Multipath parallel and reliable transmission method applicable to satellite network

A transmission method and satellite network technology, applied in the field of satellite network communication, can solve problems such as increasing the load of satellite network

Active Publication Date: 2015-04-08
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the present invention finds through research that redundant transmission will inevitably increase ...

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  • Multipath parallel and reliable transmission method applicable to satellite network
  • Multipath parallel and reliable transmission method applicable to satellite network
  • Multipath parallel and reliable transmission method applicable to satellite network

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Embodiment Construction

[0090] For the convenience of description, we assume the following application examples, such as image 3 Shown: the source satellite node S needs to transmit data with a required bandwidth of 2048kb / s to the destination satellite node D, but the remaining link bandwidth in the satellite network can no longer support the single-path transmission mode. At this time, dividing the data into path 1 and path 2 for transmission can meet the requirements. Since the probability of reliable transmission of path 2 is low, the data on path 2 is repeatedly transmitted on path 3. For the convenience of description, here we assume that under the current spatio-temporal environment, three paths can meet the transmission requirements. The specific operation steps are as follows:

[0091] Step 1: The source satellite node S floods the flood path detection message to the destination satellite node D, and finally returns path 1, path 2, and path 3, and returns the available bandwidth and node rel...

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Abstract

The invention provides a multipath parallel and reliable transmission method applicable to a satellite network, and aims to improve the reliability of parallel transmission of a high-bandwidth data stream under a satellite network environment. According to the method, the concept of redundant transmission is mainly introduced into the parallel transmission, so that the problem that the parallel transmission of the high-bandwidth data stream is low in reliability is solved; furthermore, by combination of the specific condition of the satellite network, a method for reducing the influence of the redundant transmission on the load of the whole network is provided. According to a multipath bandwidth distribution scheme, an optimization math model is used for meeting the requirements that the parallel transmission of high-bandwidth data is used as a constraint condition and the reliability of the multipath transmission is used as an optimizing target, so that the effect of finishing the most reliable parallel transmission by only using finite multiple paths can be finally achieved.

Description

Technical field [0001] The invention relates to a multi-path reliable transmission method of high-bandwidth data streams under a satellite network, and belongs to the field of satellite network communication. In particular, it involves multi-path parallel and redundant transmission under satellite networks. Parallel transmission is used to achieve the basic transmission requirements of high-bandwidth data streams. Then, based on the evaluation of the entire network load, the number of redundant transmission paths is reasonably selected, and the redundant transmission is adopted. Enhance reliability. Background technique [0002] Satellite communication systems have become an indispensable part of global communications due to their characteristics such as freedom from geographic constraints, climatic conditions, and independent and flexible universal service capabilities. In recent years, with the increase in global business volume and the diversification of service types, the pr...

Claims

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Application Information

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IPC IPC(8): H04B7/185H04L1/22
CPCH04B7/18513H04B7/18534H04L1/22
Inventor 叶晓国朱安顺王明伟徐忠国吴昊钟鹏马连杰沈辉
Owner NANJING UNIV OF POSTS & TELECOMM
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