CN103117905B - Network QoS and QoE measure and mapping relations analysis platform - Google Patents
Network QoS and QoE measure and mapping relations analysis platform Download PDFInfo
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- CN103117905B CN103117905B CN201310057840.7A CN201310057840A CN103117905B CN 103117905 B CN103117905 B CN 103117905B CN 201310057840 A CN201310057840 A CN 201310057840A CN 103117905 B CN103117905 B CN 103117905B
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Abstract
The invention discloses a kind of network QoS and QoE to measure and mapping relations analysis platform, it comprises QoS measurement module, QoE measurement module, network simulation module and network time synchronization module.Network QoS of the present invention and QoE measure and mapping relations analysis platform makes Virtual network operator can measure the qos value of network and QoE value and their mapping relations simultaneously, by these mapping relations, Virtual network operator can for the QoE demand of different user, appropriate QoS is provided to ensure, both user is remained like this, simultaneously also be unlikely to the high cost making Virtual network operator, and then the differential service realizing network quality for Virtual network operator provides the foundation and foundation.
Description
Technical field
The present invention relates to a kind of network analysis platform, particularly relate to a kind of network QoS and QoE and measure and mapping relations analysis platform.
Background technology
Along with the high speed development of Internet, the bandwidth sum speed of network becomes as geometric progression to increase.The theory of past centered by Internet Service Provider (InternetServiceProvider, ISP) slowly loses commercial value.Among the binary crelation of Internet Service Provider and user, user has the initiative status now.In order under the prerequisite retaining more old users, attract more new client, Internet Service Provider is except needing the QoS(QualityofService improving network) except, also need the Quality of experience improving network, i.e. QoE(QualityofExperience), because in the face of numerous Internet Service Providers, the choice criteria of user is the QoE value of network service---the QoE value of the network service who provides is high, just whom selects.
QoE is the total quality going sensing network to serve from user perspective, and QoS is actually the technical indicator be applied on network to ensure or strengthen network QoE quality.QoE is associated with concrete business, and for different business, identical QoS differs and obtains identical QoE surely, and meanwhile, the limited resource of operator can not guarantee there is identical QoS to each user and each business.The QoE of different business is different to the demand of QoS, and such as some business is responsive to the time delay Indexes Comparison in QoS, and as VoIP business, some business is responsive to the packet loss Indexes Comparison in QoS, such as Record Carrier.If Internet Service Provider is not by allocate resource, ensures the QoS demand of different business, that is can not ensure so will lose the QoE demand that different task is stable user, directly affect the interests of operator.
From paper and the technical report of numerous research QoE, QoE is by the impact of factors, have the subjective perception of the parameter such as user of non-technical, user experience, user expect, user preference and privacy, expense that user pays and application COS etc., there is the QoS of technical parameter such as application layer and network layer, comprise packet loss, time delay and delay variation etc.In the middle of these factors, the impact of QoS on QoE plays a part very important, and this mapping relations contain very high commercial value.
In existing technology and theory, other is divided to measure the solution and the theory that there has been comparative maturity to QoS and QoE numerical value, but for mapping relations between the two, be still in the conceptual phase of theoretical model, and less than the Software tool carrying out measuring for mapping relations.There is no corresponding mapping relations, realize in the process of QoE guarantee at Virtual network operator by QoS safeguards technique, just effective guidance and foundation.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of network QoS and QoE measures and mapping relations analysis platform, and it can be the differential service that operator realizes network quality and provides basis and foundation.
For achieving the above object, the invention provides a kind of network QoS and QoE and measure and mapping relations analysis platform, it comprises QoS measurement module, QoE measurement module, network simulation module and network time synchronization module,
Wherein, described QoS measurement module for measuring the QoS numerical value in network, and gathers QoS data every regular time, while recording described QoS data, records the moment producing described QoS data simultaneously;
Described QoE measurement module is for measuring the QoE numerical value in network, and timing sampling QoE data, while recording described QoE data, record produces the moment of described QoE data;
Described network simulation module for simulating different network condition, according to instruction, the performance of changed network, thus qos value in different QoS situation and corresponding QoE value can be measured;
Described network time synchronization module be used for data that guaranteed qos and QoE measurement module measure time the corresponding relation that engraves, the client and server end of network service to be carried out synchronously, thus QoS and the QoE numerical value that guarantee measures in the same time.
Network QoS described above and QoE measure and mapping relations analysis platform, and wherein, described QoS data comprises bandwidth, time delay and packet loss.
Network QoS described above and QoE measure and mapping relations analysis platform, wherein, at the described platform of operation are, first necessary operational network time synchronized module, completes synchronous.
Further, network QoS described above and QoE measure and mapping relations analysis platform, wherein, after synchronously completing, run described network simulation module, to arrange network state.
Closer, network QoS described above and QoE measure and mapping relations analysis platform, wherein, finally run described QoS measurement module and described QoE measurement module to measure the quality of network simultaneously.
Therefore, network QoS of the present invention and QoE measure and mapping relations analysis platform makes Virtual network operator can measure the qos value of network and QoE value and their mapping relations simultaneously, by these mapping relations, Virtual network operator can for the QoE demand of different user, appropriate QoS is provided to ensure, both remain user like this, be simultaneously also unlikely to the high cost making Virtual network operator, and then the differential service realizing network quality for Virtual network operator provides the foundation and foundation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that in the present invention, between four modules, logic connects.
Fig. 2 is the structural representation of the measuring table of the mapping relations of QoS to the QoE that network VoIP of the present invention serves.
Embodiment
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
The invention provides a kind of network QoS and QoE to measure and mapping relations analysis platform.Wherein, QoS is service quality, is controlled and ensure by Virtual network operator, and for ensureing different QoS, technology and the cost of needs are very different.QoE is Quality of experience, is the embodiment of the perception of the network user, determines, be also subject to the impact of other factors simultaneously primarily of QoS.Thus there are the mapping relations of QoS to the QoE that available Mathematical Modeling describes.
In the present invention, on the basis of existing QoS and QoE measuring technique and instrument, by synchronous Survey control, the data that QoS and QoE measurement module is surveyed have temporal correspondence, the solution of application of pure software, makes platform of the present invention can be adapted to multiple different measurement environment simultaneously.
Key point of the present invention is that applying QoS and the QoE value measured goes to calculate mapping relations.In order to reach this purpose, need an experiment porch simultaneously can measuring QoS and QoE numerical value, also must ensure can measure corresponding QoS and QoE numerical value, just such mapping relations measuring QoS to QoE in network simultaneously.Therefore, measuring table of the present invention is made up of four parts, QoS measurement module, QoE measurement module, network simulation module and network time synchronization module, and this logic connection of four as shown in Figure 1.
Briefly introduce the function of four modules and their interactivelies each other below.
QoS measurement module is for measuring the QoS numerical value in network, comprise bandwidth, time delay and packet loss etc., compared with traditional QoS Survey Software, QoS measurement module needs to gather QoS data every regular time, while record QoS data, need to record the moment producing this QoS data simultaneously.
QoE measurement module is for measuring the QoE numerical value in network.Different according to the application of reality, use different QoE computation models, process network reception data, calculate QoE numerical value.Equally, QoE needs can timing sampling, while record QoE data, can record the moment producing these data.
Network simulation module is for simulating different network condition.Owing to needing the mapping relations measuring QoS to QoE, need multiple repairing weld in the codomain (QoE) of mapping relations, find the rule that QoE changes along with QoS, therefore need the network of different QoS situations, network simulation module completes this work.Network simulation module can according to different configurations, the performance of changed network, i.e. QoS situation, thus the qos value can measured in different QoS situation and corresponding QoE value.
Network time synchronization module: the data measured in order to guaranteed qos and QoE measurement module time the corresponding relation that engraves, need to carry out synchronously to the client and server end of network service, thus QoS and the QoE numerical value that guarantee measures in the same time, be corresponding QoS and QoE numerical value.
Wherein, QoE measurement module is connected with network time synchronization module respectively with network QoE, and QoS measurement module is connected with network time module respectively with network QoS, and QoE measurement module is connected with QoS measurement module, and network simulation module is connected with network QoS.There is certain dependence and precedence in above-mentioned four modules, first necessary operational network time synchronized module, complete synchronous, secondly operational network analog module is to arrange network state, finally needs to run QoS measurement module and QoE measurement module to measure the quality of network simultaneously.
According to guiding theory of the present invention, design and Implement an embodiment below, intactly can show practical function process and the innovation of invention.
First the software and technology that relate in embodiment is introduced:
PTP: i.e. PrecisionTimeProtocol, Precision Time Protocol, it is a kind of time synchronization protocol, its principle is: main, from synchronisation message between clock and the transmitting-receiving time of recorded message, the time difference come and gone by calculating message calculates master, from the round total time delay between clock, if network is symmetrical (namely the transmission delay of both direction is identical), be exactly total then come and go the half one-way delay of time delay, this one-way delay is main, from the clock jitter between clock, local zone time is adjusted according to this deviation from clock, just can realize its synchronous with master clock.
PTPd: i.e. PrecisionTimeProtocolDaemon, it is the software simulating of PTP protocol, and be the open source software that may operate under several operation systems platform, its synchronous precision can reach the requirement of PTP protocol, in this enforcement, use this software as time synchronized module
Nistnet:Nistnet is the network media management of increasing income, can limiting network packet loss, bandwidth, time delay, shake, repeating frame.Can with the multiple condition of limit, such as with time limit bandwidth sum packet loss.Need utility command row to limit, or limit on Nistnet software interface, in this enforcement, use this software as network simulation module.
Tcpdump:Tcpdump is the packet catcher operated under order line.It allows user's interception and display to send or received network and is connected to the TCP/IP of this computer and other packets, and Tcpdump can analyze network behavior, and performance and application produces or receives network traffics.It supports the filtration for network layer, agreement, main frame, network or port, in this enforcement, employs the QoS measurement module developed on Tcpdump basis.
SJPhone:SJPhone is a VoIP(VoiceoverInternetProtocol developed by SJLab) software, it can to set up on network voice communications services end to end, in this enforcement, set up communication port end to end with SJPhone, carry out analog voice communication process by the mode of audio plays.
PESQ algorithm: PESQ and PerceptualEvaluationofSpeechQuality, subjective speech quality assessment, it is by the Standardization Sector of ITU-T(international telecommunication union telecommunication) propose, the standard calculation evaluating voice quality is sent out, it can be widely used in the measurement of end-to-end QoE numerical value in network, in this example, the basis of PESQ algorithm develops QoE measurement module.
What lower mask body introduction was implemented builds and running.
As shown in Figure 2, it is the measuring table of the mapping relations of QoS to the QoE that network VoIP serves.This enforcement relates to three computers, is respectively A, B, C, and their annexation as shown in Figure 2, is connected by A between B and C.Wherein B, C two machines are clients of VoIP service, and A operation is network environment emulating server, can pass through the parameter in control A, for providing different network environments between BC.
The flow process of the measurement of the mapping relations of QoS to the QoE that concrete network VoIP serves is as follows:
1. operational network time synchronized module is PTPd in the present embodiment, makes time error between B and C in microsecond rank;
2. run the network simulation module on A, being Nistnet in the present embodiment, by arranging suitable parameter, providing the reference value of a qos value;
3. start the VoIP software on B, C, be SJPhone in the present embodiment, be both broadcasting testing audio;
4. running the QoS measurement module on B, C, is the QoS Survey Software utilizing tcpdump to develop in the present embodiment;
5., with 4 simultaneously, run the QoE measurement module on B and C, in the present embodiment, use the QoE Survey Software utilizing PESQ algorithm realization;
6. the data value measured in applying step 3 and 5, obtains the mapping relations of network QoS to QoE.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that the ordinary skill of this area just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technical staff in the art, all should by the determined protection range of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (1)
1. network QoS and QoE measure and a mapping relations analysis platform, it is characterized in that, comprise QoS measurement module, QoE measurement module, network simulation module and network time synchronization module,
Wherein, described QoS measurement module for measuring the QoS numerical value in network, and gathers QoS data every regular time, while recording described QoS data, records the moment producing described QoS data simultaneously;
Described QoE measurement module is for measuring the QoE numerical value in network, and timing sampling QoE data, while recording described QoE data, record produces the moment of described QoE data;
Described network simulation module for simulating different network condition, according to instruction, the performance of changed network, thus qos value in different QoS situation and corresponding QoE value can be measured;
Described network time synchronization module be used for data that guaranteed qos and QoE measurement module measure time the corresponding relation that engraves, the client and server end of network service to be carried out synchronously, thus QoS and the QoE numerical value that guarantee measures in the same time;
Described QoS data comprises bandwidth, time delay and packet loss;
When running described platform, first necessary operational network time synchronized module, completes synchronous;
After synchronously completing, run described network simulation module, to arrange network state;
Last described QoS measurement module and the described QoE measurement module of simultaneously running is to measure the quality of network.
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| EP3261292A1 (en) * | 2016-06-21 | 2017-12-27 | Alcatel Lucent | Method and system for automating assessment of network quality of experience |
| CN107979496B (en) * | 2017-12-07 | 2021-01-05 | 锐捷网络股份有限公司 | Method and server for acquiring user experience quality |
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