Network topology generation and routing allocation method and device for spatial information network
A technology of spatial information network and network topology, which is applied in the field of network topology generation and routing distribution of satellite-ground cooperative networks, and can solve the problems of loss of overall topology feature information, inability to intuitively display proximity information, and inability to further provide link performance. situation, etc.
Inactive Publication Date: 2019-01-01
BEIJING UNIV OF POSTS & TELECOMM
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[0006] In practical application, the inventors of the present invention have found that this representation has the following disadvantages: 1. This topology representation can only reflect whether the network nodes are connected or not connected, and cannot further provide the link between the two network nodes. The advantages and disadvantages of performance; 2. The matrix is too sparse, and can only intuitively reflect the first-order proximity of network nodes, and cannot intuitively express the second-order or higher proximity information, and the overall characteristic information of the topology is lost; 3. For star Such a large-scale network as a collaborative network, this representation will take up a lot of storage resources
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[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0026] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that when an element is referred to as being "connected" or "coupled" to another el...
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The invention discloses a network topology generation and routing allocation method and device for a spatial information network. The method comprises the following steps: determining the transfer probability between network nodes according to the link performance between the network nodes in the spatial information network; and obtaining the network topology of the spatial information network byvectorizing the relationship between the network nodes in two-dimensional space according to the transition probability between the network nodes. With application of the generated network topology, the connection state between the network nodes can be reflected and the quality of the link performance between the network nodes can also be reflected; the first-order proximity of the network nodes can be visually reflected and the second-order proximity information or above can also be visually reflected; and the efficient storage mode is provided.
Description
technical field [0001] The invention relates to the technical field of space information network, in particular to a method and device for network topology generation and routing distribution of a satellite-ground collaborative network. Background technique [0002] The space information network is a network system that acquires, transmits and processes space information in real time with space platforms (such as high, medium and low orbit satellites, balloons and aircraft) as the carrier. As an important national infrastructure, the space information network can support high-dynamic and broadband real-time transmission of earth observation while serving major applications such as mobile network systems, ocean navigation, emergency rescue, navigation and positioning, air transportation, and aerospace measurement and control. Upwards, it can support ultra-long-distance and long-delay reliable transmission of deep space exploration, so as to expand human science, culture, and ...
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Login to View More IPC IPC(8): H04L12/24H04L12/721H04L12/741H04L45/74
CPCH04L41/12H04L45/14H04L45/74
Inventor杨辉于奥张杰南静文
OwnerBEIJING UNIV OF POSTS & TELECOMM