Low energy consumption routing method based on inter-satellite communication
A low-energy, routing technology, applied in the field of communications, can solve the problems of no terrestrial cellular network coverage, inability to connect to the Internet of Things, etc., to achieve the effect of balanced energy consumption
Active Publication Date: 2022-04-22
CHONGQING UNIV OF POSTS & TELECOMM
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[0002] Although the Internet of Things based on the traditional terrestrial cellular network has matured, sensors in areas such as deep rift valleys or buoys on the sea are not covered by the terrestrial cellular network, so they cannot connect to the Internet of Things.
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[0086] The following embodiments of the present invention are illustrated by specific specific examples, those skilled in the art may easily understand other advantages and efficacy of the present invention by the contents disclosed in this specification. The present invention may also be implemented or applied by other specific embodiments, the details of the present specification may also be based on different views and applications, without departing from the spirit of the present invention under various modifications or changes. It should be noted that the illustrations provided in the following embodiments illustrate only the basic idea of the present invention in a schematic manner, without conflict, the following embodiments and features in the embodiments may be combined with each other.
[0087] Wherein, the drawings are only used for exemplary illustrations, representing only schematic diagrams, not physical drawings, can not be understood as a limitation of the present ...
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The invention relates to a low energy consumption routing method based on inter-satellite communication, which belongs to the technical field of communication. The method includes the calculation of improved three-dimensional Fermat points, the calculation of three-target area Fermat points, the selection of satellite nodes of Fermat points and the three-dimensional routing algorithm LEFTR of low energy consumption points. The invention improves the calculation method of the three-dimensional Fermat point, making it more suitable for inter-satellite communication; and proposes a direct calculation method of the Fermat point in three target areas in the three-dimensional environment. A Fermat point node finding algorithm is proposed to find nodes acting as transit transmissions. This algorithm is used to make the energy consumption of network transmission more balanced when it is necessary to find a transit transmission node after calculating the Fermat point. An efficient regional multicast algorithm LEFTR suitable for satellite communication is proposed. The algorithm is extended to multi-target areas, and a Fermat point tree is constructed by using the characteristics of Fermat points, which realizes low-energy data transmission in multi-target areas.
Description
Technical field [0001] The present invention belongs to the field of communication technology, relates to a low-energy routing method based on inter-satellite communication. Background [0002] Although the Internet of Things based on traditional terrestrial cellular networks has matured, sensors in areas such as deep rift valleys or maritime buoys are not within the coverage of terrestrial cellular networks and therefore cannot be connected to the Internet of Things. Satellite sensing networks, especially low-orbit satellites, because of their ease of long-range communication, can be used as a supplement to the coverage of the Internet of Things in non-cellular coverage areas, and have become a new direction for the development of the Internet of Things. [0003] Direct communication between low-orbit satellites, especially interstellar communication for regional group broadcasting, often consumes a lot of energy and has limited satellite energy, so it is particularly important...
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IPC IPC(8): H04B7/185H04W40/10H04W84/06
CPCH04B7/18521H04W40/10H04W84/06Y02D30/70
Inventor 苏畅谢显中王诗涵
Owner CHONGQING UNIV OF POSTS & TELECOMM