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SDSIN-based multi-task routing method

A multi-tasking and routing technology, applied in the field of satellite networks, can solve the problems of unbalanced link load, low network resource utilization, uncontrollable QoS attributes, etc., to achieve the effect of dynamic control and flexible sharing

Active Publication Date: 2018-07-20
DALIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this transmission model only guarantees the QoS attribute of one data flow, making the QoS attributes of other data flows uncontrollable, and still cannot solve the problems of unbalanced link load and low utilization of network resources.

Method used

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  • SDSIN-based multi-task routing method

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Embodiment Construction

[0074] The present invention will be further described below in conjunction with the accompanying drawings.

[0075] The present invention first establishes a software-defined spatial information network architecture, such as figure 1 As shown, the present invention uses a software-defined network architecture, which is divided into an application plane, a control plane and a data plane, wherein the application plane is communicated by the application plane control center through the Internet ground network, and the control plane is controlled by three GEO satellites. The application plane transmits information through the northbound interface protocol. The data plane can be composed of different local area networks, such as ring network, star network and mesh network. The data plane and the control plane perform data interaction through the OpenFlow protocol. Separated from the control plane, the satellites only need to implement simple forwarding. In actual network deploymen...

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Abstract

The invention discloses a SDSIN-based multi-task routing method. The method comprises the following steps: establishing a reasonable network model; carrying out spatial task level division; establishing a mathematical model based on an SDSIN multi-task routing method; making a link parameter decision; and carrying out weight updating. On the basis of the machine learning algorithm, the method considers a plurality of factors such as link state parameters and spatial tasks fully to realize optimal path selection, so that the utilization rate of network resources is increased and a congestion phenomenon of local links is avoided. Meanwhile, QoS requirements of various spatial tasks are met. With full consideration of link characteristics like transmission delay, a packet loss rate and a remaining bandwidth, a training set is trained based on the parameters; the link parameter weights are updated; and thus the multi-tasking routes are selected and recorded. Therefore, the utilization rateof the underlying resources is increased and the load balancing across the entire network is realized.

Description

technical field [0001] The present invention relates to a satellite network, in particular to a software defined spatial information network (Software Defined Spatial Information Network, SDSIN for short). Background technique [0002] With the emergence of various new tasks and new applications (ocean navigation, emergency rescue, navigation and positioning, aerospace measurement and control, etc.), many different new requirements have been put forward for wireless networks. In order to solve the problems of diverse types of wireless network nodes, large differences in capabilities, different technical systems, high data transmission delays and error rates in communication links, dynamic changes in network topology, and diverse service quality requirements for services, researchers use software-defined Network (Software Defined Network, SDN) technology shields protocol heterogeneity and enables rapid network deployment. However, the shortest path routing strategy is adopte...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W28/08H04W40/10H04W40/12H04W84/06H04B7/185H04L12/725H04L12/803
CPCH04B7/1856H04L45/302H04L47/125H04W28/0268H04W40/10H04W40/12H04W84/06H04W28/082
Inventor 潘成胜杨力魏德宾孔志翔
Owner DALIAN UNIV
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