CN110730388B - Node connection method in P2P video-on-demand system - Google Patents

Node connection method in P2P video-on-demand system Download PDF

Info

Publication number
CN110730388B
CN110730388B CN201911312355.3A CN201911312355A CN110730388B CN 110730388 B CN110730388 B CN 110730388B CN 201911312355 A CN201911312355 A CN 201911312355A CN 110730388 B CN110730388 B CN 110730388B
Authority
CN
China
Prior art keywords
node
connection
nodes
video
request
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201911312355.3A
Other languages
Chinese (zh)
Other versions
CN110730388A (en
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qianmai culture media (Shanghai) Co., Ltd
Original Assignee
Qianmai Culture Media Shanghai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qianmai Culture Media Shanghai Co Ltd filed Critical Qianmai Culture Media Shanghai Co Ltd
Priority to CN201911312355.3A priority Critical patent/CN110730388B/en
Publication of CN110730388A publication Critical patent/CN110730388A/en
Application granted granted Critical
Publication of CN110730388B publication Critical patent/CN110730388B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
    • H04N21/23106—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving caching operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/632—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing using a connection between clients on a wide area network, e.g. setting up a peer-to-peer communication via Internet for retrieving video segments from the hard-disk of other client devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64723—Monitoring of network processes or resources, e.g. monitoring of network load

Abstract

The invention provides a node connection method in a P2P VOD system, wherein each node in the P2P VOD system comprises an encryption buffer area, a sharing area and a sent area, the method comprises the following steps: node P0Initiating a resource request, forming a node set U to be connected with the node containing the resource in the shared area, and sending the node set U to the node P0(ii) a Node P0After receiving a node set U to be connected, selecting a node establishing connection with the node set U; the method improves the speed of resource positioning, improves the accuracy and stability of connection, reduces the problem of long cache waiting time when the user watches the video, and improves the experience of the user watching the video.

Description

Node connection method in P2P video-on-demand system
Technical Field
The invention belongs to the field of video on demand, and particularly relates to a node connection method in a P2P video on demand system.
Background
With the integration of the internet and traditional media, video on demand has become the mainstream way for people to watch videos. With the birth of the P2P network, the P2P vod system, which is generated by the fusion of the P2P technology and vod, overcomes the problem of large consumption of server bandwidth in the traditional client/server system, and is increasingly popular with the users.
The framework of the P2P VOD system mainly comprises a management layer, a service layer and a user layer, wherein the management layer mainly monitors the distribution, the use condition and the node operation condition of video resources in the whole system; the service layer is mainly provided with a node service center and a resource service center, wherein the node service center is mainly used for collecting and managing the conditions of nodes, including network addresses, software and hardware performances, uplink bandwidth and the like; the resource service center is mainly used for providing resource fragments for the nodes to ensure the video service quality, downloading resources from the content distribution system, slicing the resources to generate video blocks (each video block consists of a plurality of data packets), and enabling the videos to be transmitted and restored and played in the P2P system; and is also used for storing the node resource index information table; the user layer is composed of client terminals and is composed of nodes. However, the nodes establishing the connection share resources, so that the problem of leakage is easy to occur, and the network security is reduced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a node connection method in a P2P video-on-demand system.
One technical solution of the present invention provides a node connection method in a P2P vod system, where each node in the P2P vod system includes an encryption buffer, a sharing area, and a sent area, and the connection method includes:
node P0Initiating a resource request, forming a node set U to be connected with the node containing the resource in the shared area, and sending the node set U to the node P0(ii) a The resource request comprises a requested video m, the video m comprising n video blocks;
node P0And after receiving the node set U to be connected, selecting the node establishing connection with the node set U.
In a further improved scheme, the node P0After receiving the node set U to be connected, selecting a node to be connected with the node set U, which specifically includes: node P0After receiving a node set U to be connected, selecting a node with the connectivity degree larger than a connectivity degree threshold value, and establishing connection with the node, wherein the connectivity degree of the node is calculated according to a formula (I):
Li=
Figure DEST_PATH_IMAGE001
(A)
Wherein, LiRepresenting the connectivity of the ith node in the node set U to be connected; y isiRepresenting the number of data packets in an encryption buffer area in the ith node; x is the number ofiThe number of the shared area data packets in the ith node is represented; z is a radical ofiThe number of the sent data packets in the ith node is represented; siAnd the number of the nodes containing the video blocks which are the same as the ith node in the shared area is represented.
In a further refinement, the method further comprises:
when the request resource does not exist in the shared area, forming a node set U by the nodes containing the request resource in the encryption cache area2And sent to the node P0；
Node P0Receiving a node set U2Then, the nodes to be connected are selected according to the behavior of each node to formNode set U3；
Node P0To node set U3The nodes in the network send connection requests, when the nodes are assembled into a U3After a certain node in the shared area agrees to the request, the resource corresponding to the request is copied to the shared area and is connected with the P0A connection is established. In a further improved scheme, the selecting a node to be connected according to each node behavior specifically selects a node to be connected whose sharing degree is greater than a threshold of the sharing degree, where the sharing degree is calculated according to a formula (two):
Fj=
Figure 200083DEST_PATH_IMAGE002
(II)
Wherein, FjRepresents the sharing degree of the j node, yjRepresenting the number of data packets in the encryption buffer area in the jth node; x is the number ofjThe number of the shared area data packets in the jth node is represented;
Figure DEST_PATH_IMAGE003
indicating the number of nodes to which the jth node is connected.
In a further refinement, the method further comprises:
node P0Selecting nodes for reestablishing connection to form connection node set U4And counting the connection node set U4The number G of the internal nodes is greater than the number threshold value G1When the current is over;
for connecting node set U4Setting a connection time limit T for each node;
when connecting node set U4When the connection time of a certain node exceeds the connection time limit T, the node P0The connection to the node is automatically disconnected.
In a further refinement, the method further comprises:
from the set of established connection nodes U4Beginning, counting a connection node set U within a preset time delta T, wherein delta T is less than or equal to T4Each node in the system sends to the node P0Number z of data packetsfAnd node P0Sending to a connecting nodeSet U4Number z of data packets in each nodef1；zfRepresenting a set of connected nodes U4Sending the f-th node to the node P0F is not less than 1, zf1Representing a node P0Sent to a connection node set U4The number of the f-th node data packets;
calculating Δ zfAnd with a threshold value Δ z1By comparison, when Δ zf≥Δz1Node P0Nodes automatically disconnected therefrom, Δ zf= zf1-zf。
In a further refinement, the method further comprises:
at a preset time Δ t1Inner, Δ t1< Δ t, node P0Initiating a resource request again, wherein the resource request comprises a request video k, the video k comprises a video blocks, a = n-b, and b is a node P0A video block that has been viewed;
forming a node containing re-request resources in the shared area into a node set U to be connected5And sent to the node P0(ii) a Node P0Receiving a node set U to be connected5Thereafter, the node with which the connection is reestablished is selected.
In a further improved scheme, the method further comprises the step of judging the node P0When the degree of congestion Y is greater than the threshold value Y1When is disconnected from P0And (3) connecting the connected neighbor nodes, wherein the congestion degree Y is calculated according to a formula (three):
Y=
Figure 212033DEST_PATH_IMAGE004
(III)
Wherein x is0Representing a node P0Number of data packets in the encryption buffer, y0Representing a node P0C represents the node P0The number of packets copied from the sent sector per minute.
The invention provides a node connection method in a P2P VOD system, wherein each node is connected with a node in the methodThe node is separately provided with the encryption cache region, the sharing region and the sent region, the resource downloaded from the content distribution system is directly cached in the encryption cache region, other nodes cannot access the encryption cache region, the node copies the resource which can be shared into the sharing region for other nodes to perform downloading and other operations, so that the node is ensured to share the resource, the risk of disclosure is reduced, and the safety of the P2P video on demand system is improved. And the node P which initiates the resource request is determined according to the connectivity of each node0The method and the device establish connection with the nodes containing the request resources, improve the speed of resource positioning, improve the accuracy and stability of connection, reduce the problem of long cache waiting time when the user watches the video, and improve the experience of watching the video by the user.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flowchart of a node connection method in a P2P VOD system according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a node connection method in a P2P VOD system according to a second embodiment of the present invention;
FIG. 3 is a flowchart of a node connection method in a P2P VOD system according to a third embodiment of the present invention;
fig. 4 is a flowchart of a node connection method in a P2P vod system according to a fourth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
One embodiment of the present invention provides a node connection method in a P2P vod system, where each node in the P2P vod system includes an encryption buffer, a sharing area, and a sent area, where a video block downloaded by a node from a content distribution system is cached in the encryption buffer, and other nodes cannot access resources in the encryption buffer; the sharing area is used for copying the sharable content to the sharing area by the nodes for sharing with the nodes establishing connection with the sharing area; the sent area is used for copying the video blocks sent to other nodes, wherein the resources in the shared area and the sent area are periodically emptied, and the video resources in the encryption cache area are periodically updated; as shown in fig. 1, the connection method includes the steps of:
1) node P0Initiating a resource request, forming a node set U to be connected with the node containing the resource in the shared area, and sending the node set U to the node P0(ii) a The resource request comprises a requested video m, the video m comprising n video blocks; wherein n is more than or equal to 1;
2) node P0After receiving a node set U to be connected, selecting a node establishing connection with the node set U; in some preferred embodiments, a node with a connectivity degree greater than a connectivity degree threshold is selected and a connection is established with the node, and the connectivity degree of the node is calculated according to the formula (one):
Li=
Figure 943228DEST_PATH_IMAGE001
(A)
Wherein, LiRepresenting the connectivity of the ith node in the node set U to be connected; y isiRepresenting the number of data packets in an encryption buffer area in the ith node; x is the number ofiThe number of the shared area data packets in the ith node is represented; z is a radical ofiThe number of the sent data packets in the ith node is represented; siAnd the number of the nodes containing the video blocks which are the same as the ith node in the shared area is represented.
The node connection method in the P2P VOD system provided by the application firstly sets up each node separatelyThe encryption cache region, the sharing region and the sent region, resources downloaded from the content distribution system are directly cached to the encryption cache region, other nodes cannot access the encryption cache region, the nodes copy the resources which can be shared into the sharing region for other nodes to perform downloading and other operations, and therefore the risk of disclosure is reduced while the nodes share the resources, and the safety of the P2P video on demand system is improved. And the node P which initiates the resource request is determined according to the connectivity of each node0The method and the device establish connection with the nodes containing the request resources, improve the speed of resource positioning, improve the accuracy and stability of connection, reduce the problem of long cache waiting time when the user watches the video, and improve the experience of watching the video by the user.
As shown in fig. 2, a node connection method in a P2P vod system according to another embodiment of the present invention further includes the following steps:
3) when the request resource does not exist in the shared area, forming a node set U by the nodes containing the request resource in the encryption cache area2And sent to the node P0；
4) Node P0Receiving a node set U2Then, selecting nodes to be connected according to the behavior of each node to form a node set U3；
Specifically, the node to be connected is selected according to the behavior of each node, wherein the sharing degree is greater than the threshold value of the sharing degree, and the sharing degree is calculated according to a formula (two):
Fj=
Figure 749642DEST_PATH_IMAGE002
(II)
Wherein, FjRepresents the sharing degree of the j node, yjRepresenting the number of data packets in the encryption buffer area in the jth node; x is the number ofjThe number of the shared area data packets in the jth node is represented;
Figure 503971DEST_PATH_IMAGE003
representing the number of nodes connected with the jth node;
5) node P0To node set U3The nodes in the network send connection requests, when the nodes are assembled into a U3After a certain node in the shared area agrees to the request, the resource corresponding to the request is copied to the shared area and is connected with the P0A connection is established.
In the method provided by the application, when the request resource does not exist in the shared area, resource search is carried out in the encryption cache area, the searched nodes containing the request resource form a set and are sent to the node P0Node P0Sending a connection request according to the sharing degree, copying the resources to a sharing area by the node agreeing to the connection request, and then connecting with the P0A connection is established. In addition, the request sending node is selected according to the sharing degree, so that the query load among the network resources for establishing the connection is balanced, and the node P is enabled to0The selected nodes have more resources, and the problems of instability and the like in the process of watching the video are reduced.
As shown in fig. 3, a node connection method in a P2P vod system according to another embodiment of the present invention further includes the following steps:
5) node P0Selecting nodes for reestablishing connection to form connection node set U4And counting the connection node set U4The number G of the internal nodes is greater than the number threshold value G1When the current is over;
6) for connecting node set U4Setting a connection time limit T for each node;
7) when connecting node set U4When the connection time of a certain node exceeds the connection time limit T, the node P0Automatically disconnecting from the node; the network security between the sharing nodes can be improved by setting the connection time limit;
8) from the set of established connection nodes U4Beginning, counting a connection node set U within a preset time delta T, wherein delta T is less than or equal to T4Each node in the system sends to the node P0Number z of data packetsfAnd node P0Sent to a connection node set U4Number z of data packets in each nodef1；zfRepresenting a set of connected nodes U4Sending the f-th node to the node P0F is not less than 1, zf1Representing a node P0Sent to a connection node set U4The number of the f-th node data packets;
9) calculating Δ zfAnd with a threshold value Δ z1By comparison, when Δ zf≥Δz1Node P0Nodes automatically disconnected therefrom, Δ zf= zf1-zf;
10) At a preset time Δ t1Inner, Δ t1< Δ t, node P0Initiating a resource request again, wherein the resource request comprises a request video k, the video k comprises a video blocks, a = n-b, and b is a node P0A video block that has been viewed;
11) forming a node containing re-request resources in the shared area into a node set U to be connected5And sent to the node P0(ii) a Node P0Receiving a node set U to be connected5Thereafter, the node with which the connection is reestablished is selected.
The present application further relates to P0Monitoring the nodes which are reestablished to be connected, and when the connection time exceeds the connection time limit, the node P0Automatically disconnected, and a node P is sent when the connection is reestablished for a period of time0The number of the data packets is obviously less than that of the node P0The number of occurrences for this node, in which case node P exists0Also disconnect from the node and for a preset period of time, P0The resource request is continued, so that the continuity of subsequent resource watching is ensured, the watching stability is improved, and the watching experience is improved; this application sets up the sliding time window, and then realizes the disconnection and reconnection of dynamic node, avoids some nodes because the connection stability that long-time connection caused is poor, and breaks off suddenly and watches for the user and bring the problem that the cache latency is long or can't continue to watch, improves and watches experience.
As shown in fig. 4, a node connection method in a P2P vod system according to another embodiment of the present invention further includes the following steps:
12) judging node P0Degree of congestion Y, when congestionDegree Y is greater than threshold value Y1When is disconnected from P0And (3) connecting the connected neighbor nodes, wherein the congestion degree Y is calculated according to a formula (three):
Y=
Figure 303300DEST_PATH_IMAGE004
(III)
Wherein x is0Representing a node P0Number of data packets in the encryption buffer, y0Representing a node P0C represents the node P0The number of packets copied from the sent sector per minute.
According to node P0The congestion degree of the node P is broken, and the neighbor nodes connected with the node P are further improved0The degree of viewing stream of (2) avoids network congestion.
In some preferred embodiments, the node P is disconnected0Weak neighbor nodes are connected. The weak neighbor node is a node P0And the node with the sum of the number of data packet transmissions between the node and the neighbor node being less than the threshold value.
Another embodiment of the present invention provides another computer-readable storage medium, which may be the computer-readable storage medium contained in the memory in the above-described embodiment; or it may be a separate computer-readable storage medium not incorporated in the terminal. The computer readable storage medium stores one or more programs for use by one or more processors in performing the methods provided by the embodiments.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. A node connection method in a P2P vod system, wherein each node in the P2P vod system comprises an encryption buffer, a share area and a sent area, the connection method comprises: node P0Initiating a resource request, forming nodes containing request resources in a shared area into a node set U to be connected, and sending the node set U to a node P0(ii) a The resource request comprises a requested video m, wherein the video m comprises n video blocks, and n is more than or equal to 1;
node P0After receiving a node set U to be connected, selecting a node establishing connection with the node set U; the node P0After receiving the node set U to be connected, selecting a node to establish a connection with the node set U specifically includes: node P0After receiving a node set U to be connected, selecting a node with the connectivity degree larger than a connectivity degree threshold value, and establishing connection with the node, wherein the connectivity degree of the node is calculated according to a formula (I):
Figure FDA0002430396920000011
wherein, LiRepresenting the connectivity of the ith node in the node set U to be connected; y isiRepresenting the number of data packets in an encryption buffer area in the ith node; x is the number ofiThe number of the shared area data packets in the ith node is represented; z is a radical ofiIndicating the number of the sent data packets; siIndicating within a shared areaThe number of nodes containing the same video block as the ith node.
2. The method for node connection in a P2P vod system according to claim 1, wherein the method further comprises:
when the request resource does not exist in the shared area, forming a node set U by the nodes containing the request resource in the encryption cache area2And sent to the node P0；
Node P0Receiving a node set U2Then, selecting nodes to be connected according to the behavior of each node to form a node set U3；
Node P0To node set U3The nodes in the network send connection requests, when the nodes are assembled into a U3After a certain node in the shared area agrees to the request, the resource corresponding to the request is copied to the shared area and is connected with the P0A connection is established.
3. The method for connecting nodes in a P2P vod system as claimed in claim 2, wherein the selecting the nodes to be connected according to the behavior of each node is specifically selecting the nodes to be connected whose sharing degree is greater than the threshold of the sharing degree, and the sharing degree is calculated according to the formula (two):
Figure FDA0002430396920000021
wherein, FjRepresents the sharing degree of the j node, yjRepresenting the number of data packets in the encryption buffer area in the jth node; x is the number ofjThe number of the shared area data packets in the jth node is represented; spjIndicating the number of nodes to which the jth node is connected.
4. The method for node connection in a P2P vod system according to claim 1, wherein the method further comprises:
node P0Selecting the nodes for establishing connection to form a connection node set U4And counting the connection node set U4Inner nodeWhen the number is larger than the number threshold value G1When the current is over;
for connecting node set U4Setting a connection time limit T for each node;
when connecting node set U4When the connection time of a certain node exceeds the connection time limit T, the node P0The connection to the node is automatically disconnected.
5. The method for node connection in a P2P vod system according to claim 4, wherein the method further comprises:
from the set of established connection nodes U4Beginning, counting a connection node set U within a preset time delta T, wherein delta T is less than or equal to T4Each node in the system sends to the node P0Number z of data packetsfAnd node P0Sent to a connection node set U4Number z of data packets in each nodef1；zfRepresenting a set of connected nodes U4Sending the f-th node to the node P0F is not less than 1, zf1Representing a node P0Sent to a connection node set U4The number of the f-th node data packets;
calculating Δ zfAnd with a threshold value Δ z1By comparison, when Δ zf≥Δz1Node P0Nodes automatically disconnected therefrom, Δ zf＝zf1-zf。
6. The method for node connection in a P2P vod system according to claim 5, wherein said method further comprises:
at a preset time Δ t1Inner, Δ t1< Δ t, node P0Initiating a resource request again, wherein the resource request comprises a request video k, the video k comprises a video blocks, a is n-b, and b is a node P0The number of video blocks that have been viewed;
forming a node containing re-request resources in the shared area into a node set U to be connected5And sent to the node P0(ii) a Node P0Receiving a node to be connectedSet U5Thereafter, a node with which a connection is established is selected.
7. The method of claim 1, wherein the method further comprises determining a node P in the P2P VOD system0When the degree of congestion Y is greater than the threshold value Y1When is disconnected from P0The congestion degree Y of the connected neighbor nodes is calculated according to a formula (three):
Figure FDA0002430396920000031
wherein x is0Representing a node P0Number of data packets in the encryption buffer, y0Representing a node P0C represents the node P0The number of packets copied in the sent sector per minute.
CN201911312355.3A 2019-12-19 2019-12-19 Node connection method in P2P video-on-demand system Active CN110730388B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911312355.3A CN110730388B (en) 2019-12-19 2019-12-19 Node connection method in P2P video-on-demand system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911312355.3A CN110730388B (en) 2019-12-19 2019-12-19 Node connection method in P2P video-on-demand system

Publications (2)

Publication Number Publication Date
CN110730388A CN110730388A (en) 2020-01-24
CN110730388B true CN110730388B (en) 2020-08-04

Family

ID=69226016

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911312355.3A Active CN110730388B (en) 2019-12-19 2019-12-19 Node connection method in P2P video-on-demand system

Country Status (1)

Country Link
CN (1) CN110730388B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111405000B (en) * 2020-03-01 2020-11-10 上海子午线新荣科技有限公司 P2P network resource sharing method and system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101710901A (en) * 2009-10-22 2010-05-19 乐视网信息技术（北京）股份有限公司 Distributed type storage system having p2p function and method thereof
CN104618506A (en) * 2015-02-24 2015-05-13 庄奇东 Crowd-sourced content delivery network system, method and device
CN107396204A (en) * 2017-06-12 2017-11-24 江苏大学 A kind of P2P video request program node selecting methods based on linear programming and intensified learning
CN109756422A (en) * 2019-03-27 2019-05-14 山东浪潮云信息技术有限公司 A kind of forwarding routing node choosing method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190342626A1 (en) * 2018-05-02 2019-11-07 Andres Hernandez Method of Implementing A Peer-To-Peer On-Demand Live Video Streaming Service

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101710901A (en) * 2009-10-22 2010-05-19 乐视网信息技术（北京）股份有限公司 Distributed type storage system having p2p function and method thereof
CN104618506A (en) * 2015-02-24 2015-05-13 庄奇东 Crowd-sourced content delivery network system, method and device
CN107396204A (en) * 2017-06-12 2017-11-24 江苏大学 A kind of P2P video request program node selecting methods based on linear programming and intensified learning
CN109756422A (en) * 2019-03-27 2019-05-14 山东浪潮云信息技术有限公司 A kind of forwarding routing node choosing method

Also Published As

Publication number Publication date
CN110730388A (en) 2020-01-24

Similar Documents

Publication Publication Date Title
US10033548B2 (en) Method, system, service selection entity, and service management entity for selecting service provision entity
US20180205976A1 (en) Method and apparatus of obtaining video fragment
WO2019084972A1 (en) Streaming media live broadcast method and system
US20140297869A1 (en) Adaptive streaming cost management
WO2020140729A1 (en) Data transmission method and apparatus, computer readable medium, and electronic device
US20100174806A1 (en) Data Processing Method, Apparatus And System
US10104407B2 (en) Method and device for network-assisted client-centric QoE optimization
JP4588768B2 (en) Determining the highest workload for nodes in the overlay network
WO2023005701A1 (en) Data communication method and apparatus, electronic device, and storage medium
US8719552B2 (en) Cache collaboration method, apparatus, and system
US20160112483A1 (en) Adaptive bit rates during broadcast transmission in distributed content delivery networks
TW201448545A (en) Apparatus and method for level-based self-adjusting peer-to-peer media streaming
CN110730388B (en) Node connection method in P2P video-on-demand system
EP3902279A1 (en) Audio and video stream distribution method in audio and video stream distribution system, and dynamic parent node
KR20160102683A (en) Proxy server for cloud streaming service, cloud streaming system and method using the same
Wei et al. QoE oriented chunk scheduling in P2P-VoD streaming system
TWI489889B (en) Method and system for controlling flow of content delivery network and peer to peer network
US20140161125A1 (en) Method, duplication point device, and system for data flow reuse transmission
CN113810461B (en) Bandwidth control method, device and equipment and readable storage medium
CN111556324B (en) Video live broadcast method, device, equipment and system
KR101867319B1 (en) Method for providing streaming service
EP3190559A2 (en) Push-pull based content delivery system
US10497070B2 (en) Optimizing social information signaling
US11706469B2 (en) Systems and methods for streaming media content during unavailability of content server
KR102656804B1 (en) Edge caching system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20200709

Address after: Room 108, block C, building 12, No. 128, Xiangyin Road, Yangpu District, Shanghai, 200433

Applicant after: Qianmai culture media (Shanghai) Co., Ltd

Address before: 101104 two village, Zhang Jia Wan Town, Tongzhou District, Beijing

Applicant before: BEIJING TIANYIBAIKANG SCIENCE AND TRADE Co.,Ltd.

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant