UAV-assisted cognitive satellite ground communication network multi-point cooperative transmission method

A technology of multi-point cooperation and communication network, which is applied in the field of multi-point cooperative transmission of UAV-assisted cognitive satellite ground communication network to achieve the effect of improving the transmission rate performance.

Active Publication Date: 2019-04-05
ZHENGZHOU UNIVERSITY OF AERONAUTICS
View PDF6 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a multi-point cooperative transmission method for UAV-assisted cognitive satellite ground communication network, solve the problem of multi-point cooperative transmission in the existing UAV-assisted cognitive satellite ground communication network, and improve spectrum utilization and data transmission rate, under the condition of satisfying the interference constraints of users in the primary system, the transmission rate performance of the secondary system can be improved to the greatest extent

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • UAV-assisted cognitive satellite ground communication network multi-point cooperative transmission method
  • UAV-assisted cognitive satellite ground communication network multi-point cooperative transmission method
  • UAV-assisted cognitive satellite ground communication network multi-point cooperative transmission method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] combine figure 2 The flow chart shown in the present invention specifically describes the UAV-assisted cognitive satellite ground communication network multi-point cooperative transmission method: the UAV-assisted cognitive satellite ground communication network includes a main-level communication system composed of satellites and ground stations And a secondary communication system composed of cellular base stations, ground users, and UAV nodes. In the primary communication system, the satellite sends data to the ground station. The secondary communication system shares the authorized frequency band of the primary communication system. The UAV nodes follow the Fly on a specified path and transmit data to users on the ground at the same time as the cell base station.

[0028] 1). Establish a three-dimensional space Cartesian coordinate system ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to an UAV-assisted cognitive satellite ground communication network multi-point cooperative transmission method, and relates to the technical field of heaven and earth integrated communication and cognitive networks. By taking maximizing the transmission rate of terrestrial users as a target, taking an UAV (unmanned aerial vehicle) node flight trajectory, an UAV nodetransmit power and a cellular base station transmit power as optimized variables and considering the constraint conditions such as the interference temperature threshold of a secondary-level system for a main-level system, the UAV node flight condition constraint and the cellular base station transmit power, a mathematical model is established, the model is solved to obtain the optimal scheme of multi-point cooperative transmission. The UAV-assisted cognitive satellite ground communication network multi-point cooperative transmission method can maximumlly improve the transmission rate performance of the secondary-level system in a condition of meeting the interference constraint of users in the main-level system.

Description

technical field [0001] The invention relates to the field of space-ground integrated communication and cognitive network technology, in particular to a multi-point cooperative transmission method for UAV-assisted cognitive satellite ground communication network. Background technique [0002] Due to its good link transmission reliability and wide coverage area, satellite communication has been widely used in navigation and positioning, remote sensing detection, weather forecast and emergency communication, and it is an important supplement to land mobile communication systems. Means to provide communication support functions for some harsh natural conditions and remote areas. The authorized spectrum used by satellite communication is usually only used for the satellite system of this level, and is no longer allocated to other communication systems. However, the relevant statistical conclusions show that the existing communication system has a very serious waste problem in te...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityApplications(China)
IPC IPC(8): H04W16/14H04W16/22H04B7/185
CPCH04B7/18504H04W16/14H04W16/22Y02D30/70
Inventor王毅华梦马鹏阁刘兆瑜郭荣幸杨少川郭慧
OwnerZHENGZHOU UNIVERSITY OF AERONAUTICS