A Random Geometry-Based Diagnostic Method for Safe Communication of Unmanned Aerial Vehicles

Abstract

The invention discloses a diagnostic method for safe communication of unmanned aerial vehicles based on random geometry. The method is to establish a line-of-sight communication system from a three-dimensional space ground station to an unmanned aerial vehicle. The communication system is regarded as a radius of R (R>0) Hemisphere, the ground station is located in the center of the hemisphere; legal UAVs and eavesdropping UAVs are evenly distributed and independent of each other in the hemisphere; the statistical characteristics of the signal-to-noise ratio on the communication link from the ground station to the UAV are obtained according to stochastic geometry theory , the statistical characteristics of the signal-to-noise ratio include its cumulative distribution function and probability density function; control the information transmission from the ground station to the legal UAV according to the confidentiality interruption probability; when the confidentiality interruption probability is less than or equal to the interruption probability threshold, maintain normal information transmission ; When the confidentiality interruption probability is greater than the interruption probability threshold, an early warning is given and the information transmission content is switched immediately, and the position of the legal drone is adjusted in time. The invention ensures the safety of the communication system from the ground station to the drone. At the same time, the randomness of the position of the UAV and the number of eavesdropping UAVs are also taken into account, so that the method of the present invention is more practical and solves the confidentiality problem of UAV communication in military, civil and other fields.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a method for safe communication diagnosis of unmanned aerial vehicles based on random geometry. Background technique [0002] Recently, drone communications have attracted increasing interest from researchers, as they are considered to be an effective complement to space communications, providing robust and reliable communication networks. Not only can UAVs play a key role in military and civilian fields, but they can also be applied to wireless communications, such as acting as aerial base stations or relays. Since the height of UAVs is much higher than that of ground terminals, UAV-to-ground links are usually controlled by line-of-sight channels, thus ignoring multipath effects such as shadows and small-scale fading, which can provide better communication performance. [0003] However, most of the existing literature does not consider the security of classifie...

AI Technical Summary

Problems solved by technology

However, the security of UAV communication systems has not been well analyzed and studied

[0004] In addition, most studies only consider the fixed location and fixed number of UAVs, while UAVs can move freely in three-dimensional space

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