Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Inter-satellite network broadcast communication high-throughput network coding and transmission method

A technology of network broadcasting and network coding, which is applied to the inter-satellite broadcast network of time division multiple access, and the high-throughput network coding transmission field of inter-satellite network broadcast communication, which can solve the problem of limited wireless channel bandwidth and communication rate not reaching the level of inter-satellite data. Broadcast, low communication efficiency and other problems, to achieve the effect of simple protocol, small changes, and improved network efficiency

Inactive Publication Date: 2017-07-14
BEIHANG UNIV
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this method is that it is simple to control, does not require complex communication protocols, and can realize the broadcast of satellite data on the entire network after a limited number of forwarding; The communication efficiency is low, and the communication rate is far from meeting the requirements of inter-satellite data broadcasting

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Inter-satellite network broadcast communication high-throughput network coding and transmission method
  • Inter-satellite network broadcast communication high-throughput network coding and transmission method
  • Inter-satellite network broadcast communication high-throughput network coding and transmission method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, a high-throughput network coding transmission method for inter-satellite network broadcast communication of the present invention comprises the following steps:

[0019] Step 1: If it is not the sending time slot of the satellite, it is in the receiving state, and initializes a forwarding counter C locally for each frame of data, C∈{1,2,3,…}.

[0020] Step 2: When sending the time slot, for the received frame whose forwarding counter is not 0, use random linear network coding to generate a coded packet for all the data in frame unit, and forward it together with the data of the current frame.

[0021] Step 3: Decrement the corresponding counter by one for the frame that is forwarded in the sending time slot.

[0022] Step 4: Solve the received data of the same frame of linear equations to obtain a complete frame of data, wherein the decodi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an inter-satellite network broadcast communication high-throughput network coding and transmission method. The method comprises the steps of S1, if current time is not a sending time slot of a satellite, indicating that the satellite is in a receiving state and initializing a forwarding counter C for each frame of data locally, wherein the C is an element of a set {1, 2, 3,...}; S2, for the received frame of which forwarding counter is not 0 in the sending time slot, generating a coding packet based on all data by taking a frame as a unit through random linear network coding, and forwarding the coding packet and the current frame of data; S3, for the frame forwarded in the sending time slot, subtracting 1 by the corresponding counter; S4, carrying out linear equations calculation on the received same frame of data, thereby obtaining a complete frame of data; and S5 finishing the method. According to the method, the problem that according to a traditional flooding protocol, the network throughput is reduced due to the fact a great number of redundant data packets are sent is solved, the fact that the traditional flooding protocol is characterized in no feedback link and simple protocol is maintained, and direct upgrading can be carried out based on software of the traditional flooding protocol.

Description

technical field [0001] The invention relates to a high-throughput network coding transmission method for inter-satellite network broadcast communication, which relates to the field of satellite communication networks, in particular to an inter-satellite broadcast network for time division multiple access. Background technique [0002] With the improvement of satellite intelligence level, the inter-satellite link is added to the satellite to realize the transmission of data between satellites, and the antenna adopts a directional antenna, which can cover multiple satellites in the same constellation within its effective communication range. At present, under the condition of time-division multiple access, the broadcast communication of each satellite data in the constellation widely adopts the method of flooding, that is, all the data it receives is forwarded. The advantage of this method is that it is simple to control, does not require complex communication protocols, and c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04B7/185H04L1/00H04L12/721
CPCH04B7/18521H04L1/0076H04L45/32
Inventor 常青李显旭梁亚萍杨伟才王昊徐勇
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com