A method and device for unmanned aerial vehicle network deployment and resource allocation

Abstract

The present application discloses a UAV network deployment and resource allocation method and its device, wherein a UAV network deployment and resource allocation method specifically includes the following steps: performing initialization parameter settings; optimizing D2D user cache placement information according to the initialization parameters ; Optimize the UAV flight trajectory information according to the optimized D2D user cache placement information; optimize the UAV cache placement information according to the optimized UAV flight trajectory; repeat the above steps to determine whether the second specified number of iterations is reached; For the second specified number of iterations, the optimized D2D user cache placement information, the optimized UAV flight trajectory information and the optimized UAV cache placement information are respectively used as the best D2D user cache placement information, the best unmanned UAV flight trajectory information and optimal UAV cache placement information. The present application can improve the quality of experience of D2D users and the effectiveness of caching content, while saving energy consumption in the system.

Description

technical field [0001] The present application relates to the field of mobile communications, and in particular to a method and device for network deployment and resource allocation of unmanned aerial vehicles. Background technique [0002] Due to the advantages of small size, high flexibility, and low deployment cost of UAVs, UAVs are deployed as air base stations to assist traditional cellular networks in communication. The main application scenarios include coverage of hotspot areas, information transmission, and emergency communications. In densely populated areas, a large number of users initiate requests to the base station at the same time, resulting in overloaded base stations and network congestion, and users cannot have a good experience. At this time, the UAV base station can hover over the area or fly along a fixed trajectory, helping the ground base station to share part of the user requests, relieve the load of the base station and improve the quality of user e...

AI Technical Summary

Problems solved by technology

[0006] Based on this, the present application provides a UAV network deployment and resource allocation method and device to solve the problem of joint optimization of D2D user cache placement strategy, UAV flight trajectory and UAV cache placement strategy in the prior art to improve cache effectiveness technical issues

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