Title:
SATELLITE-TERRESTRIAL INFORMATION NETWORK UNIFIED ROUTING METHOD BASED ON HYPERBOLIC GEOMETRY
Document Type and Number:
WIPO Patent Application WO/2021/203575
Kind Code:
A1
Abstract:
Provided is a satellite-terrestrial information network unified routing method based on hyperbolic geometry. The method comprises: S1, mapping nodes in a satellite-terrestrial information network in a three-dimensional geographic space to a three-dimensional hypersphere by means of stereographic projection; S2, performing hyperbolic radius component setting on points mapped to the three-dimensional hypersphere, and finally mapping coordinates of the nodes in the three-dimensional geographic space to a four-dimensional hyperbolic space to obtain hyperbolic coordinates; S3, calculating an included angle between two nodes in the four-dimensional hyperbolic space by using the acquired hyperbolic coordinates; S4, when routing is performed in the satellite-terrestrial information network, calculating a hyperbolic distance between the two nodes by using the acquired hyperbolic coordinates of the nodes and the included angle between the two nodes in the four-dimensional hyperbolic space; and S5, completing greedy routing forwarding according to the calculated hyperbolic distance between the two nodes. The satellite-terrestrial information network routing does not depend on a global link state and the distributed and centralized scheduling of router node information, a large amount of routing table storage overheads can be saved, and expandability is achieved.
Inventors:
LI HUI (CN)
LV SAI (CN)
HU JIAWEI (CN)
BAI HE (CN)
WANG HAN (CN)
WEI GUOHUA (CN)
QUE JIANMING (CN)
LIU TAO (CN)
YANG XIN (CN)
MA HUAJUN (CN)
LV SAI (CN)
HU JIAWEI (CN)
BAI HE (CN)
WANG HAN (CN)
WEI GUOHUA (CN)
QUE JIANMING (CN)
LIU TAO (CN)
YANG XIN (CN)
MA HUAJUN (CN)
Application Number:
PCT/CN2020/102116
Publication Date:
October 14, 2021
Filing Date:
July 15, 2020
Export Citation:
Assignee:
UNIV PEKING SHENZHEN GRADUATE SCHOOL (CN)
International Classes:
H04B7/185; H04L12/715; H04L12/721
Domestic Patent References:
| WO2010025094A1 | 2010-03-04 |
Foreign References:
| CN111193540A | 2020-05-22 | |||
| CN102238687A | 2011-11-09 | |||
| CN105307230A | 2016-02-03 | |||
| US20180248783A1 | 2018-08-30 |
Attorney, Agent or Firm:
SZ KINDWALF INTELLECTUAL PROPERTY FIRM (CN)
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