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Wireless communication method, device and equipment, and readable storage medium

A wireless communication and communication network technology, applied in the field of wireless communication methods, devices, equipment and readable storage media, can solve problems such as inability to guarantee real-time and reliable communication, and limit the use range of drones

Active Publication Date: 2018-11-30
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the main focus is on a single drone as a relay auxiliary communication, which greatly limits the scope of use of drones
In the case where the communication parties are far away, such as in desert areas without communication infrastructure, or in earthquake-stricken areas with severely damaged base stations, a single drone relay cannot guarantee real-time and reliable communication

Method used

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  • Wireless communication method, device and equipment, and readable storage medium
  • Wireless communication method, device and equipment, and readable storage medium
  • Wireless communication method, device and equipment, and readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Please refer to figure 1 , figure 1 It is a flowchart of a wireless communication method in an embodiment of the present invention. The method can be as figure 2 The shown is applied to a communication network using drones to realize multi-hop relay. Among them, UAV (Unmanned Aerial Vehicle / Drones, drone) is used as a relay, Source (source) is the source of fixed base stations, and Destination (destination) is the sink of mobile communication terminals (such as mobile phones, communication watches and other communication devices).

[0062] The method includes the following steps:

[0063] S101. Obtain channel information and the number of drones, and use the channel information and the number of drones to create a system throughput calculation model.

[0064] Wherein, the system throughput calculation model is a model for calculating the system throughput by using the transmission power allocated to the source and each UAV and the flight trajectory of each UAV;

...

Embodiment 2

[0077] Please refer to image 3 , image 3 It is a flowchart of another wireless communication method in an embodiment of the present invention, and the method includes the following steps:

[0078] S201. Obtain channel information and the number of unmanned aerial vehicles, and use the channel information to determine the flying height, starting position and end position of the unmanned aerial vehicles, as well as channel power gain.

[0079] S202. Create a system throughput calculation model by using the flight altitude, the starting position, the ending position, the number of drones, and the channel power gain.

[0080] Wherein, the system throughput calculation model is a model for calculating the system throughput by using the transmission power allocated to the source and each UAV and the flight trajectory of each UAV;

[0081] For ease of description, the above step S201 and step S202 will be combined for description below.

[0082] When the landform between the sou...

Embodiment 3

[0125] Please refer to Figure 4 , Figure 4 It is a flowchart of another wireless communication method in an embodiment of the present invention, and the method includes the following steps:

[0126] S301. Obtain channel information and the number of drones, and use the channel information and the number of drones to create a system throughput calculation model.

[0127] Wherein, the system throughput calculation model is a model for calculating the system throughput by using the transmission power allocated to the source and each UAV and the flight trajectory of each UAV;

[0128] Next, the block coordinate descent method is used, that is, the problem of optimizing system throughput (P1) is divided into two sub-problems (problem P2: transmit power optimization problem; problem P4: flight trajectory optimization problem) to solve.

[0129] S302. Input the preset initial flight trajectory into the system throughput calculation model.

[0130] S303. Under the preset transmit...

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Abstract

The invention discloses a wireless communication method applicable to a communication network using a UAV to realize multi-hop relay, which comprises the following steps: acquiring channel informationand the number of UAVs, and creating a system throughput calculation model by using the channel information and the number of the UAVs; using a block coordinate descent method and a continuous convexoptimization method to carry out iterative optimization on transmit power and flight trajectory in the system throughput calculation model and obtaining optimized flight trajectory and optimized transmit power; and achieving communications by using the optimized transmit power and the optimized flight trajectory in the communication network. Thus, the degree of freedom of the UAVs can be fully utilized to achieve long-distance communication in the signal blind area that the base station cannot cover, and the system throughput can also be optimized. Correspondingly, the embodiment of the present invention further provides such a wireless communication device and equipment and a readable storage medium, which have corresponding technical effects.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a wireless communication method, device, equipment and readable storage medium. Background technique [0002] Due to its characteristics such as low cost, high mobility, and on-demand deployment, unmanned aerial vehicle (UAV) has been widely used in military and civilian fields, such as search and rescue, inspection, surveillance, and cargo transportation. [0003] In recent years, drones have also found more and more practical applications in the field of wireless communication. UAV as a relay auxiliary communication is also a research hotspot in recent years. Compared with traditional fixed-position relay nodes, UAV relay can use its freedom of movement to solve the communication problem of signal blind areas that cannot be covered by fixed base stations. [0004] At present, the main focus is on a single drone as a relay to assist communication, which greatly l...

Claims

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Application Information

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IPC IPC(8): H04W4/40H04W24/02H04B7/185
CPCH04B7/18504H04W24/02H04W4/40Y02D30/70
Inventor 张广驰严海强崔苗林凡
Owner GUANGDONG UNIV OF TECH
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