Post-disaster uav auxiliary communication area division method and system based on optimal transmission theory

A region division method and auxiliary communication technology, which is applied in the field of post-disaster UAV auxiliary communication area division, can solve the problems of limited airborne battery power and unsustainable airborne energy, and achieve the effects of energy efficiency maximization, effective utilization, and long-lasting service

Active Publication Date: 2022-06-21
SHANDONG NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although UAVs can achieve temporary network coverage, the existing UAVs have limited onboard battery power due to limitations in size and weight, resulting in the dilemma that the limited onboard energy of UAVs cannot provide services to users for a long time. In order to be able to To serve ground users more effectively and permanently, it is necessary to reasonably divide each UAV service area to achieve load balancing between each divided area, so as to maximize the energy efficiency of UAVs in this emergency wireless network.

Method used

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  • Post-disaster uav auxiliary communication area division method and system based on optimal transmission theory
  • Post-disaster uav auxiliary communication area division method and system based on optimal transmission theory
  • Post-disaster uav auxiliary communication area division method and system based on optimal transmission theory

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Embodiment 1

[0034] like figure 1 As shown, this embodiment provides an energy-efficient UAV-assisted communication area division method in a post-disaster area, including the following steps:

[0035] S1: Build a post-disaster UAV emergency wireless communication network model;

[0036] S2: Modeling and analysis of the post-disaster UAV emergency wireless communication network model, considering the downlink of UAV data transmission to ground users, that is, according to the communication bandwidth of each UAV and the number of ground users in the UAV auxiliary communication area, obtain UAV and ground users The communication bandwidth between the two, build the downlink communication model;

[0037] S3: According to the communication bandwidth and path loss between the UAV and the ground user, the transmission rate between the UAV and the ground user is obtained, and the UAV energy efficiency is obtained according to the communication transmission rate and the total power consumption of...

Embodiment 2

[0127] This embodiment provides a post-disaster UAV auxiliary communication area division system based on optimal transmission theory, including:

[0128] The downlink building block is configured to obtain the communication bandwidth between the UAV and the ground users according to the communication bandwidth of each UAV and the number of ground users in the UAV auxiliary communication area in the post-disaster UAV communication network model;

[0129] The energy efficiency calculation module is configured to obtain the transmission rate between the UAV and the ground user according to the communication bandwidth and path loss between the UAV and the ground user, and obtain the UAV energy efficiency according to the communication transmission rate and the total power consumption of the UAV itself;

[0130] The optimization module is configured to maximize the total energy efficiency of all UAVs as the objective function, and uses the optimal transmission theory to convert the...

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Abstract

The present invention discloses a post-disaster UAV auxiliary communication area division method and system based on the optimal transmission theory, including: in the post-disaster UAV communication network model, according to the communication bandwidth of each UAV and the number of ground users in the UAV auxiliary communication area, obtain The communication bandwidth between the UAV and the ground user; the transmission rate between the UAV and the ground user is obtained according to the communication bandwidth and path loss between the UAV and the ground user, and the UAV energy efficiency is obtained according to the communication transmission rate and the total power consumption of the UAV itself; the maximum The total energy efficiency of all UAVs is converted into an objective function, and the optimal transmission theory is used to convert the objective function into the transmission cost of minimizing the transmission mapping between the ground user coordinates and the UAV coordinates, and the optimal transmission mapping is obtained according to the transmission cost function, based on which the UAV auxiliary communication is divided area. Reasonably plan the connection between UAV and ground users, solve the problem of limited UAV airborne energy, avoid overloaded areas, achieve load balancing in each area, and ensure the maximum UAV total energy efficiency.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a post-disaster UAV auxiliary communication area division method and system based on optimal transmission theory. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The occurrence of natural disasters often causes huge economic losses to the affected areas, and at the same time causes damage to ground communication facilities (such as ground base stations), which not only brings severe challenges to the implementation of emergencies such as rescue missions, but also brings serious challenges to the people in post-disaster areas. In addition, the terrestrial communication facilities are often complex in structure, time-consuming to build, and difficult to restore in a short time, so the construction of an emergency network after a di...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04W4/021H04W4/40H04W4/90H04W28/02H04W28/08H04W28/18
CPCH04W4/021H04W4/40H04W4/90H04W28/0221H04W28/08H04W28/18Y02D30/70
Inventor田杰王娣纪秀朝陆佃杰
OwnerSHANDONG NORMAL UNIV