet transmission process conforms to the poisson process, the weight calculation method is combined and modeling is carried out based on the theory of the application random process, and the following steps are carried out:
wherein, theta (tau) represents a benefit value, namely an objective function to be optimized, and represents the service quality of the system; tau isiTraffic arrival rate, μ, representing network iiRepresenting that the response speed of the network i obeys the Poisson distribution service rate; t isiIs the real-time system period of each network;
solving by adopting an improved particle swarm optimization algorithm, the method comprises the following steps:
Figure BDA0002281824110000072
Figure BDA0002281824110000074
where k is the number of iterations, ρkIs the inertial weight, dis, used by the particle at the kth iterationkRepresenting a delta from the optimal position occurring in the previous iteration,
Figure BDA0002281824110000075
is the fitness value of particle i after the kth iteration.
The data transmission method and the transmission server in the multi-channel concurrent system can achieve the following beneficial effects:
detecting the communication condition of each communication device in a multi-path concurrent system, and acquiring the current network quality corresponding to a communication link in the multi-path concurrent system; according to the obtained current network quality, selecting a pre-configured application strategy matched with the current network quality for the communication link by referring to current transmission data on the communication link; according to the selected application strategy, carrying out data transmission on the communication link; the aim of adaptively selecting the application strategy for data transmission according to the current network quality is fulfilled, and the network transmission efficiency and the transmission reliability of the multi-channel concurrent system are improved; for the user side, the user experience and the man-machine interaction are improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described below by means of the accompanying drawings and examples.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart illustrating an embodiment of a data transmission method in a multi-channel concurrent system according to the present invention;
fig. 2 is a schematic internal structure diagram of an embodiment of the transmission server of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The invention provides a data transmission method and a transmission server in a multi-channel concurrent system, which are used for correspondingly adopting different application strategies according to the communication quality of a communication link, thereby realizing that: when the communication link quality is good, the bandwidth of a plurality of network links can be improved; when the communication link quality is poor, the network packet loss rate can be reduced by several orders of magnitude, and the user experience is effectively improved; in some areas with extremely bad communication conditions, the data transmission method and the transmission server in the multi-path concurrent system provided by the invention can also effectively ensure that a user uses the multi-path concurrent system, and improve the network transmission efficiency and the transmission reliability of the multi-path concurrent system.
As shown in fig. 1, fig. 1 is a schematic flow chart of an embodiment of a data transmission method in a multi-path concurrent system according to the present invention; the data transmission method in the multi-path concurrent system according to the present invention may be implemented as steps S10-S30 described as follows:
step S10, detecting the communication condition of each communication device in the multi-path concurrent system, and acquiring the current network quality corresponding to the communication link in the multi-path concurrent system;
in the embodiment of the invention, in the multi-path concurrent system, the communication condition of each communication device in communication connection with the transmission server is detected, so that the current network quality corresponding to the communication link in the multi-path concurrent system is obtained.
In one embodiment, the network quality may be quantified by parameters such as network bandwidth, network latency, network jitter, and packet loss rate. Therefore, when detecting the communication condition of each communication device in the multi-path concurrent system, the current network quality of each communication link can be measured by acquiring the network bandwidth, the network delay, the network jitter and the packet loss rate of the communication link corresponding to each communication device in the multi-path concurrent system.
Further, in an embodiment, the communication condition of each communication device in the multi-path concurrent system may be detected in real time or according to a preset period, so as to obtain the current network quality of each communication link. Under the condition that the network bandwidth is allowed and the requirement on the matching accuracy of the application strategy is high, the detection of the communication condition of each communication device in the multi-path concurrent system can be implemented. In consideration of the problem of saving network bandwidth, and the requirement on the matching accuracy of the application strategy is not high, in a specific application scene, network detection of a multi-channel concurrent system can be selected according to a preset period; and the specific duration of the preset period can be valued according to the specific requirements of different application scenarios, and the specific value of the preset period is not limited in the embodiment of the invention.
Step S20, according to the obtained current network quality, referring to the current transmission data on the communication link, selecting a pre-configured application strategy matched with the current network quality for the communication link;
and step S30, transmitting data on the communication link according to the selected application strategy.
In the embodiment of the invention, when the communication link is matched with the pre-configured application strategy according to the acquired current network quality, the service type corresponding to the data transmitted on the communication link is also an important reference which needs to be considered when the application strategy is matched.
In an embodiment, in step S20, the selecting, according to the obtained current network quality and referring to the current transmission data on the communication link, a preconfigured application policy matching the current network quality for the communication link may be implemented as follows:
identifying a service type corresponding to the data transmitted on the communication link according to the current data transmitted on the communication link;
acquiring a network threshold value corresponding to the network quality required by the service type according to the identified service type;
and selecting an application strategy matched with the current network quality and the required network threshold value for the communication link according to the acquired required network threshold values respectively corresponding to the current network quality and the service type.
According to the embodiment of the invention, the corresponding application strategy is matched by identifying the service type of the transmission data and according to the required network threshold value of the service type for the network quality requirement.
In a specific application scenario, the application policy includes, but is not limited to: an application strategy for improving the network bandwidth by adopting a particle swarm optimization algorithm; and/or an application strategy for reducing the data packet loss rate by adopting a link multiplexing algorithm. The multi-path concurrent system can configure the corresponding application strategy according to the specific application scene, the network quality, the service type transmitted on the communication link and the service requirement, and the embodiment of the invention does not perform one-to-one exhaustion and limitation on the specific configuration and the specific strategy content of the application strategy.
In an embodiment, the multi-path concurrent system obtains a network threshold corresponding to the network quality required by the service type according to the identified service type, and may be implemented as follows:
if the service type is as follows: if the service type has a high requirement on transmission timeliness and a small transmission data volume, acquiring a network threshold value corresponding to the network quality required by the service type is as follows: the network delay is smaller than a preset delay threshold and/or the network jitter is smaller than a preset jitter threshold;
if the service type is as follows: if the service type has a high requirement on the reliability of the transmitted data packet, the network threshold value corresponding to the network quality required for acquiring the service type is: the network packet loss rate is smaller than a preset packet loss threshold;
if the service type is as follows: if the service type has a high requirement on transmission timeliness and a large transmission quantity, the network threshold value corresponding to the network quality required by the service type is acquired as follows: the network bandwidth is greater than a preset bandwidth threshold.
Those skilled in the art can understand that, the number of transmission data layers that can be transmitted on each communication link in the multi-path concurrent system is infinite, the service types corresponding to different transmission data are also various, and the required network threshold values corresponding to different service types are different, so that the embodiments of the present invention do not perform one-to-one exhaustion on the service types corresponding to the transmission data on each communication link in the multi-path concurrent system, and the required network threshold values corresponding to different service types and the required network threshold values corresponding to the same service type are different in different application scenarios.
Illustratively, in a specific application scenario, the selecting, for the communication link, an application policy that matches the current network quality and the required network threshold according to the required network thresholds respectively corresponding to the obtained current network quality and the obtained service type may be implemented as follows:
according to the acquired network parameters of the network bandwidth, the network delay, the network jitter and the packet loss rate which can represent the current network quality, respectively corresponding required network thresholds according to the service types, and if the required network thresholds require that the network bandwidth is not lower than a preset bandwidth threshold, the application strategy of the network bandwidth is improved by adopting a particle swarm optimization algorithm according to the parameter of the network bandwidth corresponding to the current network quality;
if the required network threshold requires that the network packet loss rate is smaller than a preset packet loss threshold, an application strategy for reducing the data packet loss rate by adopting a link multiplexing algorithm is adopted by referring to the parameter of the packet loss rate corresponding to the current network quality;
and if the required network threshold value requires that the network delay is smaller than a preset delay threshold value and/or the network jitter is smaller than a preset jitter threshold value, referring to two parameters, namely the network delay and the network jitter, corresponding to the current network quality, and adopting a particle swarm optimization algorithm to improve the network bandwidth and the network transmission rate.
Further, in the embodiment of the present invention, in order to make each application policy preconfigured in the multi-path concurrent system more specific, a corresponding application policy may be preconfigured for a communication link of the multi-path concurrent system according to a historical parameter of network quality corresponding to each communication link in the multi-path concurrent system and with reference to a historical service type triggered in the multi-path concurrent system.
The application strategies pre-configured in the multi-path concurrent system comprise one or more application strategies, and when a plurality of application strategies exist, one application strategy can be selected for use alone or a plurality of application strategies can be selected for combined use at the same time according to the specific network quality currently corresponding to the multi-path concurrent system. The embodiment of the invention does not perform one-to-one exhaustion and limitation on the configuration quantity of the application strategies and the use combination mode of a plurality of different application strategies.
Further, in an embodiment of the present invention, the identifying a service type corresponding to data transmitted on the communication link according to current data transmitted on the communication link may be implemented as follows:
all the conditions are integrated, and all the service types are classified into an alternating current class, an interactive class, a medium class and a composite class. And constructing a requirement matrix H according to different requirements of different service types on four indexes, namely network bandwidth, network delay, network jitter and packet loss rate.
The requirements of different service types on four indexes are shown in the following table:
Figure BDA0002281824110000121
the constructed demand matrix H is:
Figure BDA0002281824110000122
wherein h isijRepresenting the value of each index corresponding to the service, and s represents the classic-based dimension of the network characteristic index;
based on a classical hierarchical analysis algorithm, optimization is carried out on weight setting, and the degree of reflection rho is introducediThen, there are:
degree of reflection ρiHas the effect of eliminating redundancy in the information to obtain an average information quantity, a reflection piThe weight of (A) is:
Figure BDA0002281824110000124
and the value obtained by linear addition of the weight and the characteristic factor is used as the basis for identifying different service input streams by the network.
For the transmission rate optimization modeling, there are:
the multi-path concurrent system is connected with networks with different characteristics, and the system can automatically optimize network distribution transmission according to service requirements through the established algorithm model. Because the data packet transmission process conforms to the poisson process, modeling can be performed based on the theory of applying a random process in combination with the weight calculation method, and the following are provided:
Figure BDA0002281824110000131
wherein, θ (τ) represents the benefit value, i.e. the objective function we want to optimize, and represents the system service quality; tau isiTraffic arrival rate, μ, representing network iiRepresenting that the response speed of the network i obeys the Poisson distribution service rate; t isiIs the real-time system period of each network.
Improving a particle swarm optimization algorithm:
because the problem to be solved is a convex optimization problem, an improved particle swarm optimization algorithm can be adopted to solve the problem, and the following steps are provided:
Figure BDA0002281824110000132
Figure BDA0002281824110000133
Figure BDA0002281824110000134
where k is the number of iterations, ρkIs the inertial weight, dis, used by the particle at the kth iterationkRepresenting a delta from the optimal position occurring in the previous iteration,
Figure BDA0002281824110000135
is the fitness value of particle i after the kth iteration.
Applying the established algorithm model to a specific application scene, the following steps are performed:
through a weight calculation formula given in the service identification, a service weight table is obtained as follows:
Figure BDA0002281824110000136
Figure BDA0002281824110000141
the consistency parameters of the four items of network bandwidth, network delay, network jitter and packet loss rate are respectively 0.063, 0.070, 0.011 and 0.045, which are less than 0.1, so that the requirement of consistency is met.
Iteratively using an improved algorithm in conjunction with the model to set ρmax＝0.8，ρminThe particle population size n is 40, the dimension m is 25, and the iteration is stopped when the number of iterations is 50. Andcompared with the scheme of a single network, the transmission strategy corresponding to the particle swarm optimization algorithm enables the packet loss rate to be reduced by 4.3% on average and the bandwidth to be improved by 2.6% on average.
Because the information entropy theory and the actual utility are integrated in the service identification module, unnecessary data redundancy in information transmission is reduced, the service identification recognition degree is higher, dynamic scheme switching of subsequent steps is reduced, the requirements of users are better met, and the ping-pong effect is reduced. In a network scheme design model, the improved particle swarm optimization algorithm effectively avoids the situation that local optimization is inferior to global optimization, the convergence of the algorithm is accelerated, the network coverage performance is optimized, and the packet loss rate and the bandwidth of transmission are greatly improved.
The data transmission method in the multi-channel concurrent system detects the communication condition of each communication device in the multi-channel concurrent system and obtains the current network quality corresponding to a communication link in the multi-channel concurrent system; according to the obtained current network quality, selecting a pre-configured application strategy matched with the current network quality for the communication link by referring to current transmission data on the communication link; according to the selected application strategy, carrying out data transmission on the communication link; the aim of adaptively selecting the application strategy for data transmission according to the current network quality is fulfilled, and the network transmission efficiency and the transmission reliability of the multi-channel concurrent system are improved; for the user side, the user experience and the man-machine interaction are improved.
Corresponding to the data transmission method in the multi-path concurrent system provided in the embodiment of fig. 1, the present invention further provides a transmission server, as shown in fig. 2, and fig. 2 is a schematic internal structure diagram of an implementation manner of the transmission server of the present invention. The transmission server may be deployed in the multi-path concurrent system described in the embodiment of fig. 1, and may perform the data transmission method in the multi-path concurrent system provided in the embodiment of fig. 1, so as to achieve the object of the present invention.
As shown in fig. 2, in the embodiment of the present invention, the transmission server 1 may be a PC (Personal Computer), or may be a terminal device such as a tablet Computer or a portable Computer. The transmission server 1 comprises at least a memory 11, a processor 12, a communication bus 13, and a network interface 14.
The memory 11 includes at least one type of readable storage medium, which includes a flash memory, a hard disk, a multimedia card, a card type memory (e.g., SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, and the like. The memory 11 may in some embodiments be an internal storage unit of the transport server 1, for example a hard disk of the transport server 1. The memory 11 may also be an external storage device of the transmission server 1 in other embodiments, such as a plug-in hard disk provided on the transmission server 1, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the memory 11 may also include both an internal storage unit of the transmission server 1 and an external storage device. The memory 11 may be used not only to store application software installed in the transmission server 1 and various types of data, such as a code of the data transmission program 01 in the multiplex concurrent transmission system, but also to temporarily store data that has been output or is to be output.
The processor 12 may be a Central Processing Unit (CPU), a controller, a microcontroller, a microprocessor or other data Processing chip in some embodiments, and is used to execute program codes stored in the memory 11 or process data, for example, execute the data transmission program 01 in the multi-channel concurrent system.
The communication bus 13 is used to realize connection communication between these components.
The network interface 14 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), typically used to establish a communication link between the apparatus 1 and other electronic devices.
Optionally, the apparatus 1 may further comprise a user interface, which may comprise a Display (Display), an input unit such as a Keyboard (Keyboard), and optionally a standard wired interface, a wireless interface. Alternatively, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, or the like. The display, which may also be referred to as a display screen or display unit, is suitable for displaying information processed in the transmission server 1 and for displaying a visual user interface.
Fig. 2 shows only the transmission server 1 with the components 11-14 and the data transmission program 01, and it will be understood by those skilled in the art that the structure shown in fig. 2 does not constitute a limitation of the transmission server 1, and may include fewer or more components than those shown, or combine some components, or a different arrangement of components.
Based on the description of the above embodiment, in the embodiment of the apparatus 1 shown in fig. 2, the memory 11 stores therein the data transfer program 01; the data transmission program 01 stored in the memory 11 can be executed on the processor 12, and when the data transmission program 01 is executed by the processor 12, the following steps are implemented:
detecting the communication condition of each communication device in a multi-path concurrent system, and acquiring the current network quality corresponding to a communication link in the multi-path concurrent system;
according to the obtained current network quality, selecting a pre-configured application strategy matched with the current network quality for the communication link by referring to current transmission data on the communication link;
and transmitting data on the communication link according to the selected application strategy.
In one embodiment, the data transmission program is further executable by the processor to detect a communication condition of each communication device in a multi-path concurrent system, and obtain a current network quality corresponding to a communication link in the multi-path concurrent system, including:
detecting the communication condition of each communication device in a multi-path concurrent system, and acquiring the network bandwidth, network delay, network jitter and packet loss rate corresponding to each communication link in the multi-path concurrent system;
and acquiring the current network quality corresponding to the communication link according to the network bandwidth, the network delay, the network jitter and the packet loss rate corresponding to the communication link.
In one embodiment, the applying the policy comprises:
an application strategy for improving the network bandwidth by adopting a particle swarm optimization algorithm;
and/or an application strategy for reducing the data packet loss rate by adopting a link multiplexing algorithm.
In one embodiment, the data transmission program is further executable by the processor to select a preconfigured application policy for the communication link that matches the current network quality with reference to currently transmitted data on the communication link according to the obtained current network quality, and the selecting includes:
identifying a service type corresponding to the data transmitted on the communication link according to the current data transmitted on the communication link;
acquiring a network threshold value corresponding to the network quality required by the service type according to the identified service type;
and selecting an application strategy matched with the current network quality and the required network threshold value for the communication link according to the acquired required network threshold values respectively corresponding to the current network quality and the service type.
In an embodiment, the data transmission program is further executable by the processor to obtain, according to the identified service type, a network threshold corresponding to a network quality required by the service type, and includes:
if the service type is as follows: if the service type has a high requirement on transmission timeliness and a small transmission data volume, acquiring a network threshold value corresponding to the network quality required by the service type is as follows: the network delay is smaller than a preset delay threshold and/or the network jitter is smaller than a preset jitter threshold;
if the service type is as follows: if the service type has a high requirement on the reliability of the transmitted data packet, the network threshold value corresponding to the network quality required for acquiring the service type is: the network packet loss rate is smaller than a preset packet loss threshold;
if the service type is as follows: if the service type has a high requirement on transmission timeliness and a large transmission quantity, the network threshold value corresponding to the network quality required by the service type is acquired as follows: the network bandwidth is greater than a preset bandwidth threshold.
In an embodiment, the data transmission program is further executable by the processor to select, according to the acquired required network threshold values respectively corresponding to the current network quality and the service type, an application policy matching the current network quality and the required network threshold value for the communication link, and the method includes:
according to the acquired network parameters of the network bandwidth, the network delay, the network jitter and the packet loss rate which can represent the current network quality, respectively corresponding required network thresholds according to the service types, and if the required network thresholds require that the network bandwidth is not lower than a preset bandwidth threshold, the application strategy of the network bandwidth is improved by adopting a particle swarm optimization algorithm according to the parameter of the network bandwidth corresponding to the current network quality;
if the required network threshold requires that the network packet loss rate is smaller than a preset packet loss threshold, an application strategy for reducing the data packet loss rate by adopting a link multiplexing algorithm is adopted by referring to the parameter of the packet loss rate corresponding to the current network quality;
and if the required network threshold value requires that the network delay is smaller than a preset delay threshold value and/or the network jitter is smaller than a preset jitter threshold value, referring to two parameters, namely the network delay and the network jitter, corresponding to the current network quality, and adopting a particle swarm optimization algorithm to improve the network bandwidth and the network transmission rate.
In one embodiment, the data transfer program is further executable by the processor to perform the steps of:
and according to the historical parameters of the network quality corresponding to each communication link in the multi-path concurrent system, referring to the historical service type triggered in the multi-path concurrent system, and pre-configuring a corresponding application strategy for the communication link of the multi-path concurrent system.
In one embodiment, the data transmission program is further executable by the processor to identify a service type corresponding to data transmitted on the communication link according to current data transmitted on the communication link, and includes:
integrating all conditions corresponding to data transmission on a communication link, and dividing service types corresponding to the data transmission into an alternating current class, an interactive class, a medium class and a composite class;
according to different requirements of different service types on four indexes of network bandwidth, network delay, network jitter and packet loss rate, a requirement matrix H is constructed, and the method comprises the following steps:
wherein h isijRepresenting the value of each index corresponding to the service, and s represents the classic-based dimension of the network characteristic index;
based on a classical hierarchical analysis algorithm, optimization is carried out on weight setting, and the degree of reflection rho is introducediThen, there are:
degree of reflection ρiHas the effect of eliminating redundancy in the information to obtain an average information quantity, a reflection piThe weight of (A) is:
Figure BDA0002281824110000191
according to the value obtained by linear addition of the weight and the characteristic factor, the value is used as the basis for identifying different service input streams by the network, and the service type corresponding to the transmission data on the communication link is identified;
wherein the data transmission program can be further run by the processor to adopt a particle swarm optimization algorithm to improve an application strategy of a network bandwidth, and the application strategy comprises the following steps:
optimizing network distribution transmission according to service requirements;
because the data packet transmission process conforms to the poisson process, the weight calculation method is combined and modeling is carried out based on the theory of the application random process, and the following steps are carried out:
wherein, theta (tau) represents a benefit value, namely an objective function to be optimized, and represents the service quality of the system; tau isiTraffic arrival rate, μ, representing network iiRepresenting that the response speed of the network i obeys the Poisson distribution service rate; t isiIs the real-time system period of each network;
solving by adopting an improved particle swarm optimization algorithm, the method comprises the following steps:
Figure BDA0002281824110000197
Figure BDA0002281824110000193
Figure BDA0002281824110000194
Figure BDA0002281824110000195
where k is the number of iterations, ρkIs the inertial weight, dis, used by the particle at the kth iterationkRepresenting a delta from the optimal position occurring in the previous iteration,
Figure BDA0002281824110000196
is the fitness value of particle i after the kth iteration.
The transmission server detects the communication condition of each communication device in a multi-channel concurrent system and acquires the current network quality corresponding to a communication link in the multi-channel concurrent system; according to the obtained current network quality, selecting a pre-configured application strategy matched with the current network quality for the communication link by referring to current transmission data on the communication link; according to the selected application strategy, carrying out data transmission on the communication link; the aim of adaptively selecting the application strategy for data transmission according to the current network quality is fulfilled, and the network transmission efficiency and the transmission reliability of the multi-channel concurrent system are improved; for the user side, the user experience and the man-machine interaction are improved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A data transmission method in a multi-path concurrent system, the data transmission method comprising:
detecting the communication condition of each communication device in a multi-path concurrent system, and acquiring the current network quality corresponding to a communication link in the multi-path concurrent system;
according to the obtained current network quality, selecting a pre-configured application strategy matched with the current network quality for the communication link by referring to current transmission data on the communication link;
and transmitting data on the communication link according to the selected application strategy.
2. The data transmission method in the multiple concurrent system according to claim 1, wherein the detecting the communication condition of each communication device in the multiple concurrent system and obtaining the current network quality corresponding to the communication link in the multiple concurrent system includes:
detecting the communication condition of each communication device in a multi-path concurrent system, and acquiring the network bandwidth, network delay, network jitter and packet loss rate corresponding to each communication link in the multi-path concurrent system;
and acquiring the current network quality corresponding to the communication link according to the network bandwidth, the network delay, the network jitter and the packet loss rate corresponding to the communication link.
3. The data transmission method in the multi-path concurrent system according to claim 1 or 2, wherein the selecting a preconfigured application policy for the communication link matching the current network quality with reference to the current transmission data on the communication link according to the obtained current network quality comprises:
identifying a service type corresponding to the data transmitted on the communication link according to the current data transmitted on the communication link;
acquiring a network threshold value corresponding to the network quality required by the service type according to the identified service type;
selecting an application strategy matched with the current network quality and the required network threshold value for the communication link according to the acquired required network threshold values respectively corresponding to the current network quality and the service type;
wherein the application policy comprises:
an application strategy for improving the network bandwidth by adopting a particle swarm optimization algorithm;
and/or an application strategy for reducing the data packet loss rate by adopting a link multiplexing algorithm.
4. The data transmission method in the multiple concurrent systems according to claim 3, wherein the obtaining a network threshold corresponding to the network quality required by the service type according to the identified service type includes:
if the service type is as follows: if the service type has a high requirement on transmission timeliness and a small transmission data volume, acquiring a network threshold value corresponding to the network quality required by the service type is as follows: the network delay is smaller than a preset delay threshold and/or the network jitter is smaller than a preset jitter threshold;
if the service type is as follows: if the service type has a high requirement on the reliability of the transmitted data packet, the network threshold value corresponding to the network quality required for acquiring the service type is: the network packet loss rate is smaller than a preset packet loss threshold;
if the service type is as follows: if the service type has a high requirement on transmission timeliness and a large transmission quantity, the network threshold value corresponding to the network quality required by the service type is acquired as follows: the network bandwidth is greater than a preset bandwidth threshold.
5. The data transmission method in the multiple concurrent systems according to claim 3, wherein the selecting, for the communication link, an application policy that matches the current network quality and the required network threshold according to the required network thresholds corresponding to the current network quality and the service type, respectively, includes:
according to the acquired network parameters of the network bandwidth, the network delay, the network jitter and the packet loss rate which can represent the current network quality, respectively corresponding required network thresholds according to the service types, and if the required network thresholds require that the network bandwidth is not lower than a preset bandwidth threshold, the application strategy of the network bandwidth is improved by adopting a particle swarm optimization algorithm according to the parameter of the network bandwidth corresponding to the current network quality;
if the required network threshold requires that the network packet loss rate is smaller than a preset packet loss threshold, an application strategy for reducing the data packet loss rate by adopting a link multiplexing algorithm is adopted by referring to the parameter of the packet loss rate corresponding to the current network quality;
and if the required network threshold value requires that the network delay is smaller than a preset delay threshold value and/or the network jitter is smaller than a preset jitter threshold value, referring to two parameters, namely the network delay and the network jitter, corresponding to the current network quality, and adopting a particle swarm optimization algorithm to improve the network bandwidth and the network transmission rate.
6. The data transmission method in the multiple concurrent systems according to claim 3, wherein the identifying the service type corresponding to the data transmitted on the communication link according to the current data transmitted on the communication link comprises:
integrating all conditions corresponding to data transmission on a communication link, and dividing service types corresponding to the data transmission into an alternating current class, an interactive class, a medium class and a composite class;
according to different requirements of different service types on four indexes of network bandwidth, network delay, network jitter and packet loss rate, a requirement matrix H is constructed, and the method comprises the following steps:
Figure FDA0002281824100000031
wherein h isijRepresenting the value of each index corresponding to the service, and s represents the classic-based dimension of the network characteristic index;
based on a classical hierarchical analysis algorithm, optimization is carried out on weight setting, and the degree of reflection rho is introducediThen, there are:
Figure FDA0002281824100000032
degree of reflection ρiHas the effect of eliminating redundancy in the information to obtain an average information quantity, a reflection piThe weight of (A) is:
Figure FDA0002281824100000033
and identifying the service type corresponding to the transmission data on the communication link according to the value obtained by linear addition of the weight and the characteristic factor and as the basis of the network for identifying different service input streams.
7. The data transmission method in the multiple concurrent systems according to claim 6, wherein the application strategy for improving the network bandwidth by using the particle swarm optimization algorithm comprises:
optimizing network distribution transmission according to service requirements;
because the data packet transmission process conforms to the poisson process, the weight calculation method is combined and modeling is carried out based on the theory of the application random process, and the following steps are carried out:
Figure FDA0002281824100000041
wherein, theta (tau) represents a benefit value, namely an objective function to be optimized, and represents the service quality of the system; tau isiTraffic arrival rate, μ, representing network iiRepresenting that the response speed of the network i obeys the Poisson distribution service rate; t isiIs the real-time system period of each network;
solving by adopting an improved particle swarm optimization algorithm, the method comprises the following steps:
Figure FDA0002281824100000043
Figure FDA0002281824100000044
Figure FDA0002281824100000045
where k is the number of iterations, ρkIs the inertial weight, dis, used by the particle at the kth iterationkRepresenting a delta from the optimal position occurring in the previous iteration,
Figure FDA0002281824100000046
is the fitness value of particle i after the kth iteration.
8. A transmission server, wherein the transmission server is applied to the multi-path concurrent system, and can execute the data transmission method in the multi-path concurrent system according to claim 1;
the transmission server comprises a memory and a processor, wherein the memory stores a data transmission program in a multi-path concurrent system which can run on the processor, and the data transmission program realizes the following steps when being run by the processor:
detecting the communication condition of each communication device in a multi-path concurrent system, and acquiring the current network quality corresponding to a communication link in the multi-path concurrent system;
according to the obtained current network quality, selecting a pre-configured application strategy matched with the current network quality for the communication link by referring to current transmission data on the communication link;
and transmitting data on the communication link according to the selected application strategy.
9. The transmission server of claim 8, wherein the data transmission program is further executable by the processor to select a preconfigured application policy for the communication link that matches the current network quality with reference to currently transmitted data on the communication link based on the obtained current network quality, comprising:
identifying a service type corresponding to the data transmitted on the communication link according to the current data transmitted on the communication link;
acquiring a network threshold value corresponding to the network quality required by the service type according to the identified service type;
and selecting an application strategy matched with the current network quality and the required network threshold value for the communication link according to the acquired required network threshold values respectively corresponding to the current network quality and the service type.
10. The transmission server of claim 9, wherein the data transmission program is further executable by the processor to identify a traffic type corresponding to the data transmitted over the communication link based on the data currently transmitted over the communication link, comprising:
integrating all conditions corresponding to data transmission on a communication link, and dividing service types corresponding to the data transmission into an alternating current class, an interactive class, a medium class and a composite class;
according to different requirements of different service types on four indexes of network bandwidth, network delay, network jitter and packet loss rate, a requirement matrix H is constructed, and the method comprises the following steps:
Figure FDA0002281824100000061
wherein h isijRepresenting the value of each index corresponding to the service, and s represents the classic-based dimension of the network characteristic index;
based on a classical hierarchical analysis algorithm, optimization is carried out on weight setting, and the degree of reflection rho is introducediThen, there are:
Figure FDA0002281824100000062
degree of reflection ρiHas the effect of eliminating redundancy in the information to obtain an average information quantity, a reflection piThe weight of (A) is:
according to the value obtained by linear addition of the weight and the characteristic factor, the value is used as the basis for identifying different service input streams by the network, and the service type corresponding to the transmission data on the communication link is identified;
wherein the data transmission program can be further run by the processor to adopt a particle swarm optimization algorithm to improve an application strategy of a network bandwidth, and the application strategy comprises the following steps:
optimizing network distribution transmission according to service requirements;
because the data packet transmission process conforms to the poisson process, the weight calculation method is combined and modeling is carried out based on the theory of the application random process, and the following steps are carried out:
Figure FDA0002281824100000064
wherein, theta (tau) represents a benefit value, namely an objective function to be optimized, and represents the service quality of the system; tau isiTraffic arrival rate, μ, representing network iiRepresenting that the response speed of the network i obeys the Poisson distribution service rate; t isiIs a real-time system of each networkA period;
solving by adopting an improved particle swarm optimization algorithm, the method comprises the following steps:
Figure FDA0002281824100000065
Figure FDA0002281824100000066
Figure FDA0002281824100000071
Figure FDA0002281824100000072
where k is the number of iterations, ρkIs the inertial weight, dis, used by the particle at the kth iterationkRepresenting a delta from the optimal position occurring in the previous iteration,
Figure FDA0002281824100000073
is the fitness value of particle i after the kth iteration.
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