A Joint Optimization Method of User Scheduling and Power Allocation for UAV Relay Network

Abstract

The present invention relates to a user scheduling and power allocation joint optimization method for UAV relay network, which is suitable for data transmission between wireless user terminals and control centers in emergency scenarios, wherein UAVs are used as relay nodes , under the constraints that the total power of the two hops is limited, the present invention maximizes the channel capacity by optimizing the allocation of power resources of the two links. At the same time, in a multi-user scenario, the present invention will jointly consider user scheduling and power allocation, select users with the best channel quality to access the UAV relay network, and optimize power allocation accordingly. Compared with the traditional average power distribution method, the power distribution method proposed by the present invention significantly improves the UAV relay transmission capacity.

Description

technical field The invention relates to a joint optimization method for user scheduling and power allocation oriented to an unmanned aerial vehicle relay network, and belongs to the technical field of wireless communication. Background technique In recent years, large-scale natural disasters have occurred from time to time, which not only caused serious social impacts, but also brought huge economic losses. Therefore, they have been highly valued and widely concerned by governments at all levels and all walks of life. However, after various natural disasters such as earthquakes and snow disasters, unfavorable situations such as traffic jams, power outages, and large-scale paralysis of communication transmission lines often occur, which seriously hinder emergency rescue operations. At this time, it is particularly important to quickly establish a corresponding emergency communication command network. Contents of the invention The technical problem to be solved by the pre...

AI Technical Summary

Problems solved by technology

However, after various natural disasters such as earthquakes and snowstorms, unfavorable situations such as traffic jams, power outages, and large-scale paralysis of communication transmission lines often occur, which seriously hinder emergency rescue operations.

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