UAV multi-coverage model and deployment method under power control

A technology for power control and unmanned aerial vehicles, applied in power management, wireless communication, radio transmission systems, etc., can solve the problem of unrealistic coverage scenarios, lack of emphasis on the ability of unmanned aerial vehicles to work together in groups, and not making good use of many unmanned aerial vehicles. Machine coordination and other issues

Active Publication Date: 2018-10-02
ARMY ENG UNIV OF PLA
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  • Abstract
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AI Technical Summary

Problems solved by technology

Most of the work does not emphasize the collaborative operation ability between UAV groups, does not make good use of the characteristics of multi-UAV collaboration, and defines the coverage too directly and simply, resulting in the coverage scenarios are often not practical enough

Method used

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  • UAV multi-coverage model and deployment method under power control
  • UAV multi-coverage model and deployment method under power control
  • UAV multi-coverage model and deployment method under power control

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Embodiment 1

[0115] A specific embodiment of the present invention is described as follows: the system simulation adopts Matlab software, and the parameter setting does not affect the generality; considering the unmanned aerial vehicle group communication network under the urban environment, under the premise of known task area information, the area is divided into 50 ×50 area blocks, the unit distance is 200m, and the flying height of the drone is uniformly set to 500m. figure 2 As an example of a task area under the UAV swarm network, set (15,35), (35,15) (×200m) as the center point of the special area, that is, the closer to the center point, the higher the importance of the task area, Optimize the calculation for the target, and normalize the importance of the total task area; set the carrier frequency carried by the UAV to 2000MHZ, and set other parameters to μ LoS = 1dB, μ NLoS =20dB, α=0.6, γ=0.11; σ LoS (θ j ) = k 1 exp(-k 2 θ j ), σ NLoS (θ j ) = g 1 exp(-g 2 θ j ), wh...

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Abstract

The invention discloses a UAV multi-coverage model and a UAV multi-coverage deployment method under power control. The UAV multi-coverage model is characterized in that: in a communication coverage scenario in the UAV network, the probability that an arbitrary task region can be covered by a UAV group network is decided by UAVs which can detect the region. The UAV multi-coverage deployment methodcomprises the steps of: firstly, constructing a UAV multi-coverage deployment model, wherein participants are all the UAVs in the UAV group network; secondly, constructing its own state set by each UAV, and dividing the other UAVs into neighbor UAVs and non-neighbor UAVs; thirdly, calculating the optimal coverage under the maximum transmission power to obtain an optimal coverage strategy; and finally, performing power control under current coverage deployment by adopting the optimal coverage strategy. The UAV multi-coverage model and the UAV multi-coverage deployment method can describe the coverage capability of the UAVs in the UAV group network for the ground precisely, and realize the minimization of power overhead on the premise of satisfying communication requirements.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to a multi-coverage model and a deployment method of an unmanned aerial vehicle under power control. Background technique [0002] UAV technology has developed rapidly in the past ten years. The characteristics of UAVs include small size, high mobility, and low communication overhead, which make UAVs widely used in both civilian and military applications. However, with the diversification and specialization of task requirements, a single UAV can no longer meet the needs of complex tasks. Therefore, it is necessary to build a UAV swarm to form a wireless sensing network for work, which also makes the UAV swarm network Cooperative communication becomes the key to the development of UAV technology. [0003] Studies have shown that UAV communication technology can often be transformed into practical applications within the area coverage. Therefore, area coverage is one ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04W16/18H04W16/22H04W52/38
CPCH04B7/18504H04W16/18H04W16/22H04W52/38
Inventor 王金龙陈瑾阮朗任国春徐煜华杨旸陈学强
Owner ARMY ENG UNIV OF PLA
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