A Routing Method Between Groups of Distributed Satellite Networks

A satellite network and distributed technology, applied in the field of constellation network, can solve the problems of distributed constellation routing and other problems, achieve the effect of improving routing efficiency and avoiding the increase of waiting delay

Active Publication Date: 2016-09-21
DALIAN UNIV
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Problems solved by technology

[0003] In view of the above problems, the present invention proposes a routing method between distributed satellite network groups, which solves the problem of distributed satellite group routing

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  • A Routing Method Between Groups of Distributed Satellite Networks
  • A Routing Method Between Groups of Distributed Satellite Networks
  • A Routing Method Between Groups of Distributed Satellite Networks

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Embodiment Construction

[0028] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.

[0029] Aiming at the fact that the existing satellite network routing algorithm uses the path length as the routing evaluation standard, which leads to the fact that the nearest path is not necessarily the optimal path, a fast and efficient routing selection algorithm is proposed. This method considers the state of the link, such as available bandwidth, transmission delay and bit error rate, etc., and applies the source-driven routing protocol (Ad hoc on-demand distance vectorrouting, AODV) to ensure that the satellite distance is reduced when the path is optimal. The delay of network communication is used to achieve the optimal purpose of communication.

[0030] Such as figure 1 As shown, a distributed satellite network constellation routing method according to an embodiment of the present invention includes:

[...

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Abstract

The present invention provides a routing method between distributed satellite network groups, including: when there is data in the source satellite group in the distributed satellite network that needs to be sent, sending the routing request to the main star of each satellite group in the distributed network; routing request When arriving at the main star of a satellite group, collect satellite information and the pheromone value in the AODV routing protocol; calculate the probability that the routing request will be sent to each satellite according to the next hop selection algorithm, from each satellite, according to the calculation of each satellite Probability, select the next hop satellite to send the routing request; every time a satellite passes, update the local pheromone according to the link delay and link available bandwidth, and select the next hop satellite to send the routing request according to the local pheromone; when After the destination satellite receives the routing request, it generates a routing reply, thereby establishing a reverse route between the source satellite and the destination satellite. The invention reduces the communication delay, increases the available bandwidth of the link, and improves the communication quality of the link.

Description

technical field [0001] The invention belongs to the technical field of constellation networks, and relates to a routing method among distributed satellite network groups. Background technique [0002] At present, the existing satellite routing algorithms are divided into two categories: virtual topology routing algorithms and virtual node routing algorithms according to the topology of the network. Most of these satellite routing algorithms are designed for low-orbit satellites, the constellation topology changes quickly, and the state of the link is not considered. The topology of distributed constellations is relatively stable, so traditional routing protocols cannot be directly applied to distributed constellation networks. Contents of the invention [0003] Aiming at the above problems, the present invention proposes a routing method between distributed satellite network groups, which solves the problem of distributed satellite group routing. [0004] On the one hand...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04W40/02H04L12/721H04L12/801
Inventor 刘治国张自敬
Owner DALIAN UNIV
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