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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, failure to fully consider network application scenarios, failure to consider different business traffic, etc.

Active Publication Date: 2021-01-05
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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  • Satellite traffic routing method and system based on energy perception and load balancing
  • Satellite traffic routing method and system based on energy perception and load balancing
  • 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. The method comprises the following steps: pre-calculating and storing a topologicaladjacency matrix, updating satellite congestion and energy information through a broadcast packet, and calculating a routing table according to routing schemes of different services. According to theinvention, the transmission demands of different service traffic are taken into consideration, transmission can be carried out via the shortest path on the premise of ensuring reliable transmission;through simulation verification, a routing algorithm can prolong the service life of a network, enables the network to have more uniform energy, reduces the loss rate of the packet, improves throughput, and effectively ensure the transmission of reliable services in an energy-limited network; and according to a provided flow classification routing algorithm, different routing schemes are adopted according to service characteristics,QoS requirements of different services can be met especially under the conditions of network congestion and a low network energy level, network load balance is realized, and the utilization of network resources is optimized.

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...

Claims

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Application Information

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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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