Resource allocation optimization method for wireless power supply covert communication system

Abstract

The invention discloses a resource allocation optimization method of a wireless power supply covert communication system under support of an unmanned aerial vehicle. The method comprises four parts of system model construction, listener binary hypothesis, covert condition derivation and resource allocation problem proposing and solving. Interference signals emitted by the unmanned aerial vehicle are used as energy signals of legal receiving equipment, signal multiplexing is achieved, the function of the signals is greatly improved, meanwhile, the safety problem under sight distance transmission of the unmanned aerial vehicle is solved, the concealment of information transmission of the legal receiving equipment is achieved, and the safety of the unmanned aerial vehicle is improved. And the listener is difficult to find the communication between the legal receiving equipment and the unmanned aerial vehicle.

Description

technical field [0001] The invention relates to a mobile communication method, in particular to a resource allocation optimization method of a wireless power supply concealed communication system supported by an unmanned aerial vehicle. Background technique [0002] As communication scenarios become more and more complex, traditional fixed base stations will no longer adapt to complex communication systems in various scenarios, while Unmanned Aerial Vehicle (UAV) has the advantages of small size, low consumption, convenience and power. The merits of battlefield survivability have become a hot topic of recent research. The coordinated communication network system of drones also provides a good solution for communication scenarios that cannot be covered by base stations. On the other hand, when the UAV is used as a mobile base station, it can well control the distance from the legal receiving device (Legitimate Device, LD), thereby forming a line of sight transmission channel...

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Problems solved by technology

[0005] In general, the current research on WPT and WIT that combines UAVs does not consider communication security issues, which often cause great security holes; and the related research on covert communication does not consider the scenario of WPT network, because of this Scenario UAV transmission power is very high and it is difficult to achieve covert communication, so this research is extremely important, and there are many challenges

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