3D spectrum sharing method and device for cognitive unmanned aerial vehicle network

A technology of spectrum sharing and UAV, which is applied in the field of 3D spectrum sharing of cognitive UAV network, can solve the problem of low utilization rate of spectrum resources of ground base stations, and achieve the effect of improving spectrum utilization rate and throughput

Pending Publication Date: 2021-12-28
UNIV OF SCI & TECH BEIJING +1
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Problems solved by technology

[0005] Aiming at the problem that the three-dimensional space characteristics of each UAV are not fully considered in the prior art, and the spectrum resource utilization rate of the ground base station is low, the present invention proposes a 3D spectrum sharing method and device for a cognitive UAV network

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  • 3D spectrum sharing method and device for cognitive unmanned aerial vehicle network
  • 3D spectrum sharing method and device for cognitive unmanned aerial vehicle network
  • 3D spectrum sharing method and device for cognitive unmanned aerial vehicle network

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[0097] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0098] An embodiment of the present invention provides a 3D spectrum sharing method for a cognitive UAV network, such as figure 1 The flow chart of the 3D spectrum sharing method for the cognitive UAV network shown, including:

[0099] S101: Obtain the coordinates of the ground base station, the UAV and the UAV receiver;

[0100] S102: Calculate the parameters of the UAV air-to-ground channel model, and create a 3D space-time spectrum sensing model;

[0101] S103: Calculate the false detection probability and detection probability under the UAV 3D space-time spectrum sensing;

[0102] S104: Calculate the transmission probability without interference between UAVs based on the distribution of UAVs and the preset minimum distance constraint;

[0103] S10...

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Abstract

The invention provides a 3D spectrum sharing method and device for a cognitive unmanned aerial vehicle network, and relates to the technical field of wireless communication. A three-dimensional composite space-time spectrum sensing model is constructed based on a sight distance probability model and the flexibility of the positions of unmanned aerial vehicles, the non-interference transmission probability between the unmanned aerial vehicles is deduced, and the throughput which can be obtained by the downlink of the cognitive unmanned aerial vehicle network is obtained, and then a cognitive unmanned aerial vehicle network throughput optimization model is formulated, and the downlink throughput is maximized by jointly optimizing the sensing time, transmission power and flight height of the unmanned aerial vehicle. According to the method, through joint optimization of the unmanned aerial vehicle sensing time, the unmanned aerial vehicle transmission power and the unmanned aerial vehicle flight height, the downlink throughput of the cognitive unmanned aerial vehicle network is maximized, idle spectrum resources of a ground base station are effectively utilized, and the spectrum utilization rate and the throughput are further improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for 3D spectrum sharing of cognitive UAV network. Background technique [0002] Due to the high mobility and flexibility of UAVs and the rapid development of the Internet of Things, UAVs can support multiple applications and complete various complex tasks independently. At present, UAVs have been used in fields such as aerial survey, photography, search and rescue, traffic control, cargo delivery, precision agriculture and telecommunications. These bandwidth-dependent UAV applications and densely deployed UAV networks need to transmit a large amount of data, and people have put forward stricter requirements on the communication performance of UAVs. However, the licensed spectrum for UAV-based communication is limited, and it is not economically feasible to build new private networks, and UAVs usually compete for spectrum resources with ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/14H04B17/382H04B7/185H04W84/06
CPCH04W16/14H04B17/382H04B7/18506H04W84/06Y02A40/10Y02D30/70Y02T10/40
Inventor 杜利平谭英陈月云
Owner UNIV OF SCI & TECH BEIJING
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