CN102868741A - Method for improving peer-to-peer (P2P) data transmission efficiency - Google Patents
Method for improving peer-to-peer (P2P) data transmission efficiency Download PDFInfo
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Abstract
The invention relates to a network data transmission optimization technology, in particular to a method for improving peer-to-peer P2P data transmission efficiency. The method comprises the following steps of: firstly adding a factor which influences the P2P transmission speed into a P2P node chain table; then, endowing different weight coefficients on different factors; finally, sequencing a new P2P node chain table to obtain an optimal P2P node, and arranging the optimal P2P node at the head of a P2P node list, wherein data interaction starts from the P2P node at the head of the P2P node list when a client downloads data. The method has the beneficial effects that through optimization sequencing of the P2P nodes, the P2P data transmission efficiency is effectively improved and a network data downloading process is optimized. The method is suitable for P2P data transmission.
Description
Technical field
The present invention relates to a kind of network data transmission optimisation technique, relate to concretely a kind of method that improves the efficient that adopts the P2P data transfer mode.
Background technology
Fast development along with network application, large-scale transfer of data is more and more, especially the development of the transmission of digital video file and Online Video program request, server is easy to become system bottleneck under traditional C/S model, also face simultaneously the day by day not enough present situation of the network bandwidth, traditional stream service supplies a pattern and is faced with stern challenge.So the P2P data transmission technology is arisen at the historic moment, the core of P2P technology be the user in as the client downloads data also as the server uploading data, be a kind of brand-new stream service network contents distribution management system that combines P2P and these two kinds of technology of CDN.Be to allow client serve as simultaneously the role of server based on the P2P+CDN technology, for other client provides required file, so just can provide high-quality file distribution, search, download and video request program, the service such as live for the user.It takes full advantage of the bandwidth of each download terminal on the Internet, so that solved by the limited bottleneck problem of bringing of server uploading rate.
But the problem of P2P technology is at present, and the P2P technology is that a kind of preemptive type is used to the network bandwidth, and it has taken the most network bandwidth, thereby has had a strong impact on the normal operation of other Networks, so that the P2P technology is resisted by bandwidth operator.And the basic reason that this problem occurs is that P2P software is when the searching service node, think that each node is identical, therefore cause when file-sharing, a large amount of files transmits on network repeatedly, therefore increase to a certain extent the burden of backbone network, also affected the data transmission efficiency of P2P.
Summary of the invention
Problem solved by the invention is exactly for the problem of present P2P technology on transfer of data, proposes a kind of method that improves the P2P data transmission efficiency.
The present invention solves the problems of the technologies described above the technical scheme that adopts: improve the method for P2P data transmission efficiency, it is characterized in that, may further comprise the steps:
The factor that a. will affect the P2P transmission speed adds in the P2P node chained list;
B. give different weight coefficients to the different factors;
C. the new P2P node chained list that obtains among the step b is sorted, draw optimum P2P node, and it is come the head of P2P node listing;
D. during client's downloading data, begin to carry out data interaction from the P2P node of P2P node listing head.
Concrete, the factor described in the step a comprises node type, gateway amount and enlivens the factor.
Concrete, described node type, gateway amount and the weight coefficient that enlivens the factor are respectively 0.5,0.3 and 0.2.
Concrete, the concrete grammar that draws optimum P2P node through ordering described in the step c is for adopting the algorithm of averaging, and the concrete formula that obtains individual node mean value is:
Node mean value=node type * 50%+ gateway amount * 30%+ enlivens factor * 20%;
Through calculating posterior nodal point evaluation of estimate maximum is optimum P2P node.
Beneficial effect of the present invention is, by the P2P node is optimized ordering, thereby effectively raises the efficient of P2P transfer of data, optimized the downloading process of network data.
Embodiment
The below describes technical scheme of the present invention in detail:
The method of raising P2P data transmission efficiency of the present invention, mainly may further comprise the steps: the factor that at first will affect the P2P transmission speed adds in the P2P node chained list, here the factor that affects the P2P transmission speed refers to and can by quantizing its factor on the transmission speed impact of intuitive judgment, can obtain by experiment; Then give different weight coefficients to the different factors; At last new P2P node chained list is sorted, draw optimum P2P node, and it is come the head of P2P node listing, the closer to the node of P2P node listing head, optimize Quan Yuegao; During client's downloading data, begin to carry out data interaction from the P2P node of P2P node listing head.
The concrete factor that affects the P2P transmission speed comprises: node type, gateway amount and enliven the factor.Wherein gateway amount includes the gateway amount of client to P2P super node and client to ordinary node, and its numerical values recited has represented the number that gateway need to pass through in client and P2P super node and ordinary node realization signal post.Node type is that the expression present node is P2P super node or P2P ordinary node.Enliven the active degree that the factor is used for judging current P2P node.
A kind of concrete weight coefficient of giving the factor is: node type is 0.5, gateway amount is 0.3 and to enliven the factor be 0.2.The foundation of giving the different weight system of each factor here is, node type is mainly considered P2P super node performance bottleneck factor, because when just beginning to download, all clients in the network all do not have fragment, after having reached a period of time, newly the client of adding just need not at first be considered from the P2P super node again and download, but at first selects to have the P2P ordinary node of this file.And gateway amount has been because the size of its numerical value has represented the gateway amount of process, the number of the function Access Gateway that namely divides into groups, and number is less, and the time that consumes is just less, just should pay the utmost attention to.The remaining factor is to enliven the factor at last, and the active degree of single P2P node is larger, more can be paid the utmost attention to.
A kind ofly concrete pass through concrete grammar that ordering draws optimum P2P node for adopting the algorithm of averaging, the concrete formula that obtains individual node mean value is:
Node mean value=node type * 50%+ gateway amount * 30%+ enlivens factor * 20%;
Be optimum P2P node through what calculate posterior nodal point evaluation of estimate maximum, therefore more come the head of P2P node listing, also just more first and client carry out follow-up alternately, thereby finish the download of data.
Claims (4)
1. improve the method for P2P data transmission efficiency, it is characterized in that, may further comprise the steps:
The factor that a. will affect the P2P transmission speed adds in the P2P node chained list;
B. give different weight coefficients to the different factors;
C. the new P2P node chained list that obtains among the step b is sorted, draw optimum P2P node, and it is come the head of P2P node listing;
D. during client's downloading data, begin to carry out data interaction from the P2P node of P2P node listing head.
2. the method for raising P2P data transmission efficiency according to claim 1 is characterized in that the factor described in the step a comprises node type, gateway amount and enlivens the factor.
3. the method for raising according to claim 2 P2P data transmission efficiency is characterized in that, described node type, gateway amount and the weight coefficient that enlivens the factor are respectively 0.5,0.3 and 0.2.
4. the method for raising P2P data transmission efficiency according to claim 3 is characterized in that, the concrete grammar that draws optimum P2P node through ordering described in the step c is for adopting the algorithm of averaging, and the concrete formula that obtains individual node mean value is:
Node mean value=node type * 50%+ gateway amount * 30%+ enlivens factor * 20%;
Through calculating posterior nodal point evaluation of estimate maximum is optimum P2P node.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327121A (en) * | 2013-07-10 | 2013-09-25 | 亿览在线网络技术（北京）有限公司 | P2P (Peer-to-Peer Network) network resource transmission method and device for same |
| CN104333816A (en) * | 2014-11-26 | 2015-02-04 | 北京奇艺世纪科技有限公司 | Method and device for determining download mode in P2P network |
| CN104661108A (en) * | 2013-11-25 | 2015-05-27 | 乐视网信息技术（北京）股份有限公司 | Media stream downloading method for terminal, terminal and communication system |
| CN105681828A (en) * | 2016-03-24 | 2016-06-15 | 合一网络技术(北京)有限公司 | Node connection adjusting method and device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296152A (en) * | 2008-06-26 | 2008-10-29 | 腾讯科技（深圳）有限公司 | Data scheduling method and system of equity linked network |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296152A (en) * | 2008-06-26 | 2008-10-29 | 腾讯科技（深圳）有限公司 | Data scheduling method and system of equity linked network |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327121A (en) * | 2013-07-10 | 2013-09-25 | 亿览在线网络技术（北京）有限公司 | P2P (Peer-to-Peer Network) network resource transmission method and device for same |
| CN104661108A (en) * | 2013-11-25 | 2015-05-27 | 乐视网信息技术（北京）股份有限公司 | Media stream downloading method for terminal, terminal and communication system |
| CN104333816A (en) * | 2014-11-26 | 2015-02-04 | 北京奇艺世纪科技有限公司 | Method and device for determining download mode in P2P network |
| CN104333816B (en) * | 2014-11-26 | 2017-10-27 | 北京奇艺世纪科技有限公司 | The determination method and device of downloading mode in a kind of P2P networks |
| CN105681828A (en) * | 2016-03-24 | 2016-06-15 | 合一网络技术(北京)有限公司 | Node connection adjusting method and device |
| CN105681828B (en) * | 2016-03-24 | 2020-02-14 | 合一网络技术(北京)有限公司 | Node connection adjusting method and device |
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Application publication date: 20130109 |