CN108173851A - A kind of efficient multimedia transmission method for Information Network - Google Patents
A kind of efficient multimedia transmission method for Information Network Download PDFInfo
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- CN108173851A CN108173851A CN201711454484.7A CN201711454484A CN108173851A CN 108173851 A CN108173851 A CN 108173851A CN 201711454484 A CN201711454484 A CN 201711454484A CN 108173851 A CN108173851 A CN 108173851A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/24—Negotiation of communication capabilities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1621—Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
Abstract
A kind of efficient multimedia transmission method for Information Network, client node access the multimedia resources such as server node, the html file of transmission server node, word, image by Information Network；The transmission start stage；Carry out multimedia transmission, it is necessary first to establish connection；Multipath concurrence transmits data, when initiating new multimedia content request included in upper layer application, it is only necessary to which the STREAM frames for sending unlatching stream notice new stream number, and the frame comprising application data can be encapsulated into data packet after being successfully established and sent by stream；In the transmission stage of multimedia service, the reliability of transmission is ensured using the method for serializing transmission and packet loss retransmission mechanism；In order to reduce the range that response is needed to confirm, the both sides of transmission need timing to send STOP_WAITING frames；Server by the FIN flag position 1 of the last one frame of transmission, can represent the end of a stream after the transmission for completing a multimedia content；The end of transmission stage.After all streams are all closed, the connection closed of both-end.
Description
Technical field
It is one the present invention relates to for carrying out remote access and the method for transmitting multimedia resource by Information Network
Kind is used for the efficient multimedia transmission method of Information Network.
Background technology
The particularity of space propagation condition enables the characteristics of satellite communication is big there is chain-circuit time delay in the process, and packet loss is high.
Traditional http protocol is the agreement based on TCP, establish connection when need three-way handshake, establish cost height, processing packet loss and
Method not enough optimizes in terms of congestion, causes transmission time long, efficiency is low.Therefore it is developed for Information Network a kind of novel
Multimedia transmission method is realized and efficiently, is reliably transmitted in satellite link, is to build space information system needed to be considered one
Item important content.
In order to enable the multimedia transmission of high efficient and reliable is realized in future space information network,
Invention content
Technical problem：The purpose of the present invention is providing a kind of efficient multimedia transmission method for Information Network,
This method wants to solve the problems, such as to be, compares http protocol and shortens the multimedia file delivery time, reduces page load time,
Promote user experience.The main method for using multipath concurrence reduces the redundancy link number in transmission process, and the company of advanced optimizing
The process of foundation is connect, reduces used in connected round-trip delay, so as to improve the performance under Information Network, and passes through number
The reliability of transmission is ensured according to packet sequenceization and the negative retransmission mechanism optimized.Due to Information Network, there is height to lose
The particularity of packet, long time delay, the present invention mitigate space propagation for efficiently transmitting multimedia resource under Information Network
The negative effects such as delivery time that condition particularity is brought is long, easily interrupts.
Technical solution：A kind of efficient multimedia transmission method for Information Network of the present invention；Client node
The multimedias such as server node, the html file of transmission server node, word, image are accessed by Information Network to provide
Source.Characterized by the following steps：
1)：The transmission start stage；Carry out multimedia transmission, it is necessary first to connection is established, when client and server connect
It is general only to need once to be shaken hands when connecing；If both ends are First Contact Connections, client can generate one 64 at random
Connection ID just include connection negotiation information, including invention version in first request data package of client transmission
This number and connection ID；If opposite end detects that the version number in negotiated packet meets the requirements, a company is established in agreement
It connects, both sides record this connection ID, the two next ports are in need when establishing connection again, since there are this
The record of connection ID can not then be negotiated to be directly entered data transfer phase；Compare the three-way handshake of Transmission Control Protocol, the company of reducing
Connect the time of foundation；
The 2) multipath concurrence transmission data.It comprises the steps of：
Step 1：When upper layer application initiates new multimedia content request, it is only necessary to send the STREAM frames opened and flowed and lead to
New stream number is accused, the frame comprising application data can be encapsulated into data packet after being successfully established and sent by stream；
Step 2：In the transmission stage of multimedia service, the reliability of transmission is mainly retransmitted using serializing transmission and packet loss
The method of mechanism is ensured；By a counter, serializing number is carried out to each data packet；
Step 3：To the packet of loss, can be identified in acknowledgement frame (ACK frames) inner negative confirmation area of return, compared to
The selection of TCP retransmits (SACK), and the number that identifies of negative confirmation is expanded to 256；Sender can feed back according to acknowledgement frame
Information, Fast retransmission is explicitly marked the data packet for being, and distributes completely new sequence number to the packet retransmitted, reduces hair weight
The ambiguity answered serial number packet and caused；
Step 4：In order to reduce the range that response is needed to confirm, the both sides of transmission need timing to send STOP_WAITING frames
(stopping waiting for frame), informs that other side carries out the packet serial number lower limit of response confirmation, reduces the computer capacity of confirmation；An if data packet
Both without negative tag or not within positive acknowledgment serial number, and the serial number of the packet provides down less than STOP_WAITING frames
Limit, then it is irrecoverable；
Step 5：Server can mark the FIN of the last one frame of transmission after the transmission for completing a multimedia content
Will position 1 represents the end of a stream；FIN flag expression informs that this transmission of receiving terminal terminates；
3)：The end of transmission stage.After all streams are all closed, the connection closed of both-end.
By adding in the data structure of frame, the transferring content of multimedia service is encapsulated as the frame with not cocurrent flow number,
Frame is encapsulated into the unified transmission of data packet again；By the multidiameter delay of stream, improve using the interaction with transmission, reduce redundancy
Establishment of connection, especially in Information Network, the round-trip delay of link is very big, by reducing redundancy link, can effectively carry
High-transmission efficiency.
The optimization establishment of connection process, one end are initiating the connection previous existence into connection ID, this
The both sides that connection ID can be connected with unique mark.First packet carries negotiation information (connection ID and method version
This), if method version is supported in opposite end, once shakes hands and establish connection；And pass through the side for recording connection ID
Formula, follow-up both-end can establish connection without negotiating again.
Advantageous effect：The present invention proposes a kind of efficient multimedia transmission method for Information Network.By multichannel
Concurrent method is applied to the multimedia transmission of Information Network so that an end node accesses distal end via Information Network
Node-node transmission html file, word, image reduce redundancy link, are lifted under Information Network when multimedia resources
Efficiency of transmission；The process that connection is established also is optimized simultaneously, improves establishment of connection efficiency during spatial data transmission.
In entire Information Network, when ground, ocean, aerial, in satellite link a node carry out multimedia to another node
During the access of business, need to complete the transmission of data by satellite link.
A kind of efficient multimedia transmission method suitable for Information Network of the invention, by the method application of multipath concurrence
In the multimedia transmission of Information Network, it is to carry out multiple logic flows concurrently, new request is only needed to open newly
Then logic flow will be sent on the tidal data recovering of each logic flow to this connection, without as http protocol
New connection is initiated, reduces the consumption of redundancy link foundation, the transmission time in Information Network can be efficiently reduced；It is excellent
The process that connection is established is changed, has simplified negotiation of connection when establishing and shake hands number, established every time based on Transmission Control Protocol compared to HTTP
Connection transmitting-receiving two-end generally require 3 times and shake hands, take the round-trip delay of 2 or so；And the present invention is carried using first packet and negotiated
The method of information, normal condition only needs transmitting-receiving two-end once to shake hands with regard to that can complete establishment of connection, and if both sides have deposited
In linkage record, data can be directly transmitted without hand shaking later.
The method of multipath concurrence is applied to the multimedia transmission of Information Network, relative to http protocol, is reduced
The foundation of redundancy link；The process that connection is established is optimized simultaneously, be further reduced the consumption that connection is established, is realized efficiently
Transmission.
The method that multidiameter delay is used in satellite link, effectively reduces the foundation of redundancy link；And it reduces connection and establishes
Expense, to improve the efficiency of transmission under space environment；Pass through sequence of data packetization and the negative retransmission mechanism guarantee optimized
The reliability of transmission；More traditional HTTP multimedia transmission methods have preferable performance boost, reduce multimedia messages and add
Carry the time.
Description of the drawings
Fig. 1 is typical application scenarios；
Fig. 2A is the structure chart of protocol data packet, 2B data packets public identifier and meaning figure, 2C frame identifications area's meaning and generation
The different frames of table.
Fig. 3 is transmission process flow chart.
Specific embodiment
The present invention is further described for explanation and specific embodiment below in conjunction with the accompanying drawings.
It please refers to Fig.1 to Fig.3, the present invention provides a kind of efficient multimedia transmission method of Information Network, below
Its principle and embodiment is described in detail.
The purpose of the invention is to when carrying out remote access, transmission multimedia resource by Information Network, carry
The efficiency and reliability of high-transmission.Below with the space-based platform client node A in scene shown in Fig. 1 and distal end ground-based server
Node B illustrates the embodiment of transmission method by satellite link since connection to disconnection.
As shown in Figure 1, a mobile client A needs to complete to distal void space-based platform by Information Network
The access of node B.Mobile client A is linked into Information Network, after by space link, accesses in space-based space station
Server B.
As shown in Fig. 2, in the present invention, the data packet of transmission is divided into two big parts of packet header and data payload, wherein：
Data packet header includes public identifier (8 binary digits)；Global identifier (i.e. connection ID) (64
Binary digit)；Version number's (32 binary digits)；The sequence number (48 binary digits) of data packet.
The flag bit of data packet is responsible for pointing out the type of data packet；
Global identifier is generated by client, to identify the both sides of connection；
Version number is responsible for pointing out the protocol version used in data packet；
Sequence number represents the number of data packet, monotonic increase；
The data packet for having two classes special does not carry data frame, and one is version negotiation packet, is only sent by server, packet
Flag bit is 00000001B, it is filled only with the version number of itself support, for establishing in addition to logo area and connection ID
Negotiation during connection；Another kind of is resetting packet, and the flag bit of packet is 00000010B, in addition to logo area and connection ID,
Data packet sequence row number comprising rejection, allows other side to retransmit.
Data payload is made of many data frame fillings, and data frame can not be divided again.The structure of data frame includes one 8
The tag slot of position；The stream number of one 32；The stream offset of one 64；The data length of one 16, data field is not because
With frame and it is different.
The type of frame is responsible for pointing out in the tag slot of frame, and different logo area binary codes represents different frame types, do not make
Binary code is then reserved, and is prepared for later extension；
Stream number is responsible for pointing out affiliated stream；
Stream offset points out the first address of data contained by this frame relative displacement in entire stream；
Data length points out the length of data field；
As shown in figure 3, the transmission method for implementing the present invention is broadly divided into following steps：
(1) step：Startup stage, both-end carry out information reconciliation, establish connection：
1) when a port a1 of customer end A needs and some port b1 of a server B establishes connection, A is examined first
Linkage record is whether there is before surveying both-end, that is, whether there is with (A, a1, B, b1) corresponding connection ID；If in the presence of directly
Connected streaming data；If not depositing linkage record, client sends the company of unlatching by Information Network to far-end server
The request connect；
2) there is no during linkage record, both-end needs are held consultation, and the first packet that customer end A is sent can include one 64
The version number of connection ID and use (such as：0x00000001)；
3) after server B receives data packet, if the packet version number that customer end A is sent is supported, server returns
The packet version sign position 0 returned represents connection and establishes；And in the term of validity of this connection, both sides are using this version
1 round-trip delay of consumption is established in agreement, at this time connection；
If 4) the invention version of customer end A is not supported by server, server can inform the agreement that client is supported
This, and customer end A can select a protocol version to ask to establish connection again after receiving；If negotiating successfully, client can receive
The packet without version identifier that server-side is sent, represents successful connection, and both sides' transmission data packet all can be by version identifier later
It sets to 0, connection at this time, which is established, to be needed to consume 1 to 2 round-trip delays.
(2) step：The transmission stage of data mainly completes the transmission of data, including data packet using stream stream
Transmission and packet loss re-transmission；Stream is a kind of logical construction, in order to preferably carry out the transmission of parallel duplex, as shown in Fig. 2, should
With data it is encapsulated in frame structure, then in recombinant a to data packet.
1) by taking customer end A wants a picture in requested webpage as an example, a TCP connection is re-established relative to HTTP,
It only needs to reopen a logic flow, and the STREAM frames opened by sending a statement stream (dispense frame into data packet
Send), STREAM frames also include the new STREAM ID for initiating stream connection, are responsible for noticing to opposite end in addition to the logo area of 8
New stream number；Customer end A enables stream serial number that is incremental and being odd number (if server B initiates logic flow then serial number
Incremental even number), the stream number of first STREAM frame is 1.If server B, which does not receive stream, opens frame, RST_ can be sent
STREAM frames inform that unsuccessful and error reason is established in connection, customer end A is sent again after adjusting accordingly to client
STREAM frames.Once flowing successful connection to establish, data later just this name for flowing number can be integrated into data packet with number 1
It is sent；
2) in data transmission procedure, customer end A sends data packet in serialized fashion, with the two of length 48
System position is indicated, and sequence numbers of these distribution are globally unique and monotonic increase；
If 3) there is packet loss, the sequence number based on data packet is retransmitted：As shown in figure 3, customer end A parsing is to server
The content in the acknowledgement frame (ACK frames) of B transmissions is held, acknowledgement frame is in addition to indicating frame type (as shown in Figure 2) on head, also comprising 3
Kind information：1. the maximum packet serial number that receiving terminal receives at present；2. before this maximum packet serial number, if there is unreceived packet,
Mark the offset of the serial number；3. before maximum serial number, the data packet serial number that is successfully received；Customer end A can be to explicitly marking
The packet for being denoted as loss carries out Fast retransmission, and the data packet of re-transmission can be sent with new sequence number.If a data packet does not have
Relevant confirmation message is received, by setting a timer, time-out can autonomous retransmission；
Packet serial number-unreceived packet serial number that sequence number offset amount=maximum receives
4) according to the packet serial number received, double hair timings send STOP_WAITING frames to update affirming score, STOP_
WAITING frames are included still in the minimum packet serial number for waiting for confirmation message.Data packet comprising acknowledgement frame also has corresponding sequence
Number, if the data-bag lost comprising acknowledgement frame, it can also be restored according to the acknowledgement frame that opposite end is sent or carry out time-out weight
It passes；
5) when this picture is able to deliver successfully, the stream at place can disconnect because stream is two-way, there are contract fully and
Semi-closed state；Under normal circumstances, if data of the server B on some stream have been sent completely, half pass can be performed
The FIN positions in flag of frame area in the frame finally sent, are set as 1 (logo area the 7th) by closed operation；If both-end is all sent simultaneously
The signal that stream is closed is had received, then stream is successfully closed；If exception occurs in steaming transfer, one end can send RST_STREAM frames
To opposite end and no longer transmission data；The time difference there are one meetings between transmission RST_STREAM frames and opposite end receive the hardwood,
If still receiving the data frame of opposite end transmission during this, it is that itself is no longer sent still to receive these data frames.
(3) step：After data are transmitted substantially, connection prepares to disconnect；The disconnection of connection level can there are two types of
Method：
1) the first transmission process inerrancy, belongs to normal disconnection, just arranges a time-out during connecting the negotiation of foundation
Timer, once all off connection of all streams enters the free time, and free time then sends automatically more than timer
CONNECTION_CLOSE frames are closed, and connection disconnection represents a multimedia visit and terminates；
2) there is the abnormal disconnection of mistake second, actively disconnection side first sends a GOAWAY frame to other side, is included in frame
Error code and actively the max-flow number received by the side of disconnection, inform that a connection is closed in preparation；Itself will not newly be opened later
Logic flow does not receive the new application (no longer receive number and be more than the stream identified in GOAWAY frames) for opening logic flow of other side yet, etc.
It treats that current all streams are closed, treats that all streams retransmit CONNECTION_CLOSE frames and close entire connection after closing.
The solution have the advantages that two nodes in Information Network, one end accesses another as client
Node, when carrying out the access of multimedia messages, using this method, the multidiameter delay in satellite link can effectively reduce redundancy company
The foundation connect；And the expense that connection is established is reduced, improves the efficiency of transmission under space environment；More traditional HTTP multimedias pass
Transmission method can be effectively reduced the time of multimedia messages loading, there is preferable performance boost.
The specific example of combining space information network realizes height to be described in detail by Information Network during more than content
Imitate principle and the effect of multimedia transmission method.The specific implementation of the invention is not to be limited to these illustrations.For this
For the those of ordinary skill of technical field that the present invention belongs to, without departing from the inventive concept of the premise, it can also make several
Deduction or replace should all be considered as protection scope of the present invention.
Claims (3)
1. a kind of efficient multimedia transmission method for Information Network, client node is accessed by Information Network
Server node, the html file of transmission server node, word, image multimedia resource；It is characterised in that it includes following step
Suddenly：
1)：The transmission start stage；Carry out multimedia transmission, it is necessary first to connection is established, when client is connect with server,
It only needs once to be shaken hands；If both ends are First Contact Connections, client can generate the connection of one 64 at random
ID, client send first request data package in just include connection negotiation information, including invention version number and
connection ID；If opposite end detects that the version number in negotiated packet meets the requirements, a connection, both sides are established in agreement
Record this connection ID, the two next ports are in need when establishing connection again, since there are this connection IDs
Record, then do not negotiate to be directly entered data transfer phase；The three-way handshake of Transmission Control Protocol is compared, reduces the time that connection is established；
The 2) multipath concurrence transmission data, comprise the steps of：
Step 1：When upper layer application initiates new multimedia content request, it is only necessary to it is new to send the STREAM frames notice opened and flowed
Stream number, the frame comprising application data can be encapsulated into data packet and sent by stream after being successfully established；
Step 2：In the transmission stage of multimedia service, the reliability of transmission is mainly using serializing transmission and packet loss retransmission mechanism
Method ensured；By a counter, serializing number is carried out to each data packet；
Step 3：To the packet of loss, can be identified in acknowledgement frame (ACK frames) inner negative confirmation area of return, compared to TCP
Selection retransmit (SACK), the number that identifies of negative confirmation is expanded to 256；The letter that sender can feed back according to acknowledgement frame
Breath, Fast retransmission is explicitly marked the data packet for being, and distributes completely new sequence number to the packet retransmitted, is reduced hair and is repeated
Serial number packet and the ambiguity caused；
Step 4：In order to reduce the range that response is needed to confirm, the both sides of transmission need timing transmission STOP_WAITING frames (to stop
Only wait for frame), it informs that other side carries out the packet serial number lower limit of response confirmation, reduces the computer capacity of confirmation；If a data packet was both
There is no negative tag not within positive acknowledgment serial number, and the serial number of the packet is less than the lower limit that STOP_WAITING frames provide yet,
It is then irrecoverable；
Step 5：Server, can be by the FIN flag position of the last one frame of transmission after the transmission for completing a multimedia content
1 is put, represents the end of a stream；FIN flag expression informs that this transmission of receiving terminal terminates；
3)：The end of transmission stage.After all streams are all closed, the connection closed of both-end.
2. the efficient multimedia transmission method according to claim 1 for Information Network, which is characterized in that will be more
Road is concurrently applied to the transmission of Information Network, and by adding in the data structure of frame, the transferring content of multimedia service is sealed
The frame to be numbered with not cocurrent flow is filled, then frame is encapsulated into the unified transmission of data packet.
3. the efficient multimedia transmission method according to claim 1 for Information Network, which is characterized in that connection
Establish process, one end is initiating the connection previous existence into connection ID, the connection of this connection ID unique mark
Both sides, first packet carries negotiation information (connection ID and method version), if method version is supported in opposite end, once
It shakes hands and establishes connection；And by way of recording connection ID, follow-up both-end is without negotiation can the company of foundation again
It connects.
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| CN201711454484.7A CN108173851B (en) | 2017-12-28 | 2017-12-28 | High-efficiency multimedia transmission method for spatial information network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711454484.7A CN108173851B (en) | 2017-12-28 | 2017-12-28 | High-efficiency multimedia transmission method for spatial information network |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971512A (en) * | 2019-12-09 | 2020-04-07 | 北京仿真中心 | Communication method and system |
| CN111277319A (en) * | 2020-01-20 | 2020-06-12 | 中国电子科技集团公司电子科学研究院 | Inter-satellite-ground data transmission method and device |
| CN111461954A (en) * | 2020-03-31 | 2020-07-28 | 四川九强通信科技有限公司 | Image safe distribution system and method based on spatial information network |
| CN111901075A (en) * | 2020-07-16 | 2020-11-06 | 华中科技大学 | Multi-network convergence transmission method, transmission system and computer-readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840917A (en) * | 2014-03-28 | 2014-06-04 | 北京邮电大学 | Multipath parallel transmission scheme based on network coding |
| CN104717259A (en) * | 2013-12-16 | 2015-06-17 | 中国科学院声学研究所 | Multi-path data transmission system and method assisted by distributed transit server network |
| CN106452883A (en) * | 2016-10-21 | 2017-02-22 | 上海卫星工程研究所 | A spatial information network space-based test system and a work method thereof |
| US20170353242A1 (en) * | 2016-06-02 | 2017-12-07 | Mohammad Mehdi Mansouri Rad | Transmission Adjustment for Space Division Multiplexing of Optical Signals |
-
2017
- 2017-12-28 CN CN201711454484.7A patent/CN108173851B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717259A (en) * | 2013-12-16 | 2015-06-17 | 中国科学院声学研究所 | Multi-path data transmission system and method assisted by distributed transit server network |
| CN103840917A (en) * | 2014-03-28 | 2014-06-04 | 北京邮电大学 | Multipath parallel transmission scheme based on network coding |
| US20170353242A1 (en) * | 2016-06-02 | 2017-12-07 | Mohammad Mehdi Mansouri Rad | Transmission Adjustment for Space Division Multiplexing of Optical Signals |
| CN106452883A (en) * | 2016-10-21 | 2017-02-22 | 上海卫星工程研究所 | A spatial information network space-based test system and a work method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 张乃通,赵康僆,刘功亮: "对建设我国天地一体化信息网络的思考", 《中国电子科学研究院学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110971512A (en) * | 2019-12-09 | 2020-04-07 | 北京仿真中心 | Communication method and system |
| CN111277319A (en) * | 2020-01-20 | 2020-06-12 | 中国电子科技集团公司电子科学研究院 | Inter-satellite-ground data transmission method and device |
| CN111461954A (en) * | 2020-03-31 | 2020-07-28 | 四川九强通信科技有限公司 | Image safe distribution system and method based on spatial information network |
| CN111901075A (en) * | 2020-07-16 | 2020-11-06 | 华中科技大学 | Multi-network convergence transmission method, transmission system and computer-readable storage medium |
| CN111901075B (en) * | 2020-07-16 | 2021-11-23 | 华中科技大学 | Multi-network convergence transmission method, transmission system and computer-readable storage medium |
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| Publication number | Publication date |
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| CN108173851B (en) | 2020-07-03 |
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