CN110337116A - The judgment method of the QoS index of MAC layer converged communication - Google Patents
The judgment method of the QoS index of MAC layer converged communication Download PDFInfo
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- CN110337116A CN110337116A CN201910615079.1A CN201910615079A CN110337116A CN 110337116 A CN110337116 A CN 110337116A CN 201910615079 A CN201910615079 A CN 201910615079A CN 110337116 A CN110337116 A CN 110337116A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0847—Transmission error
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0852—Delays
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
- H04L43/0888—Throughput
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
- H04L43/55—Testing of service level quality, e.g. simulating service usage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
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- Quality & Reliability (AREA)
- Environmental & Geological Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of judgment methods of the QoS index of MAC layer converged communication, it include: to obtain power line carrier and wireless communication based on the fused physical channel characteristics parameter of MAC layer, the QoS index data of fused MAC layer are calculated according to physical channel characteristics parameter and preset model, wherein, QoS index data include the bit error rate, handling capacity and time delay, decay factor, noise power, modulation system is corresponding with the bit error rate, bandwidth, signal-to-noise ratio is corresponding with handling capacity, transmission range and transmission rate are corresponding with time delay, judge whether the QoS index data of the fused MAC layer calculated meet preset business demand.The judgment method of the QoS index of MAC layer converged communication provided by the invention can optimize physical channel characteristics parameter according to assessment result, to improve the communication quality of converged network service access control.
Description
Technical field
The present invention relates to converged communications, especially with regard to a kind of judgment method of the QoS index of MAC layer converged communication.
Background technique
Currently, the intelligent construction of adapted telecommunication is the important base for supporting smart grid and the development of ubiquitous electric power Internet of Things
Plinth.In order to meet the new business such as power distribution automation, distributed generation resource access control, electric car charge and discharge control, smart home
Communication requirement, higher want is proposed to the coverage area of communication access, bandwidth rates, communication delay, system stability etc.
It asks.Therefore, it is based on the electric power of media access control (full name in English: Media Access Control, english abbreviation: MAC) layer
Line carrier wave and the wireless fusion communication technology have become research hotspot in recent years.
The type of service of converged communication network is many kinds of, and the requirement to channel transfer characteristic is different, leads to needle
It is poor to the access control operability of business demand.
Based on this, the inventors of the present application found that existing converged communication system is difficult to meet business to network transmission spy
Property new demand, be mainly manifested in that the variation of converged communication link connection increases, rate-matched requires to improve, mixed networking mode increases
More, fusion channel quality assessment scarce capacity, existing emerging system framework, technical solution and method are difficult to meet high quality fusion
The communication quality of communication access control.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of judgment methods of the QoS index of MAC layer converged communication, can be improved and melt
The communication quality of the access control of hop communication.
To achieve the above object, the present invention provides a kind of judgment methods of the QoS index of MAC layer converged communication, comprising:
It obtains power line carrier and wireless communication is based on the fused physical channel characteristics parameter of MAC layer, wherein the physical channel is special
Property parameter includes: decay factor, noise power, modulation system, bandwidth, signal-to-noise ratio, transmission range and transmission rate；According to institute
It states physical channel characteristics parameter and preset model calculates the QoS index data of fused MAC layer, wherein the QoS index
Data include the bit error rate, handling capacity and time delay, the decay factor, the noise power, the modulation system and the error code
Rate is corresponding, and the bandwidth, the signal-to-noise ratio are corresponding with the handling capacity, the transmission range and the transmission rate with it is described
Time delay is corresponding；Judge whether the QoS index data of the fused MAC layer of the calculating meet preset business demand.
In a preferred embodiment, whether the QoS index data of the fused MAC layer for judging the calculating
After meeting preset business demand, further includes: if the QoS index data of the fused MAC layer of the calculating be unsatisfactory for it is pre-
If business demand, then fused physical channel characteristics parameter is optimized.
In a preferred embodiment, it is calculated according to the physical channel characteristics parameter and preset model fused
The QoS index data of MAC layer include: to calculate the bit error rate according to signal-to-noise ratio and the first formula；When using binary phase shift keying
When BPSK modulation system, first formula are as follows:
Wherein when there are multiple jump condition, PiIndicate i-th bit error rate jumped, γiIndicate the i-th instantaneous signal-to-noise ratio jumped；
PR,iIndicate the i-th reception power jumped, hiIndicate fading factor, NiIndicate average noise power.
In a preferred embodiment, it is calculated according to the physical channel characteristics parameter and preset model fused
The QoS index data of MAC layer include: to calculate handling capacity C, institute according to the bandwidth B of single-hop node, signal-to-noise ratio γ and the second formula
State the second formula are as follows:
C=Bln (1+ γ).
In a preferred embodiment, it is calculated according to the physical channel characteristics parameter and preset model fused
The QoS index data of MAC layer include:
According to the bandwidth B of single-hop node, signal-to-noise ratio γ, transmission range d, converged network rate of signal propagation vfAnd third
Formula calculates the overall delay T of data communication, the third formula are as follows:
Wherein, SpacketFor data packet length.
In a preferred embodiment, judge whether the QoS index data of the fused MAC layer of the calculating meet
Preset business demand includes: that the QoS index data of the fused MAC layer of the calculating are corresponding with business need index
Preset QoS index data compare；If the QoS index data of the fused MAC layer of the calculating are described preset
In QoS index data area, then determine that the QoS index data of the fused MAC layer of the calculating meet preset business need
It asks；If the QoS index data of the fused MAC layer of the calculating in the preset QoS index data area, are not sentenced
The QoS index data of the fused MAC layer of the fixed calculating are unsatisfactory for preset business demand.
Compared with prior art, the judgment method of the QoS index of MAC layer converged communication according to the present invention, passes through acquisition
Fused physical channel characteristics parameter establishes the data function model between QoS index and characteristic of channel parameter, calculates QoS
Index is simultaneously compared with business need index, and whether assessment converged network telecommunication service quality meets business need, Ke Yigen
Physical channel characteristics parameter is optimized according to assessment result, to improve the communication quality of converged network service access control.
Detailed description of the invention
Fig. 1 is the flow chart of the judgment method of the QoS index of MAC layer converged communication according to an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
The characteristics of converged communication network based on MAC layer is power line carrier and wireless mac layer using unified communication equipment
System, such as CSMA/CA.Carrier wave and wireless transmission signal access converged network, it is necessary first to carry out dynamic spectrum detection, error correction is compiled
Then the MAC layer of both of which is carried out collaboration fusion by code, realize double-channel compatible communication protocol, forms carrier wave and wireless system
One evaluation system realizes the fusion of unified MAC layer.The advantages of this amalgamation mode be can effectively avoid dual-mode network MAC layer it
Between protocol conversion, be advantageously implemented unified scheduling of resource, access control, the strategies such as network management, improving entire access is
The QoS of system is ensured.
The present embodiment establishes the service quality (English of reflection network communication services quality on the basis of MAC layer merges
Full name: Quality of Service, english abbreviation: QoS) index parameter closes with mapping between channel state parameter is merged
System.Converged network physical channel characteristics parameter is extracted, is vertically mapped, is established between QoS index and characteristic of channel parameter
Data function model calculates QoS index and compares with operational indicator, and whether assessment converged network telecommunication service quality meets
Business need optimizes management for the corresponding characteristic of channel of QoS mapping relations, improves converged network according to assessment result
The communication quality of service access control, meets the communication quality demand of converged network diversification business.
As shown in Figure 1, the judgment method of the QoS index of MAC layer converged communication according to the preferred embodiment of the present invention
Flow chart, the method in the present embodiment includes: step S1-S3.
Step S1, obtains power line carrier and wireless communication is based on the fused physical channel characteristics parameter of MAC layer,
In, the physical channel characteristics parameter include: decay factor, noise power, modulation system, bandwidth, signal-to-noise ratio, transmission range with
And transmission rate.
Step S2 calculates the QoS index of fused MAC layer according to the physical channel characteristics parameter and preset model
Data, wherein the QoS index data include the bit error rate, handling capacity and time delay, decay factor, noise power, modulation system with
The bit error rate is corresponding, and bandwidth, signal-to-noise ratio are corresponding with handling capacity, and transmission range and transmission rate are corresponding with time delay.
Specifically, step S2 may include calculating the bit error rate according to signal-to-noise ratio and the first formula；When using binary system phase
When moving keying BPSK modulation mode, the bit error rate can be indicated are as follows:
It, can be by the first formula of bit error rate approximate representation by the equivalent mode of data:
Wherein when there are multiple jump condition, PiIndicate i-th bit error rate jumped, γiIndicate the i-th instantaneous signal-to-noise ratio jumped；
PR,iIndicate the i-th reception power jumped, hiIndicate fading factor, NiIndicate average noise power.
When multiple jump condition is not present, Pi indicates the bit error rate of single-hop node, and γ i indicates the instantaneous noise of single-hop node
Than.
Step S2 can also include calculating handling capacity C according to the bandwidth B of single-hop node, signal-to-noise ratio γ and the second formula,
Second formula are as follows:
C=Bln (1+ γ) (3).
In one implementation, the time delay T of converged network data communication mainly includes propagation delay time TTAnd propagation delay
TP。
Wherein, T=TT+TP (4)
Propagation delay time is related with data packet length and transmission rate, propagation delay and transmission channel and distance dependent.Step
S2 can also include according to the bandwidth B of single-hop node, signal-to-noise ratio γ, transmission range d, converged network rate of signal propagation vfAnd
Third formula calculates the overall delay T of data communication, the third formula are as follows:
Wherein, SpacketFor data packet length.
Step S3, judges whether the QoS index data of the fused MAC layer of the calculating meet preset business need
It asks.It specifically includes: step S31- step S33.
Step S31, the QoS index data of the fused MAC layer of the calculating are corresponding with business need index default
QoS index data compare.
Step S32, if the QoS index data of the fused MAC layer of the calculating are in the preset QoS index data
In range, then determine that the QoS index data of the fused MAC layer of the calculating meet preset business demand.
Step S33, if the QoS index data of the fused MAC layer of the calculating are not in the preset QoS index number
Preset business demand is unsatisfactory for according to the QoS index data for the fused MAC layer in range, then determining the calculating.
It can also include step S4, if the QoS index data of the fused MAC layer of the calculating are not in the present embodiment
Meet preset business demand, then fused physical channel characteristics parameter is optimized, such as adjustment signal gain, is reduced
Bit error rate etc..
The present embodiment by obtaining converged network physical channel characteristics parameter, establish QoS index and characteristic of channel parameter it
Between data function model, calculate QoS index simultaneously with business transmission index compare, assess converged network communication service matter
Whether amount meets business need, according to assessment result, optimizes for the corresponding characteristic of channel of QoS mapping relations, raising is melted
Close the communication quality of network service access control.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (6)
1. a kind of judgment method of the QoS index of MAC layer converged communication characterized by comprising
It obtains power line carrier and wireless communication is based on the fused physical channel characteristics parameter of MAC layer, wherein the physics letter
Road characterisitic parameter includes: decay factor, noise power, modulation system, bandwidth, signal-to-noise ratio, transmission range and transmission rate；
The QoS index data of fused MAC layer are calculated according to the physical channel characteristics parameter and preset model, wherein
The QoS index data include the bit error rate, handling capacity and time delay, the decay factor, the noise power, the modulation system
Corresponding with the bit error rate, the bandwidth, the signal-to-noise ratio are corresponding with the handling capacity, the transmission range and the transmission
Rate is corresponding with the time delay；
Judge whether the QoS index data of the fused MAC layer of the calculating meet preset business demand.
2. judgment method as described in claim 1, which is characterized in that the fused MAC layer of the judgement calculating
Whether QoS index data meet after preset business demand, further includes:
If the QoS index data of the fused MAC layer of the calculating are unsatisfactory for preset business demand, to fused object
Reason characteristic of channel parameter optimizes.
3. judgment method as described in claim 1, which is characterized in that according to the physical channel characteristics parameter and default mould
The QoS index data that type calculates fused MAC layer include:
The bit error rate is calculated according to signal-to-noise ratio and the first formula；
When using binary phase shift keying BPSK modulation system, first formula are as follows:
Wherein when there are multiple jump condition, PiIndicate i-th bit error rate jumped, γiIndicate the i-th instantaneous signal-to-noise ratio jumped；
PR,iIndicate the i-th reception power jumped, hiIndicate fading factor, NiIndicate average noise power.
4. judgment method as described in claim 1, which is characterized in that according to the physical channel characteristics parameter and default mould
The QoS index data that type calculates fused MAC layer include:
Handling capacity C, second formula are calculated according to the bandwidth B of single-hop node, signal-to-noise ratio γ and the second formula are as follows:
C=Bln (1+ γ).
5. judgment method as described in claim 1, which is characterized in that according to the physical channel characteristics parameter and default mould
The QoS index data that type calculates fused MAC layer include:
According to the bandwidth B of single-hop node, signal-to-noise ratio γ, transmission range d, converged network rate of signal propagation vfAnd third formula
Calculate the overall delay T of data communication, the third formula are as follows:
Wherein, SpacketFor data packet length.
6. judgment method as described in claim 1, which is characterized in that judge that the QoS of the fused MAC layer of the calculating refers to
Whether mark data, which meet preset business demand, includes:
By the QoS index data of the fused MAC layer of the calculating preset QoS index number corresponding with business need index
According to comparing；
If the QoS index data of the fused MAC layer of the calculating are sentenced in the preset QoS index data area
The QoS index data of the fused MAC layer of the fixed calculating meet preset business demand；
If the QoS index data of the fused MAC layer of the calculating not in the preset QoS index data area,
Determine that the QoS index data of the fused MAC layer of the calculating are unsatisfactory for preset business demand.
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