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A satellite traffic routing method and system based on energy perception and load balancing

An energy-aware and load-balancing technology, applied in the field of satellite network routing, can solve problems such as inability to achieve effective satellite transmission, not fully considering network application scenarios, and not considering different business traffic, so as to achieve network load balancing and reduce packet loss rate , the effect of improving throughput

Active Publication Date: 2021-10-01
XI AN JIAOTONG UNIV
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Problems solved by technology

The existing satellite routing strategy does not fully consider the application scenarios of the network. Most of the satellite routing is aimed at a single service, and in the energy-constrained micro-satellite network, it only considers maximizing the network life, and does not consider the characteristics of different service traffic. Effective transmission between satellites cannot be achieved

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  • A satellite traffic routing method and system based on energy perception and load balancing
  • A satellite traffic routing method and system based on energy perception and load balancing
  • A satellite traffic routing method and system based on energy perception and load balancing

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Embodiment Construction

[0069] The present invention is described in further detail below in conjunction with accompanying drawing:

[0070] like figure 1 As shown, a satellite traffic routing method based on energy perception and load balancing includes the following steps:

[0071] Step 1), the topological information of each satellite is pre-calculated and stored on each star in the form of adjacency matrix X[k][i][j]; the topological information is the predictable information in the satellite network;

[0072] Each star restores the static topology data corresponding to each star when the snapshot is switched; each routing method is independently calculated on each star. In order to reduce the storage space on the star, the adjacency matrix is ​​used to store discrete topology information, and the adjacency matrix is ​​updated when the topology is updated. figure 2 shown.

[0073] The satellite network model is specifically: discretize the topology structure of the satellite continuous change ...

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Abstract

The invention discloses a satellite traffic routing method and system based on energy perception and load balancing. By pre-calculating and storing the topology adjacency matrix, updating satellite congestion and energy information through broadcast packets, and then calculating the routing table according to routing schemes of different services , taking into account the transmission requirements of different business flows, and can ensure reliable transmission by the shortest path. Through simulation verification, the routing algorithm can prolong the life of the network, make the network have more uniform energy, and reduce the packet loss rate, improve Throughput can effectively guarantee the transmission of reliable services in energy-constrained networks; the proposed traffic classification routing algorithm adopts different routing schemes according to service characteristics, especially in the case of network congestion and low network energy levels. The QoS requirements of different services can realize network load balancing and optimize the utilization of network resources.

Description

technical field [0001] The invention belongs to the technical field of satellite network routing, and in particular relates to a satellite traffic routing method and system based on energy perception and load balancing. Background technique [0002] With the rapid development of aerospace technology, the role of satellite communication in military and civilian fields has become increasingly prominent. With its real-time wide coverage and large transmission capacity, the satellite mobile communication system has become an extension of the ground mobile communication network and is an important link in the future space-ground integration scenario. [0003] Among the existing routing algorithms, Werner et al. proposed a snapshot switching model, which converts the dynamic network topology into static discrete snapshots to calculate routes. The Iridium system adopts equal time intervals to divide snapshots, centrally calculates routes, uploads and updates at regular intervals b...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04W40/10H04W40/12
CPCH04B7/18513H04B7/18519H04W40/10H04W40/12Y02D30/70
Inventor 任品毅郝林春杜清河
Owner XI AN JIAOTONG UNIV
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