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UAV position optimization method and device for multi-user emergency communication network

A technology of emergency communication and optimization method, applied in wireless communication, vehicle wireless communication service, service based on location information, etc., can solve problems such as poor transmission, ensure transmission reliability, best transmission effect, reduce total Effect of Outage Probability

Active Publication Date: 2020-09-01
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a UAV position optimization method and device for a multi-user emergency communication network, which solves the technical problem of poor transmission in the communication transmission process

Method used

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  • UAV position optimization method and device for multi-user emergency communication network
  • UAV position optimization method and device for multi-user emergency communication network
  • UAV position optimization method and device for multi-user emergency communication network

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Experimental program
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Embodiment 1

[0039] Such as figure 1 and 2 As shown, an embodiment of the present invention provides a multi-user emergency communication network-oriented UAV position optimization method, including the following steps:

[0040] Obtain an emergency communication network, the emergency communication network includes drones, users and core network; in the actual application process, the user sends a signal to the drone, the drone decodes and forwards, and the core network receives the signal; preferably, no The human-machine adopts DF mode to forward the signal of the client;

[0041] Calculate the first instantaneous channel capacity from the user to the UAV in the emergency communication network, and the second instantaneous channel capacity from the UAV to the core network;

[0042] Substituting the first instantaneous channel capacity and the second instantaneous channel capacity into the expression of the total outage probability of the emergency communication network, the minimum tot...

Embodiment 2

[0044] Based on the same inventive concept as in Embodiment 1, the embodiment of the present invention provides a UAV position optimization device for a multi-user emergency communication network, including:

[0045] An acquisition unit, configured to acquire an emergency communication network, the emergency communication network including drones, users, and a core network;

[0046] The calculation unit is used to calculate the first instantaneous channel capacity from the user to the UAV in the emergency communication network, and the second instantaneous channel capacity from the UAV to the core network;

[0047] The solving unit is used for substituting the first instantaneous channel capacity and the second instantaneous channel capacity into the expression of the total outage probability of the emergency communication network to solve the minimum total outage probability and obtain the best three-dimensional position of the UAV.

[0048] UAVs, users, and core network are ...

Embodiment 3

[0050] An embodiment of the present invention provides a multi-user emergency communication network-oriented UAV position optimization method, which specifically includes the following steps:

[0051] Step 1: Obtain an emergency communication network, which includes drones, users and core networks.

[0052] Step 2: Calculate the first instantaneous channel capacity from the user to the UAV in the emergency communication network, and the second instantaneous channel capacity from the UAV to the core network. Specifically, taking the same bandwidth of two hops as an example, but not limited to the same bandwidth of two hops, it can be extended to the situation where the bandwidth of two hops is different, such as the second hop adopts millimeter wave communication, to obtain the first instantaneous channel capacity and the second instantaneous channel capacity The method of channel capacity is as follows:

[0053]

[0054]

[0055]

[0056] and respectively represent ...

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Abstract

The invention discloses a multi-user emergency communication network-oriented UAV position optimization method. The method is suitable for data transmission between the user end and the core network in the emergency communication scene, and uses the user, the UAV and the core network to form an emergency response system. For the communication network, considering the minimization of the total outage probability of the emergency communication network as the optimization goal, the optimal three-dimensional space position of the UAV deployment is obtained through an iterative optimization algorithm. Also disclosed is an unmanned aerial vehicle position optimization device for a multi-user emergency communication network, including: an acquisition unit, a calculation unit, and a solution unit. The invention minimizes the total interruption probability by jointly optimizing the height and horizontal position of the drone, and effectively ensures the transmission reliability of the wireless emergency communication network.

Description

technical field [0001] The invention belongs to the field of wireless communication networks, and in particular relates to a method and device for optimizing the position of an unmanned aerial vehicle oriented to a multi-user emergency communication network. Background technique [0002] At present, most of the research work in the field of wireless communication networks is mainly concentrated on land mobile communication systems. However, in the face of earthquakes, mudslides and other scenarios, there will often be large-scale communication interruptions in disaster areas, and traditional cellular wireless networks are limited to a certain extent. , causing inconvenience to the communication needs of the disaster area, and at the same time, it will affect the development of rescue activities in the disaster area. With its advantages of mobility and convenience, drones have become a strong support for assisting disaster rescue. However, at present, because the communicatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/029H04W4/40H04W4/90H04W24/04H04W24/08H04B17/309H04B17/336
CPCH04B17/309H04B17/336H04W4/029H04W4/40H04W4/90H04W24/04H04W24/08
Inventor 朱佳涂慧邹玉龙
Owner NANJING UNIV OF POSTS & TELECOMM